Created attachment 33898 [details]
dmesg output

Created attachment 33899 [details]
lspci output

This seems related to two existing fedora bugs :
https://bugzilla.redhat.com/show_bug.cgi?id=567412
https://bugzilla.redhat.com/show_bug.cgi?id=566987

When using fedora nouveau code, it's usually advised to use fedora bug report.
People following this bug tracker might expect you to run latest git of all nouveau components :
http://nouveau.freedesktop.org/wiki/InstallNouveau
(two main reasons for that : 1) git is usually better and has more fixes 2) we do not know what code exactly nouveau is shipping)

As said in https://bugzilla.redhat.com/show_bug.cgi?id=567412#c6 , using the latest git of xf86-video-nouveau would at least fix the DATA ERROR you see in kernel log and rules that out.

However, according to mwk, the data error is unlikely to be related to the hangs. Also he believes he might have the same problem using recent nouveau code. To confirm that, he would like to know the value of the 400700 register next time the machine hangs :
$ wget http://0x04.net/~mwk/pgtest/{peek.c,libio.{c,h}}
$ gcc peek.c libio.c  -lpciaccess -o peek
# ./peek 0x400700

Sorry for misplaced report. 

It happens again - ./peek 0x400700 output is 
00400700: 00100001

So, is there chance this problem resolved in git driver?

(In reply to comment #4)
> Sorry for misplaced report. 
> 
> It happens again - ./peek 0x400700 output is 
> 00400700: 00100001
> 
> So, is there chance this problem resolved in git driver?
> 

17:53 < mwk> shining^: heh, ok, so the bug report looks like it could be related...
17:53 < mwk> his failing status is 00100001, mine is 01b00001....
17:54 < shining^> mwk: well thats different :)
17:54 < mwk> not so different
17:54 < mwk> mine includes all of his bits
17:54 < mwk> too bad I don't know what most of these bits mean...
17:55 < mwk> 00800000 is CUDA MP execution, 00000001 is the whole PGRAPH... and that's about it
17:57 < shining^> mwk: ok. and it also hangs regularly for you ?
17:57 < shining^> "usually once per 1-2 days"
17:57 < mwk> shining^: much more often when I'm playing some 3d on it
17:58 < shining^> ok
17:58 < mwk> possibly I could get more lockups out of it, and of the 00100001 kind, if I left X running for long
17:58 < shining^> I suppose the answer to that question is no then : "So, is there chance this problem resolved in git driver?"
17:59 < mwk> with current git? /me doubts that.

Thanks. I called ./peek 0x400700 when X hangs another time, its output was:
00400700: 001e0001

Just in case if it helps somehow:
- when X hangs, mouse cursor still running
- since update to 2.6.32.9, it appears X hangs more often than before, and usually system can not be restored by killing X (X restarts, but screen remains the same as in moment when hang occurs)

This bug is a huge mystery and I'm starting to think it's a hw bug. One possibility is that it's triggered by a particular insn sequence that DDX uses. Could you please try http://0x04.net/~mwk/nva5-hack.patch and see if the lockups still happen?

If anyone hits this bug, with the above patch or without, please compile pgtest from http://0x04.net/cgit/index.cgi/pgtest and give the output of ./peek 0x400000 0x10000 after the lockup.

I have observed this bug also on Ubuntu 10.04 (Details below):

[…]
(II) NOUVEAU(0): Modeline "1152x864"x0.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz)
(II) NOUVEAU(0): Modeline "1400x1050"x0.0  156.00  1400 1504 1648 1896  1050 1053 1057 1099 -hsync +vsync (82.3 kHz)
(II) NOUVEAU(0): Modeline "1440x900"x0.0  106.50  1440 1520 1672 1904  900 903 909 934 -hsync +vsync (55.9 kHz)
(II) NOUVEAU(0): Modeline "1440x900"x0.0  136.75  1440 1536 1688 1936  900 903 909 942 -hsync +vsync (70.6 kHz)
(II) NOUVEAU(0): Modeline "1680x1050"x0.0  146.25  1680 1784 1960 2240  1050 1053 1059 1089 -hsync +vsync (65.3 kHz)
[mi] EQ overflowing. The server is probably stuck in an infinite loop.

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x4a3248]
1: /usr/bin/X (mieqEnqueue+0x1f4) [0x4a2ac4]
2: /usr/bin/X (xf86PostMotionEventP+0xc4) [0x47cea4]
3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f5182f10000+0x53cf) [0x7f5182f153cf]
4: /usr/bin/X (0x400000+0x6fca7) [0x46fca7]
5: /usr/bin/X (0x400000+0x11d1f3) [0x51d1f3]
6: /lib/libpthread.so.0 (0x7f518823e000+0xf8f0) [0x7f518824d8f0]
7: /lib/libc.so.6 (ioctl+0x7) [0x7f5186ff6157]
8: /lib/libdrm.so.2 (drmIoctl+0x28) [0x7f51855a75b8]
9: /lib/libdrm.so.2 (drmCommandWrite+0x1b) [0x7f51855a783b]
10: /lib/libdrm_nouveau.so.1 (0x7f5184f69000+0x2f7d) [0x7f5184f6bf7d]
11: /lib/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xfc) [0x7f5184f6c1bc]
12: /lib/libdrm_nouveau.so.1 (0x7f5184f69000+0x2166) [0x7f5184f6b166]
13: /lib/libdrm_nouveau.so.1 (nouveau_pushbuf_flush+0x29c) [0x7f5184f6b4fc]
14: /usr/lib/xorg/modules/libexa.so (0x7f51840c4000+0x8876) [0x7f51840cc876]
15: /usr/lib/xorg/modules/libexa.so (0x7f51840c4000+0x9415) [0x7f51840cd415]
16: /usr/bin/X (0x400000+0xd8a7b) [0x4d8a7b]
17: /usr/bin/X (0x400000+0x2ebb4) [0x42ebb4]
18: /usr/bin/X (0x400000+0x30c3c) [0x430c3c]
19: /usr/bin/X (0x400000+0x261aa) [0x4261aa]
20: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7f5186f36c4d]
21: /usr/bin/X (0x400000+0x25d59) [0x425d59]

strace shows tons of this:

[…]
--- SIGALRM (Alarm clock) @ 0 (0) ---
rt_sigreturn(0xe)                       = -1 EINTR (Interrupted system call)
ioctl(8, 0x40086485, 0x7fff98e3a6d0)    = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) @ 0 (0) ---
rt_sigreturn(0xe)                       = -1 EINTR (Interrupted system call)
ioctl(8, 0x40086485, 0x7fff98e3a6d0)    = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) @ 0 (0) ---
rt_sigreturn(0xe)                       = -1 EINTR (Interrupted system call)
ioctl(8, 0x40086485, 0x7fff98e3a6d0)    = ? ERESTARTSYS (To be restarted)
--- SIGALRM (Alarm clock) @ 0 (0) ---
rt_sigreturn(0xe)                       = -1 EINTR (Interrupted system call)
ioctl(8, 0x40086485, 0x7fff98e3a6d0)    = ? ERESTARTSYS (To be restarted)
[…]

neper:~# uname -a
Linux neper 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64 GNU/Linux
neper:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 10.04 LTS
Release:        10.04
Codename:       lucid
neper:~# dpkg -l | fgrep nouveau
ii  libdrm-nouveau1             2.4.18-1ubuntu3                        […]
ii  xserver-xorg-video-nouveau  1:0.0.15+git20100219+9b4118d-0ubuntu5  […]
neper:~# dpkg -l | egrep 'xserver-xorg( |-core)'
ii  xserver-xorg                1:7.5+5ubuntu1                         […]
ii  xserver-xorg-core           2:1.7.6-2ubuntu7                       […]
neper:~# lspci | fgrep VGA
01:00.0 VGA compatible controller: nVidia Corporation GT218 [GeForce 210] (rev a2)
neper:~#

*** Bug 28320 has been marked as a duplicate of this bug. ***

(In reply to comment #7)
> If anyone hits this bug, with the above patch or without, please compile pgtest
> from http://0x04.net/cgit/index.cgi/pgtest and give the output of ./peek
> 0x400000 0x10000 after the lockup.

I can get this to hang almost at will, on a fresh Fedora 13 install, I've attached output from the peek run, hope it helps.

Created attachment 36471 [details]
Xorg and peek output after hang

(In reply to comment #7)
> This bug is a huge mystery and I'm starting to think it's a hw bug. 

I'm getting the same symptoms on a fresh install of ubuntu 10.04 on a brand new lenovo w510.  X locks up about 2 or 3 times per day - screen is frozen, even if X is restarted.

  2.6.32-22-generic-pae #36-Ubuntu SMP Thu Jun 3 23:14:23 UTC 2010 i686 

next time it happens, I'll ssh into the machine and gather more information.

Created attachment 36485 [details]
dmesg taken during X lockup

It happened again....
here is the dmesg output that I captured by ssh-ing in while X was in 100% CPU state.

I also thought I had captured and strace... but I made a mistake. I'll capture that next time. Is there anything else you need, this is happening every few hours for me?

(In reply to comment #13)
> that next time. Is there anything else you need, this is happening every few
> hours for me?
See comment#7, Marcin says he wants output from "peek" after a hang has occurred.

Status update.

First, we don't need any additional dumps - Ben found a reliable way to reproduce this bug semi-instantly, so we can make any dumps we need.

But, we still have no idea what's causing this bug. And right now all developers hunting for this bug are either too busy with other things, or on vacation.

So, please no more dumps. You have four options:

 - use other driver
 - disable acceleration [nouveau.noaccel=1 on kernel command line]
 - decide that rebooting every few hours isn't that bad after all
 - debug and fix that bug on your own

Yes, we know the situation sucks. Sorry for that.

Would you mind posting the method to reproduce the bug?

Thanks!

06:16:48 <darktama> I can reproduce the issue *very* quickly with http://www.nvnews.net/vbulletin/showthread.php?t=150598
06:16:57 <darktama> the first post has an image, and a smaller thumbnail image
06:17:42 <darktama> if I scroll up and down for a bit (<1min) with the the thumbnail going off/on the screen, it'll hang

Hm I don't have any problems with this site (have been scrolling for almost 2 minutes now without any issues).

I am using a 8600M GT, tough but I'd thought I'd test it because my X has hung twice in the last three days with the same symptoms as well...

(In reply to comment #17)
> 06:16:48 <darktama> I can reproduce the issue *very* quickly with
> http://www.nvnews.net/vbulletin/showthread.php?t=150598
> 06:16:57 <darktama> the first post has an image, and a smaller thumbnail image
> 06:17:42 <darktama> if I scroll up and down for a bit (<1min) with the the
> thumbnail going off/on the screen, it'll hang

I can't reproduce the bug with that site either using a GeForce 210, though my X hangs about twice a day.

Yeah, that's a funny thing about this testcase. Apparently it works for NVA3 and NVA5 chipsets, but not NVA8 which gt210 is based on. Maybe it's related to different TP configuration or something...

As for 8600M problem - this is almost certainly some other bug. Not all random hangs are instance of the particular bug. Does that hang give something suspicious in dmesg?

I'll try to debug it the next time it happens...

Created attachment 36508 [details]
strace taken during 100% X lockup

here is an strace of the X process during the 100% cpu lockup.  Looks like a loop to me.

I'm going to switch to the proprietary driver for a while and see if I get lockups with that.   But I really want to run the open driver (it's so much more flexible), so I'm happy to switch back if you want me to try anything.

As per comment #15, I can confirm that setting [nouveau.noaccel=1 on kernel command line] does prevent lockups (at least for 3 days).   It does result in a occasional strange display artefacts (eg black boxes left after tool tips close), but is entirely usable and causes less issues than using the proprietary driver.

squeak?

Well... the status is still the same. We [me and darktama / Ben Skeggs] both have no fucking idea what's 
causing this problem.

It turns out, stuff is complicated. NVA3+ card introduced some sort of 
microcontroller on-board that runs all the time and controls stuff like power 
management. In all NVA3+ traces, we see a lot of places where blob is talking 
to that controller and does stuff to PGRAPH. Atm we can only assume that 
lockups are caused by us not doing this.

We have no idea what exactly that microcontroller does and how to talk to it. 
Worse, this microcontroller needs microcode that is uploaded by the driver. 
And judging by what I've seen already, ctxprogs were a walk in the park 
compared to this new uc. The progs are huge, and there are shitloads of 
opcodes to RE.

So - we're blocked again on REing some magical code. And we're talking real 
code this time, as opposed to ctxprogs which were mostly just a list of regs 
to copy...

Until we understand what's going on, status for NVA3+ cards stays the same - 
we have absoluely no idea how to fix that bug and ETA is on the order of at 
least months.

And for the record: I'm going to kill anyone who calls this new progs 
"voodoo", "magic", or anything like that. We already decided on the name of 
"fuc progs". And the PM microkontroller is not the only place where there are 
used. Right now we know of the following:

 - NV98+ cryptographic engine setup
 - NV98+ cryptographic engine ctxprogs
 - NV98+ video decoding ctxprogs
 - NVA3+ unknown engine 104xxx [DMA copier?] ctxprogs
 - NVA3+ PM microcontroller
 - NVC0 PGRAPH ctxprogs

With such a huge list of users, REing fuc progs is a high priority for me. 
Keep your fingers crossed. And find lots of RE-capable people to help, this is 
going to be a long ride...

PS. Note that chipset ordering is a bit funny and it does NOT follow NVxx 
numerical values. The saner ordering I've come up with is at 
http://github.com/pathscale/envytools/blob/master/nvchipsets.xml - it best 
matches order of adding new functionality. Also, for video decoding units, 
NVA0 and NV98 should be swapped, ie. NV98+ video decoding does not include 
NVA0. So NVA3+ cards are NVA3, NVA5, NVA8, NVAF, NVC0. But not NVAA/NVAC.

PPS. In other words, if you want your card to work with nouveau, don't buy NVA3+ cards yet. Or, following nvidia codenames, don't buy stuff with GT21x chipset in it. Nor MCP89, but that one is too damn rare anyway.

PPPS. If you think you're able to RE microcodes, contact me. Srsly. We need more people. Badly.

Marcin,

thanks for the update.
Sorry I can't help with the RE side of things (got my own open source projects keeping me 200% busy).  But I am happy to help debug/test on my hardware.

Note that I still find using the nouveau driver without acceleration is much better than using the nvidea driver with acceleration.

I also have the similar problem on GT240 on OpenSuse 11.3,
I hope the backtrace may help.


#0  0x00007fddfac33e87 in ioctl () from /lib64/libc.so.6
#1  0x00007fddf93ebc38 in drmIoctl (fd=10, request=1074291842, arg=0x7fffca3b0330) at xf86drm.c:184
#2  0x00007fddf93edf3b in drmCommandWrite (fd=<value optimized out>, drmCommandIndex=<value optimized out>, data=<value optimized out>, size=<value optimized out>)
    at xf86drm.c:2398
#3  0x00007fddf8dad07d in nouveau_bo_wait (bo=0x829b00, cpu_write=<value optimized out>, no_wait=<value optimized out>, no_block=<value optimized out>)
    at nouveau_bo.c:385
#4  0x00007fddf8dad68e in nouveau_bo_map_range (bo=0x829b00, delta=0, size=<value optimized out>, flags=8) at nouveau_bo.c:428
#5  0x00007fddf8dac21a in nouveau_pushbuf_space (chan=0x8366c0, min=<value optimized out>) at nouveau_pushbuf.c:53
#6  0x00007fddf8dac760 in nouveau_pushbuf_flush (chan=0x8366c0, min=0) at nouveau_pushbuf.c:273
#7  0x00007fddf7f0e7a5 in ?? () from /usr/lib64/xorg/modules/libexa.so
#8  0x00007fddf7f10272 in ?? () from /usr/lib64/xorg/modules/libexa.so

Adding a me too.  

NVA8, GT218

[drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 2

Fedora 13. Seems to happen reproducably after playing freeciv for 45 - 60 minutes.

[  3407.261] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
[  3407.262] 
Backtrace:
[  3407.272] 0: /usr/bin/Xorg (xorg_backtrace+0x3c) [0x80ad11c]
[  3407.272] 1: /usr/bin/Xorg (mieqEnqueue+0x1b7) [0x809b8f7]
[  3407.272] 2: /usr/bin/Xorg (xf86PostMotionEventP+0xd2) [0x80c8232]
[  3407.272] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0xe7c000+0x30a2) [0xe7f0a2]
[  3407.272] 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xe7c000+0x3349) [0xe7f349]
[  3407.272] 5: /usr/bin/Xorg (0x8047000+0x76c30) [0x80bdc30]
[  3407.272] 6: /usr/bin/Xorg (0x8047000+0x12db64) [0x8174b64]
[  3407.272] 7: (vdso) (__kernel_sigreturn+0x0) [0xdba400]
[  3407.272] 8: (vdso) (__kernel_vsyscall+0x2) [0xdba416]
[  3407.272] 9: /lib/libc.so.6 (ioctl+0x19) [0x74c0b9]
[  3407.272] 10: /usr/lib/libdrm.so.2 (drmIoctl+0x2e) [0x7fd6a7e]
[  3407.272] 11: /usr/lib/libdrm.so.2 (drmCommandWrite+0x3c) [0x7fd6e0c]
[  3407.273] 12: /usr/lib/libdrm_nouveau.so.1 (0xfb5000+0x2a9a) [0xfb7a9a]
[  3407.273] 13: /usr/lib/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xf1) [0xfb7c91]
[  3407.273] 14: /usr/lib/libdrm_nouveau.so.1 (nouveau_bo_map+0x34) [0xfb7d64]
[  3407.273] 15: /usr/lib/libdrm_nouveau.so.1 (0xfb5000+0x1c2e) [0xfb6c2e]
[  3407.273] 16: /usr/lib/libdrm_nouveau.so.1 (nouveau_pushbuf_flush+0x1ca) [0xfb700a]
[  3407.273] 17: /usr/lib/xorg/modules/drivers/nouveau_drv.so (0x131000+0x1b76f) [0x14c76f]
[  3407.273] 18: /usr/lib/xorg/modules/libexa.so (0x163000+0x8ac3) [0x16bac3]
[  3407.273] 19: /usr/lib/xorg/modules/libexa.so (0x163000+0x9673) [0x16c673]
[  3407.273] 20: /usr/bin/Xorg (0x8047000+0xe6f26) [0x812df26]
[  3407.273] 21: /usr/bin/Xorg (0x8047000+0x17967d) [0x81c067d]
[  3407.273] 22: /usr/bin/Xorg (miCompositeRects+0x7f) [0x81c079f]
[  3407.273] 23: /usr/bin/Xorg (CompositeRects+0x74) [0x811da34]
[  3407.273] 24: /usr/bin/Xorg (0x8047000+0xe036d) [0x812736d]
[  3407.273] 25: /usr/bin/Xorg (0x8047000+0xdc494) [0x8123494]
[  3407.273] 26: /usr/bin/Xorg (0x8047000+0x50a37) [0x8097a37]
[  3407.273] 27: /usr/bin/Xorg (0x8047000+0x1b595) [0x8062595]
[  3407.273] 28: /lib/libc.so.6 (__libc_start_main+0xe6) [0x68dcc6]
[  3407.273] 29: /usr/bin/Xorg (0x8047000+0x1b181) [0x8062181]

Can we please stop with the "me too"s and useless backtraces already? We already know the bug affects anyone with NVA3+ cards and the backtraces only show the fallout of the fallout of the fallout of the original problem...

Also: if you get a DMA_PUSHER, that's another bug. This bug happens with total silence from the kernel - the card just hangs without telling us why.

Now, a status update. So far, I REd the instruction set and disaassembled a good chunk of that microcode. Sure enough, it pokes PGRAPH and watches for stuff on it. But the code doesn't yet fully make sense to me, and I'm temporarily away from my NVA5 card, so... could someone dump some registers for me?

I need a dump of the registers both before and after the hang. The interesting stuff is in 10axxx range, and ideally I'd want output of "./peek 10a000 1000". However, if the card doesn't like it and hangs or something upon that command, dump registers individually instead by doing "./peek X" for X being 10a008, 10a6fc, 10a4fc, 10a4f4, 10a714, 10a700, 10a704, 10a4dc, 10a690, 10a688.

Repeating that 2 or 3 times may be useful, esp. across different chipsets. But not TOO much, please.

Created attachment 37625 [details]
peek results from before lockup

Created attachment 37626 [details]
peek results after lockup

Created attachment 37627 [details]
Xorg.0.log from lockup

I found this bug while researching my X locks up issue.  
This solution does not address the hardware issue documented here, but
I want help anyone who is in a similar situation that does *NOT* have
the hardware lockup and that the noaccel=1 does not work.

In my case all you have to do is move a window and then immediately
click in another window.  There may be other ways to reproduce this.

The only workaround is to restart the window manager or Xorg.

Investigating the issue I found this patch:
http://cgit.freedesktop.org/xorg/xserver/patch/?id=1884db430a5680e37e94726dff46686e2218d525
Subject: Revert "dix: use the event mask of the grab for TryClientEvents."

I am using xorg-server-1.8.0 and found the issue was introduced in
xorg-server-1.6.3. The patch fix appears in xorg-server-1.8.2 and later

./peek'ing my QUADRO NVS 140M results in all zeroes ("...") before and after the lockup, regardless of whether I peek the range "10a000 1000" or the single addresses. Am I doing anything wrong?

Things that cause lockups with nouveau appear to increasingly slow down the blob-driver, which because of this is also no option for me to use. After some time using KDE4/Skype/Firefox/OpenOffice the system becomes terribly slow with blob.

If I can be of any help with testing, please let me know.

(In reply to comment #34)
> ./peek'ing my QUADRO NVS 140M results in all zeroes ("...") before and after
> the lockup, regardless of whether I peek the range "10a000 1000" or the single
> addresses. Am I doing anything wrong?

Yes. you didn't listen when I said this bug is NVA3+ only. Your card is NV86.

Do you get any interesting messages in kernel around the lockup? This is almost certainly some other bug.

(In reply to comment #35)
> Yes. you didn't listen when I said this bug is NVA3+ only. Your card is NV86.
> 
> Do you get any interesting messages in kernel around the lockup? This is almost
> certainly some other bug.

OK, sorry for that. Yes, my kernel gives me

[29470.176297] [drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 2
[29470.176975] [drm] nouveau 0000:01:00.0: PGRAPH_DATA_ERROR - Ch 2/5 Class 0x8297 Mthd 0x1560 Data 0x00000000:0xcccccccc
[29470.176979] [drm] nouveau 0000:01:00.0: PGRAPH_DATA_ERROR - INVALID_VALUE
[29470.176990] [drm] nouveau 0000:01:00.0: PGRAPH_DATA_ERROR - Ch 2/5 Class 0x8297 Mthd 0x1564 Data 0x00000000:0xcccccccc
[29470.176993] [drm] nouveau 0000:01:00.0: PGRAPH_DATA_ERROR - INVALID_BITFIELD

So, I think I'll try my luck with bug 26733 or open a new one, if they don't like my problem there either :)

Created attachment 39004 [details]
./peek 10a000 1000 after and before the crash

07:00.0 VGA compatible controller: nVidia Corporation Device 0a65 (rev a2)

here are my dumps

note that "before" is actually after reboot - don't know how to capture right before the freeze

*** Bug 30817 has been marked as a duplicate of this bug. ***

Created attachment 39589 [details]
Before and after peek 10a000 on ION2

Here are 3 more peeks, before and after, using a different chipset as you said that might be interesting to you.

01:00.0 VGA compatible controller: nVidia Corporation GT218 [ION] (rev a2) (prog-if 00 [VGA controller])
	Flags: bus master, fast devsel, latency 0, IRQ 16
	Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
	Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Memory at ce000000 (64-bit, prefetchable) [size=32M]
	I/O ports at dc00 [size=128]
	Expansion ROM at fe980000 [disabled] [size=512K]
	Capabilities: [60] Power Management version 3
	Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
	Capabilities: [78] Express Endpoint, MSI 00
	Capabilities: [b4] Vendor Specific Information: Len=14 <?>
	Capabilities: [100] Virtual Channel
	Capabilities: [128] Power Budgeting <?>
	Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
	Kernel driver in use: nouveau


I do see messages in the kernel, but as you mentioned it's a separate bug. They appear inconsistently during this failure.
[drm] nouveau 0000:01:00.0: PFIFO_DMA_PUSHER - Ch 2
and sometimes also:
[drm] nouveau 0000:01:00.0: PGRAPH_DATA_ERROR - Ch 2/2 Class 0x502d Mthd 0x0240 Data 0x00000000:0x00086184
[drm] nouveau 0000:01:00.0: PGRAPH_DATA_ERROR - INVALID_VALUE


This is on openSUSE Factory, kernel 2.6.36-rc4
xorg-x11-server-7.5_1.9.0.902-69.3.x86_64
xorg-x11-driver-video-nouveau-0.0.16_20101010_8c8f15c-14.1.x86_64
libdrm-2.4.22-27.2.x86_64

Jeff, please try whether it is valid with packages from home:jobermayr.

(In reply to comment #40)
> Jeff, please try whether it is valid with packages from home:jobermayr.

I'm afraid so. Same symptoms. Is another dump needed or are the ones I've provided already sufficient?

(In reply to comment #3)
> However, according to mwk, the data error is unlikely to be related to the
> hangs. Also he believes he might have the same problem using recent nouveau
> code. To confirm that, he would like to know the value of the 400700 register
> next time the machine hangs :
> $ wget http://0x04.net/~mwk/pgtest/{peek.c,libio.{c,h}}
> $ gcc peek.c libio.c  -lpciaccess -o peek
> # ./peek 0x400700

Landed here from bug 33357 that might be a duplicate of this one.
For n00bs like me the commands have changed a bit, I managed to figure out the first one to be:
$ wget http://0x04.net/cgit/index.cgi/pgtest/{peek.c,libio.{c,h}}

The second one gives me the following:

$ gcc peek.c libio.c -lpciaccess -o peek
peek.c:1:1: error: expected identifier or ‘(’ before ‘<’ token
peek.c:3:13: warning: character constant too long for its type
peek.c:3:53: warning: multi-character character constant
peek.c:3:63: warning: multi-character character constant
peek.c:6:12: warning: character constant too long for its type
peek.c:6:32: warning: character constant too long for its type
peek.c:7:12: warning: character constant too long for its type
peek.c:7:29: warning: character constant too long for its type
peek.c:8:11: warning: character constant too long for its type
peek.c:8:29: warning: character constant too long for its type
peek.c:8:45: warning: character constant too long for its type
peek.c:9:11: warning: character constant too long for its type
peek.c:9:29: warning: character constant too long for its type
peek.c:9:46: warning: character constant too long for its type
peek.c:9:106: warning: character constant too long for its type
peek.c:12:9: warning: multi-character character constant
peek.c:12:26: warning: character constant too long for its type
peek.c:14:11: warning: multi-character character constant
peek.c:14:38: warning: character constant too long for its type
peek.c:14:66: warning: character constant too long for its type
peek.c:14:87: warning: character constant too long for its type
peek.c:15:11: warning: multi-character character constant
peek.c:15:26: warning: character constant too long for its type
peek.c:15:66: warning: character constant too long for its type
peek.c:15:80: warning: character constant too long for its type
peek.c:15:131: warning: multi-character character constant
peek.c:15:151: warning: multi-character character constant
peek.c:15:164: error: empty character constant
peek.c:16:27: warning: character constant too long for its type
peek.c:17:23: warning: character constant too long for its type
peek.c:17:37: error: empty character constant
peek.c:17:46: warning: character constant too long for its type
peek.c:18:15: warning: multi-character character constant
peek.c:18:46: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘this’
peek.c:18:56: warning: character constant too long for its type
peek.c:19:16: warning: character constant too long for its type
peek.c:19:1: error: stray ‘\305’ in program
peek.c:19:1: error: stray ‘\233’ in program
peek.c:20:14: warning: multi-character character constant
peek.c:21:10: warning: character constant too long for its type
peek.c:21:24: warning: character constant too long for its type
peek.c:21:69: warning: character constant too long for its type
peek.c:21:116: warning: character constant too long for its type
peek.c:21:161: warning: character constant too long for its type
peek.c:21:208: warning: character constant too long for its type
peek.c:21:259: warning: character constant too long for its type
peek.c:21:306: warning: character constant too long for its type
peek.c:21:362: warning: multi-character character constant
peek.c:21:381: warning: character constant too long for its type
peek.c:21:396: warning: multi-character character constant
peek.c:21:409: warning: character constant too long for its type
peek.c:22:14: warning: multi-character character constant
peek.c:23:15: warning: multi-character character constant
peek.c:24:15: warning: character constant too long for its type
peek.c:25:15: warning: character constant too long for its type
peek.c:27:14: warning: multi-character character constant
peek.c:27:25: warning: multi-character character constant
peek.c:27:37: warning: multi-character character constant
peek.c:27:57: error: empty character constant
peek.c:28:13: warning: character constant too long for its type
peek.c:28:28: warning: character constant too long for its type
peek.c:31:12: warning: character constant too long for its type
peek.c:31:33: warning: character constant too long for its type
peek.c:33:12: warning: character constant too long for its type
peek.c:33:42: error: too many decimal points in number
libio.c:1:1: error: expected identifier or ‘(’ before ‘<’ token
libio.c:3:13: warning: character constant too long for its type
libio.c:3:53: warning: multi-character character constant
libio.c:3:63: warning: multi-character character constant
libio.c:6:12: warning: character constant too long for its type
libio.c:6:32: warning: character constant too long for its type
libio.c:7:12: warning: character constant too long for its type
libio.c:7:29: warning: character constant too long for its type
libio.c:8:11: warning: character constant too long for its type
libio.c:8:29: warning: character constant too long for its type
libio.c:8:45: warning: character constant too long for its type
libio.c:9:11: warning: character constant too long for its type
libio.c:9:29: warning: character constant too long for its type
libio.c:9:46: warning: character constant too long for its type
libio.c:9:106: warning: character constant too long for its type
libio.c:12:9: warning: multi-character character constant
libio.c:12:26: warning: character constant too long for its type
libio.c:14:11: warning: multi-character character constant
libio.c:14:38: warning: character constant too long for its type
libio.c:14:66: warning: character constant too long for its type
libio.c:14:87: warning: character constant too long for its type
libio.c:15:11: warning: multi-character character constant
libio.c:15:26: warning: character constant too long for its type
libio.c:15:66: warning: character constant too long for its type
libio.c:15:80: warning: character constant too long for its type
libio.c:15:131: warning: multi-character character constant
libio.c:15:151: warning: multi-character character constant
libio.c:15:164: error: empty character constant
libio.c:16:27: warning: character constant too long for its type
libio.c:17:23: warning: character constant too long for its type
libio.c:17:37: error: empty character constant
libio.c:17:46: warning: character constant too long for its type
libio.c:18:15: warning: multi-character character constant
libio.c:18:46: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘this’
libio.c:18:56: warning: character constant too long for its type
libio.c:19:16: warning: character constant too long for its type
libio.c:19:1: error: stray ‘\305’ in program
libio.c:19:1: error: stray ‘\233’ in program
libio.c:20:14: warning: multi-character character constant
libio.c:21:10: warning: character constant too long for its type
libio.c:21:24: warning: character constant too long for its type
libio.c:21:69: warning: character constant too long for its type
libio.c:21:116: warning: character constant too long for its type
libio.c:21:161: warning: character constant too long for its type
libio.c:21:208: warning: character constant too long for its type
libio.c:21:259: warning: character constant too long for its type
libio.c:21:306: warning: character constant too long for its type
libio.c:21:362: warning: multi-character character constant
libio.c:21:381: warning: character constant too long for its type
libio.c:21:396: warning: multi-character character constant
libio.c:21:409: warning: character constant too long for its type
libio.c:22:14: warning: multi-character character constant
libio.c:23:15: warning: multi-character character constant
libio.c:24:15: warning: character constant too long for its type
libio.c:25:15: warning: character constant too long for its type
libio.c:27:14: warning: multi-character character constant
libio.c:27:25: warning: multi-character character constant
libio.c:27:37: warning: multi-character character constant
libio.c:27:57: error: empty character constant
libio.c:28:13: warning: character constant too long for its type
libio.c:28:28: warning: character constant too long for its type
libio.c:31:12: warning: character constant too long for its type
libio.c:31:33: warning: character constant too long for its type
libio.c:33:12: warning: character constant too long for its type
libio.c:33:42: error: too many decimal points in number

Can someone please update these instructions?
Thanks in advance.

I'd say the current instructions to build the peek (and other utilities) are:

git clone git://0x04.net/pgtest
cd pgtest
make

I have a GT220 and sometimes freezes randomly:

[  3675.146] 
Backtrace:
[  3675.153] 0: /usr/bin/X (xorg_backtrace+0x28) [0x460d18]
[  3675.153] 1: /usr/bin/X (0x400000+0x63509) [0x463509]
[  3675.153] 2: /lib64/libc.so.6 (0x34eca00000+0x32a20) [0x34eca32a20]
[  3675.153] 3: /usr/lib64/xorg/modules/extensions/libdri2.so
(DRI2CloseScreen+0x24) [0x7fb95ba39a14]
[  3675.153] 4: /usr/lib64/xorg/modules/drivers/nouveau_drv.so
(0x7fb95b809000+0xd6ab) [0x7fb95b8166ab]
[  3675.154] 5: /usr/bin/X (0x400000+0xa3b49) [0x4a3b49]
[  3675.154] 6: /usr/bin/X (0x400000+0x15daec) [0x55daec]
[  3675.154] 7: /usr/bin/X (0x400000+0x2193c) [0x42193c]
[  3675.154] 8: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x34eca1ec5d]
[  3675.154] 9: /usr/bin/X (0x400000+0x21449) [0x421449]
[  3675.154] Segmentation fault at address 0x10
[  3675.154] 
Fatal server error:
[  3675.154] Caught signal 11 (Segmentation fault). Server aborting
[  3675.154] 
[  3675.154] 
Please consult the Fedora Project support 
         at http://bodhi.fedoraproject.org/
 for help. 
[  3675.154] Please also check the log file at "/var/log/Xorg.0.log" for
additional information.
[  3675.154] 
[  3675.157] (II) NOUVEAU(0): NVLeaveVT is called.

That error is a bit old.
Ok, i read about the random lockus some time ago.

The interesting thing is that at some point i started to use (i still do) use
the nVIDIA (P)drivers, and to my surprise, it also has random gpu lockus (granted, it is another piece of software)
But when i put my new ati HD5670 and found to also random freeze...

I run F13.
I never had issues with Slackware 13.1 and nvidia(P).
The OtherOS never freezed. with any card.

For F13 i must use pcie_aspm=off, because of issues with the sata controller.
But pcie_aspm=off also seems to set the pcie bus into gen1, (it halves the
link speed and the de-emphasys, and also changes. I do not know if it is normal to pcie_aspm=off to do that and other thins that do. 

For example the nvidia(p) report that the card is at gen1 speed. (the mb is Gen2 and the card is also Gen2) M4N72-E

Is expected for the nouvau driver to work with any pcie configuration, different link/speed aspm/no_aspm/ ? 

I know that it may not be related, but i do not know if subtle different pcie configurations (or pcie driver bugs) may lead to the vga to behave in that way.

Thanks in advance.

Created attachment 43519 [details]
before and after peek on nv40 from Lenovo T410

Here is peek before and after free, on kernel 2.6.38rc5, on Lenovo T410 laptop with integrated nividia GPU:

01:00.0 VGA compatible controller: nVidia Corporation GT218 [NVS 3100M] (rev a2) (prog-if 00 [VGA controller])
	Subsystem: Lenovo Device 2142
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at cc000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 3: Memory at ce000000 (64-bit, prefetchable) [size=32M]
	Region 5: I/O ports at 2000 [size=128]
	[virtual] Expansion ROM at cd000000 [disabled] [size=512K]
	Capabilities: <access denied>
	Kernel driver in use: nouveau

My Xorg was also blocking - only the mouse pointer keeps moving, but no other thing happends.

I solved the problem (for now), by removing the comment for the option NoAccel and setting the value to true. I'm using the xorg.conf generated with Xorg -configure with just that change, and everything seem to be working. I'm even using the composite from xfce4 (for the real transparent xfce4-terminal), and it's working ok - maybe not as fast as with accelaration.

For me it was very simple to reproduce the error. As soon as gdm was active (the default theme on debian - the one with the stars and the star rocket), a click on any menu would block everything but the mouse movement.

Here is the log for my X when it was blocking.

Anything else I can do to help solve this?

X.Org X Server 1.9.4
Release Date: 2011-02-04
[   147.356] X Protocol Version 11, Revision 0
[   147.356] Build Operating System: Linux 2.6.32.28-dsa-ia32 i686 Debian
[   147.356] Current Operating System: Linux voyager 2.6.37-1-686 #1 SMP Tue Feb 15 18:21:50 UTC 2011 i686
[   147.356] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.37-1-686 root=UUID=b69dfdff-c215-473f-9f91-1680b2773ef1 ro single
[   147.356] Build Date: 17 February 2011  01:25:01AM
[   147.356] xorg-server 2:1.9.4-2 (Cyril Brulebois <kibi@debian.org>) 
[   147.356] Current version of pixman: 0.21.4
[   147.356] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[   147.356] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   147.356] (==) Log file: "/var/log/Xorg.0.log", Time: Fri Feb 18 03:17:25 2011
[   147.356] (==) Using config file: "/etc/X11/xorg.conf"
[   147.356] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   147.373] (==) ServerLayout "X.org Configured"
[   147.373] (**) |-->Screen "Screen0" (0)
[   147.373] (**) |   |-->Monitor "Monitor0"
[   147.374] (**) |   |-->Device "Card0"
[   147.374] (**) |-->Input Device "Mouse0"
[   147.374] (**) |-->Input Device "Keyboard0"
[   147.374] (==) Automatically adding devices
[   147.374] (==) Automatically enabling devices
[   147.452] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[   147.452] 	Entry deleted from font path.
[   147.541] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[   147.541] 	Entry deleted from font path.
[   147.541] (**) FontPath set to:
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/100dpi/:unscaled,
	/usr/share/fonts/X11/75dpi/:unscaled,
	/usr/share/fonts/X11/Type1,
	/usr/share/fonts/X11/100dpi,
	/usr/share/fonts/X11/75dpi,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
	built-ins,
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/100dpi/:unscaled,
	/usr/share/fonts/X11/75dpi/:unscaled,
	/usr/share/fonts/X11/Type1,
	/usr/share/fonts/X11/100dpi,
	/usr/share/fonts/X11/75dpi,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
	built-ins
[   147.541] (**) ModulePath set to "/usr/lib/xorg/modules"
[   147.541] (WW) AllowEmptyInput is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
[   147.541] (WW) Disabling Mouse0
[   147.541] (II) Loader magic: 0x81f7140
[   147.541] (II) Module ABI versions:
[   147.541] 	X.Org ANSI C Emulation: 0.4
[   147.541] 	X.Org Video Driver: 8.0
[   147.541] 	X.Org XInput driver : 11.0
[   147.541] 	X.Org Server Extension : 4.0
[   147.542] (--) PCI:*(0:2:0:0) 10de:086f:1043:16b2 rev 177, Mem @ 0xfd000000/16777216, 0xe0000000/268435456, 0xde000000/33554432, I/O @ 0x0000dc00/128, BIOS @ 0x????????/131072
[   147.542] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[   147.542] (II) "extmod" will be loaded. This was enabled by default and also specified in the config file.
[   147.542] (II) "dbe" will be loaded. This was enabled by default and also specified in the config file.
[   147.542] (II) "glx" will be loaded. This was enabled by default and also specified in the config file.
[   147.542] (II) "record" will be loaded. This was enabled by default and also specified in the config file.
[   147.542] (II) "dri" will be loaded. This was enabled by default and also specified in the config file.
[   147.542] (II) "dri2" will be loaded. This was enabled by default and also specified in the config file.
[   147.542] (II) LoadModule: "dri"
[   147.592] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[   147.624] (II) Module dri: vendor="X.Org Foundation"
[   147.624] 	compiled for 1.9.4, module version = 1.0.0
[   147.624] 	ABI class: X.Org Server Extension, version 4.0
[   147.624] (II) Loading extension XFree86-DRI
[   147.624] (II) LoadModule: "dri2"
[   147.624] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[   147.631] (II) Module dri2: vendor="X.Org Foundation"
[   147.631] 	compiled for 1.9.4, module version = 1.2.0
[   147.631] 	ABI class: X.Org Server Extension, version 4.0
[   147.631] (II) Loading extension DRI2
[   147.631] (II) LoadModule: "dbe"
[   147.631] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[   147.632] (II) Module dbe: vendor="X.Org Foundation"
[   147.632] 	compiled for 1.9.4, module version = 1.0.0
[   147.632] 	Module class: X.Org Server Extension
[   147.632] 	ABI class: X.Org Server Extension, version 4.0
[   147.632] (II) Loading extension DOUBLE-BUFFER
[   147.632] (II) LoadModule: "extmod"
[   147.632] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[   147.634] (II) Module extmod: vendor="X.Org Foundation"
[   147.634] 	compiled for 1.9.4, module version = 1.0.0
[   147.634] 	Module class: X.Org Server Extension
[   147.634] 	ABI class: X.Org Server Extension, version 4.0
[   147.634] (II) Loading extension SELinux
[   147.634] (II) Loading extension MIT-SCREEN-SAVER
[   147.634] (II) Loading extension XFree86-VidModeExtension
[   147.634] (II) Loading extension XFree86-DGA
[   147.634] (II) Loading extension DPMS
[   147.634] (II) Loading extension XVideo
[   147.634] (II) Loading extension XVideo-MotionCompensation
[   147.634] (II) Loading extension X-Resource
[   147.634] (II) LoadModule: "record"
[   147.634] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[   147.635] (II) Module record: vendor="X.Org Foundation"
[   147.635] 	compiled for 1.9.4, module version = 1.13.0
[   147.635] 	Module class: X.Org Server Extension
[   147.635] 	ABI class: X.Org Server Extension, version 4.0
[   147.635] (II) Loading extension RECORD
[   147.635] (II) LoadModule: "glx"
[   147.653] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[   147.688] (II) Module glx: vendor="X.Org Foundation"
[   147.688] 	compiled for 1.9.4, module version = 1.0.0
[   147.688] 	ABI class: X.Org Server Extension, version 4.0
[   147.690] (==) AIGLX enabled
[   147.690] (II) Loading extension GLX
[   147.690] (II) LoadModule: "nouveau"
[   147.690] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
[   147.717] (II) Module nouveau: vendor="X.Org Foundation"
[   147.717] 	compiled for 1.9.4, module version = 0.0.16
[   147.717] 	Module class: X.Org Video Driver
[   147.717] 	ABI class: X.Org Video Driver, version 8.0
[   147.718] (II) LoadModule: "evdev"
[   147.718] (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so
[   147.727] (II) Module evdev: vendor="X.Org Foundation"
[   147.727] 	compiled for 1.9.4, module version = 2.6.0
[   147.728] 	Module class: X.Org XInput Driver
[   147.728] 	ABI class: X.Org XInput driver, version 11.0
[   147.728] (II) NOUVEAU driver Date:   Tue Nov 30 15:27:36 2010 +1000
[   147.728] (II) NOUVEAU driver for NVIDIA chipset families :
[   147.728] 	RIVA TNT    (NV04)
[   147.728] 	RIVA TNT2   (NV05)
[   147.728] 	GeForce 256 (NV10)
[   147.728] 	GeForce 2   (NV11, NV15)
[   147.728] 	GeForce 4MX (NV17, NV18)
[   147.728] 	GeForce 3   (NV20)
[   147.728] 	GeForce 4Ti (NV25, NV28)
[   147.728] 	GeForce FX  (NV3x)
[   147.728] 	GeForce 6   (NV4x)
[   147.728] 	GeForce 7   (G7x)
[   147.728] 	GeForce 8   (G8x)
[   147.728] (++) using VT number 7

[   147.729] drmOpenDevice: node name is /dev/dri/card0
[   147.729] drmOpenDevice: open result is 7, (OK)
[   147.729] drmOpenByBusid: Searching for BusID pci:0000:02:00.0
[   147.729] drmOpenDevice: node name is /dev/dri/card0
[   147.729] drmOpenDevice: open result is 7, (OK)
[   147.729] drmOpenByBusid: drmOpenMinor returns 7
[   147.729] drmOpenByBusid: drmGetBusid reports pci:0000:02:00.0
[   147.729] (II) [drm] nouveau interface version: 0.0.16
[   147.729] (II) Loading sub module "dri"
[   147.729] (II) LoadModule: "dri"
[   147.730] (II) Reloading /usr/lib/xorg/modules/extensions/libdri.so
[   147.730] (II) NOUVEAU(0): Loaded DRI module
[   147.730] drmOpenDevice: node name is /dev/dri/card0
[   147.730] drmOpenDevice: open result is 8, (OK)
[   147.730] drmOpenDevice: node name is /dev/dri/card0
[   147.730] drmOpenDevice: open result is 8, (OK)
[   147.730] drmOpenByBusid: Searching for BusID pci:0000:02:00.0
[   147.730] drmOpenDevice: node name is /dev/dri/card0
[   147.730] drmOpenDevice: open result is 8, (OK)
[   147.730] drmOpenByBusid: drmOpenMinor returns 8
[   147.730] drmOpenByBusid: drmGetBusid reports pci:0000:02:00.0
[   147.730] (II) [drm] DRM interface version 1.4
[   147.730] (II) [drm] DRM open master succeeded.
[   147.730] (--) NOUVEAU(0): Chipset: "NVIDIA NVac"
[   147.730] (==) NOUVEAU(0): Depth 24, (--) framebuffer bpp 32
[   147.730] (==) NOUVEAU(0): RGB weight 888
[   147.730] (==) NOUVEAU(0): Default visual is TrueColor
[   147.730] (==) NOUVEAU(0): Using HW cursor
[   147.730] (==) NOUVEAU(0): GLX sync to VBlank disabled.
[   147.880] (II) NOUVEAU(0): Output LVDS-1 using monitor section Monitor0
[   147.976] (II) NOUVEAU(0): Output VGA-1 has no monitor section
[   147.984] (II) NOUVEAU(0): Output HDMI-1 has no monitor section
[   148.132] (II) NOUVEAU(0): EDID for output LVDS-1
[   148.132] (II) NOUVEAU(0): Manufacturer: CPT  Model: 1401  Serial#: 0
[   148.132] (II) NOUVEAU(0): Year: 2008  Week: 39
[   148.132] (II) NOUVEAU(0): EDID Version: 1.3
[   148.132] (II) NOUVEAU(0): Digital Display Input
[   148.132] (II) NOUVEAU(0): Max Image Size [cm]: horiz.: 33  vert.: 21
[   148.132] (II) NOUVEAU(0): Gamma: 2.20
[   148.132] (II) NOUVEAU(0): No DPMS capabilities specified
[   148.132] (II) NOUVEAU(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 
[   148.132] (II) NOUVEAU(0): First detailed timing is preferred mode
[   148.132] (II) NOUVEAU(0): redX: 0.595 redY: 0.343   greenX: 0.317 greenY: 0.559
[   148.132] (II) NOUVEAU(0): blueX: 0.156 blueY: 0.132   whiteX: 0.315 whiteY: 0.329
[   148.132] (II) NOUVEAU(0): Manufacturer's mask: 0
[   148.132] (II) NOUVEAU(0): Supported detailed timing:
[   148.132] (II) NOUVEAU(0): clock: 68.9 MHz   Image Size:  331 x 207 mm
[   148.132] (II) NOUVEAU(0): h_active: 1280  h_sync: 1312  h_sync_end 1344 h_blank_end 1408 h_border: 0
[   148.132] (II) NOUVEAU(0): v_active: 800  v_sync: 801  v_sync_end 804 v_blanking: 816 v_border: 0
[   148.132] (II) NOUVEAU(0): Unknown vendor-specific block f
[   148.132] (II) NOUVEAU(0):  CPT
[   148.132] (II) NOUVEAU(0):  CLAA154WB03A
[   148.132] (II) NOUVEAU(0): EDID (in hex):
[   148.132] (II) NOUVEAU(0): 	00ffffffffffff000e14011400000000
[   148.132] (II) NOUVEAU(0): 	27120103802115780a743d9857518f28
[   148.132] (II) NOUVEAU(0): 	21505400000001010101010101010101
[   148.132] (II) NOUVEAU(0): 	010101010101ea1a0080502010302020
[   148.132] (II) NOUVEAU(0): 	13004bcf100000190000000f00202020
[   148.132] (II) NOUVEAU(0): 	2020202020206e050f00000000fe0043
[   148.132] (II) NOUVEAU(0): 	50540a202020202020202020000000fe
[   148.132] (II) NOUVEAU(0): 	00434c4141313534574230334120004d
[   148.132] (II) NOUVEAU(0): EDID vendor "CPT", prod id 5121
[   148.132] (II) NOUVEAU(0): Printing DDC gathered Modelines:
[   148.132] (II) NOUVEAU(0): Modeline "1280x800"x0.0   68.90  1280 1312 1344 1408  800 801 804 816 -hsync -vsync (48.9 kHz)
[   148.132] (II) NOUVEAU(0): Printing probed modes for output LVDS-1
[   148.132] (II) NOUVEAU(0): Modeline "1280x800"x60.0   68.90  1280 1312 1344 1408  800 801 804 816 -hsync -vsync (48.9 kHz)
[   148.132] (II) NOUVEAU(0): Modeline "1024x768"x59.9   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync (47.8 kHz)
[   148.132] (II) NOUVEAU(0): Modeline "800x600"x59.9   38.25  800 832 912 1024  600 603 607 624 -hsync +vsync (37.4 kHz)
[   148.132] (II) NOUVEAU(0): Modeline "640x480"x59.4   23.75  640 664 720 800  480 483 487 500 -hsync +vsync (29.7 kHz)
[   148.132] (II) NOUVEAU(0): Modeline "720x400"x59.6   22.25  720 744 808 896  400 403 413 417 -hsync +vsync (24.8 kHz)
[   148.132] (II) NOUVEAU(0): Modeline "640x400"x60.0   20.00  640 664 720 800  400 403 409 417 -hsync +vsync (25.0 kHz)
[   148.132] (II) NOUVEAU(0): Modeline "640x350"x59.8   17.50  640 664 720 800  350 353 363 366 -hsync +vsync (21.9 kHz)
[   148.229] (II) NOUVEAU(0): EDID for output VGA-1
[   148.236] (II) NOUVEAU(0): EDID for output HDMI-1
[   148.236] (II) NOUVEAU(0): Output LVDS-1 connected
[   148.236] (II) NOUVEAU(0): Output VGA-1 disconnected
[   148.236] (II) NOUVEAU(0): Output HDMI-1 disconnected
[   148.237] (II) NOUVEAU(0): Using exact sizes for initial modes
[   148.237] (II) NOUVEAU(0): Output LVDS-1 using initial mode 1280x800
[   148.237] (II) NOUVEAU(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[   148.237] (--) NOUVEAU(0): Virtual size is 1280x800 (pitch 0)
[   148.237] (**) NOUVEAU(0):  Driver mode "1280x800": 68.9 MHz (scaled from 0.0 MHz), 48.9 kHz, 60.0 Hz
[   148.237] (II) NOUVEAU(0): Modeline "1280x800"x60.0   68.90  1280 1312 1344 1408  800 801 804 816 -hsync -vsync (48.9 kHz)
[   148.237] (**) NOUVEAU(0):  Driver mode "1024x768": 63.5 MHz (scaled from 0.0 MHz), 47.8 kHz, 59.9 Hz
[   148.237] (II) NOUVEAU(0): Modeline "1024x768"x59.9   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync (47.8 kHz)
[   148.237] (**) NOUVEAU(0):  Driver mode "800x600": 38.2 MHz (scaled from 0.0 MHz), 37.4 kHz, 59.9 Hz
[   148.237] (II) NOUVEAU(0): Modeline "800x600"x59.9   38.25  800 832 912 1024  600 603 607 624 -hsync +vsync (37.4 kHz)
[   148.237] (**) NOUVEAU(0):  Driver mode "640x480": 23.8 MHz (scaled from 0.0 MHz), 29.7 kHz, 59.4 Hz
[   148.237] (II) NOUVEAU(0): Modeline "640x480"x59.4   23.75  640 664 720 800  480 483 487 500 -hsync +vsync (29.7 kHz)
[   148.237] (**) NOUVEAU(0):  Driver mode "720x400": 22.2 MHz (scaled from 0.0 MHz), 24.8 kHz, 59.6 Hz
[   148.237] (II) NOUVEAU(0): Modeline "720x400"x59.6   22.25  720 744 808 896  400 403 413 417 -hsync +vsync (24.8 kHz)
[   148.237] (**) NOUVEAU(0):  Driver mode "640x400": 20.0 MHz (scaled from 0.0 MHz), 25.0 kHz, 60.0 Hz
[   148.237] (II) NOUVEAU(0): Modeline "640x400"x60.0   20.00  640 664 720 800  400 403 409 417 -hsync +vsync (25.0 kHz)
[   148.237] (**) NOUVEAU(0):  Driver mode "640x350": 17.5 MHz (scaled from 0.0 MHz), 21.9 kHz, 59.8 Hz
[   148.237] (II) NOUVEAU(0): Modeline "640x350"x59.8   17.50  640 664 720 800  350 353 363 366 -hsync +vsync (21.9 kHz)
[   148.237] (**) NOUVEAU(0): Display dimensions: (330, 210) mm
[   148.237] (**) NOUVEAU(0): DPI set to (98, 96)
[   148.237] (II) Loading sub module "fb"
[   148.237] (II) LoadModule: "fb"
[   148.237] (II) Loading /usr/lib/xorg/modules/libfb.so
[   148.270] (II) Module fb: vendor="X.Org Foundation"
[   148.270] 	compiled for 1.9.4, module version = 1.0.0
[   148.270] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   148.270] (II) Loading sub module "exa"
[   148.270] (II) LoadModule: "exa"
[   148.270] (II) Loading /usr/lib/xorg/modules/libexa.so
[   148.283] (II) Module exa: vendor="X.Org Foundation"
[   148.283] 	compiled for 1.9.4, module version = 2.5.0
[   148.283] 	ABI class: X.Org Video Driver, version 8.0
[   148.283] (II) Loading sub module "shadowfb"
[   148.283] (II) LoadModule: "shadowfb"
[   148.283] (II) Loading /usr/lib/xorg/modules/libshadowfb.so
[   148.284] (II) Module shadowfb: vendor="X.Org Foundation"
[   148.284] 	compiled for 1.9.4, module version = 1.0.0
[   148.284] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   148.284] (--) Depth 24 pixmap format is 32 bpp
[   148.287] (II) NOUVEAU(0): Opened GPU channel 2
[   148.288] (II) NOUVEAU(0): [DRI2] Setup complete
[   148.288] (II) NOUVEAU(0): [DRI2]   DRI driver: nouveau
[   148.288] (II) NOUVEAU(0): GART: 512MiB available
[   148.289] (II) NOUVEAU(0): GART: Allocated 16MiB as a scratch buffer
[   148.331] (II) EXA(0): Driver allocated offscreen pixmaps
[   148.332] (II) EXA(0): Driver registered support for the following operations:
[   148.332] (II)         Solid
[   148.332] (II)         Copy
[   148.332] (II)         Composite (RENDER acceleration)
[   148.332] (II)         UploadToScreen
[   148.332] (II)         DownloadFromScreen
[   148.332] (==) NOUVEAU(0): Backing store disabled
[   148.332] (==) NOUVEAU(0): Silken mouse enabled
[   148.349] (II) NOUVEAU(0): [XvMC] Associated with Nouveau GeForce 8/9 Textured Video.
[   148.349] (II) NOUVEAU(0): [XvMC] Extension initialized.
[   148.349] (==) NOUVEAU(0): DPMS enabled
[   148.349] (II) NOUVEAU(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[   148.349] (--) RandR disabled
[   148.349] (II) Initializing built-in extension Generic Event Extension
[   148.349] (II) Initializing built-in extension SHAPE
[   148.349] (II) Initializing built-in extension MIT-SHM
[   148.349] (II) Initializing built-in extension XInputExtension
[   148.349] (II) Initializing built-in extension XTEST
[   148.349] (II) Initializing built-in extension BIG-REQUESTS
[   148.349] (II) Initializing built-in extension SYNC
[   148.349] (II) Initializing built-in extension XKEYBOARD
[   148.349] (II) Initializing built-in extension XC-MISC
[   148.349] (II) Initializing built-in extension XINERAMA
[   148.349] (II) Initializing built-in extension XFIXES
[   148.349] (II) Initializing built-in extension RENDER
[   148.349] (II) Initializing built-in extension RANDR
[   148.349] (II) Initializing built-in extension COMPOSITE
[   148.349] (II) Initializing built-in extension DAMAGE
[   148.350] (II) SELinux: Disabled on system
[   148.387] (II) AIGLX error: dlopen of /usr/lib/dri/nouveau_dri.so failed (/usr/lib/dri/nouveau_dri.so: cannot open shared object file: No such file or directory)
[   148.387] (II) AIGLX: reverting to software rendering
[   148.387] (II) AIGLX: Screen 0 is not DRI capable
[   148.508] (II) AIGLX: Loaded and initialized /usr/lib/dri/swrast_dri.so
[   148.508] (II) GLX: Initialized DRISWRAST GL provider for screen 0
[   148.511] (II) NOUVEAU(0): NVEnterVT is called.
[   148.511] (II) NOUVEAU(0): Setting screen physical size to 338 x 211
[   148.511] resize called 1280 800
[   149.108] (**) Option "CoreKeyboard"
[   149.108] (**) Keyboard0: always reports core events
[   149.108] (EE) Keyboard0: No device specified.
[   149.108] (II) UnloadModule: "evdev"
[   149.108] (EE) PreInit returned NULL for "Keyboard0"
[   149.116] (II) config/udev: Adding input device Power Button (/dev/input/event5)
[   149.116] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[   149.116] (**) Power Button: always reports core events
[   149.116] (**) Power Button: Device: "/dev/input/event5"
[   149.132] (--) Power Button: Found keys
[   149.132] (II) Power Button: Configuring as keyboard
[   149.132] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD)
[   149.132] (**) Option "xkb_rules" "evdev"
[   149.132] (**) Option "xkb_model" "pc105"
[   149.132] (**) Option "xkb_layout" "pt"
[   149.254] (II) config/udev: Adding input device Video Bus (/dev/input/event8)
[   149.254] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
[   149.254] (**) Video Bus: always reports core events
[   149.254] (**) Video Bus: Device: "/dev/input/event8"
[   149.256] (--) Video Bus: Found keys
[   149.256] (II) Video Bus: Configuring as keyboard
[   149.256] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD)
[   149.256] (**) Option "xkb_rules" "evdev"
[   149.256] (**) Option "xkb_model" "pc105"
[   149.256] (**) Option "xkb_layout" "pt"
[   149.257] (II) config/udev: Adding input device Power Button (/dev/input/event2)
[   149.257] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[   149.257] (**) Power Button: always reports core events
[   149.257] (**) Power Button: Device: "/dev/input/event2"
[   149.257] (--) Power Button: Found keys
[   149.257] (II) Power Button: Configuring as keyboard
[   149.257] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD)
[   149.257] (**) Option "xkb_rules" "evdev"
[   149.257] (**) Option "xkb_model" "pc105"
[   149.257] (**) Option "xkb_layout" "pt"
[   149.258] (II) config/udev: Adding input device Lid Switch (/dev/input/event4)
[   149.258] (II) No input driver/identifier specified (ignoring)
[   149.258] (II) config/udev: Adding input device Sleep Button (/dev/input/event3)
[   149.258] (**) Sleep Button: Applying InputClass "evdev keyboard catchall"
[   149.258] (**) Sleep Button: always reports core events
[   149.258] (**) Sleep Button: Device: "/dev/input/event3"
[   149.260] (--) Sleep Button: Found keys
[   149.260] (II) Sleep Button: Configuring as keyboard
[   149.260] (II) XINPUT: Adding extended input device "Sleep Button" (type: KEYBOARD)
[   149.260] (**) Option "xkb_rules" "evdev"
[   149.260] (**) Option "xkb_model" "pc105"
[   149.260] (**) Option "xkb_layout" "pt"
[   149.264] (II) config/udev: Adding input device HID 04d9:048e (/dev/input/event1)
[   149.264] (**) HID 04d9:048e: Applying InputClass "evdev pointer catchall"
[   149.264] (**) HID 04d9:048e: always reports core events
[   149.264] (**) HID 04d9:048e: Device: "/dev/input/event1"
[   149.264] (--) HID 04d9:048e: Found 9 mouse buttons
[   149.264] (--) HID 04d9:048e: Found scroll wheel(s)
[   149.264] (--) HID 04d9:048e: Found relative axes
[   149.264] (--) HID 04d9:048e: Found x and y relative axes
[   149.264] (II) HID 04d9:048e: Configuring as mouse
[   149.264] (II) HID 04d9:048e: Adding scrollwheel support
[   149.264] (**) HID 04d9:048e: YAxisMapping: buttons 4 and 5
[   149.264] (**) HID 04d9:048e: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[   149.264] (II) XINPUT: Adding extended input device "HID 04d9:048e" (type: MOUSE)
[   149.264] (**) HID 04d9:048e: (accel) keeping acceleration scheme 1
[   149.264] (**) HID 04d9:048e: (accel) acceleration profile 0
[   149.264] (**) HID 04d9:048e: (accel) acceleration factor: 2.000
[   149.264] (**) HID 04d9:048e: (accel) acceleration threshold: 4
[   149.264] (II) HID 04d9:048e: initialized for relative axes.
[   149.264] (II) config/udev: Adding input device HID 04d9:048e (/dev/input/mouse0)
[   149.264] (II) No input driver/identifier specified (ignoring)
[   149.265] (II) config/udev: Adding input device HDA Digital PCBeep (/dev/input/event10)
[   149.265] (II) No input driver/identifier specified (ignoring)
[   149.266] (II) config/udev: Adding input device HDA NVidia Mic (/dev/input/event11)
[   149.266] (II) No input driver/identifier specified (ignoring)
[   149.270] (II) config/udev: Adding input device Asus Laptop extra buttons (/dev/input/event9)
[   149.270] (**) Asus Laptop extra buttons: Applying InputClass "evdev keyboard catchall"
[   149.270] (**) Asus Laptop extra buttons: always reports core events
[   149.270] (**) Asus Laptop extra buttons: Device: "/dev/input/event9"
[   149.270] (--) Asus Laptop extra buttons: Found keys
[   149.270] (II) Asus Laptop extra buttons: Configuring as keyboard
[   149.270] (II) XINPUT: Adding extended input device "Asus Laptop extra buttons" (type: KEYBOARD)
[   149.270] (**) Option "xkb_rules" "evdev"
[   149.270] (**) Option "xkb_model" "pc105"
[   149.270] (**) Option "xkb_layout" "pt"
[   149.271] (II) config/udev: Adding input device AT Translated Set 2 keyboard (/dev/input/event0)
[   149.271] (**) AT Translated Set 2 keyboard: Applying InputClass "evdev keyboard catchall"
[   149.271] (**) AT Translated Set 2 keyboard: always reports core events
[   149.271] (**) AT Translated Set 2 keyboard: Device: "/dev/input/event0"
[   149.271] (--) AT Translated Set 2 keyboard: Found keys
[   149.271] (II) AT Translated Set 2 keyboard: Configuring as keyboard
[   149.271] (II) XINPUT: Adding extended input device "AT Translated Set 2 keyboard" (type: KEYBOARD)
[   149.271] (**) Option "xkb_rules" "evdev"
[   149.271] (**) Option "xkb_model" "pc105"
[   149.271] (**) Option "xkb_layout" "pt"
[   149.272] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/event7)
[   149.272] (**) SynPS/2 Synaptics TouchPad: Applying InputClass "evdev touchpad catchall"
[   149.272] (**) SynPS/2 Synaptics TouchPad: always reports core events
[   149.272] (**) SynPS/2 Synaptics TouchPad: Device: "/dev/input/event7"
[   149.272] (--) SynPS/2 Synaptics TouchPad: Found 3 mouse buttons
[   149.272] (--) SynPS/2 Synaptics TouchPad: Found absolute axes
[   149.272] (--) SynPS/2 Synaptics TouchPad: Found x and y absolute axes
[   149.272] (--) SynPS/2 Synaptics TouchPad: Found absolute touchpad.
[   149.272] (II) SynPS/2 Synaptics TouchPad: Configuring as touchpad
[   149.272] (**) SynPS/2 Synaptics TouchPad: YAxisMapping: buttons 4 and 5
[   149.272] (**) SynPS/2 Synaptics TouchPad: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[   149.272] (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD)
[   149.272] (II) SynPS/2 Synaptics TouchPad: initialized for absolute axes.
[   149.272] (II) config/udev: Adding input device SynPS/2 Synaptics TouchPad (/dev/input/mouse1)
[   149.272] (II) No input driver/identifier specified (ignoring)
[   149.273] (II) config/udev: Adding input device PC Speaker (/dev/input/event6)
[   149.273] (II) No input driver/identifier specified (ignoring)
[   164.125] [mi] EQ overflowing. The server is probably stuck in an infinite loop.
[   164.125] 
Backtrace:
[   164.125] 0: /usr/bin/X (xorg_backtrace+0x3b) [0x80adddb]
[   164.125] 1: /usr/bin/X (mieqEnqueue+0x1ab) [0x80a036b]
[   164.126] 2: /usr/bin/X (xf86PostMotionEventP+0xd2) [0x80b31f2]
[   164.126] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0xb7410000+0x462d) [0xb741462d]
[   164.126] 4: /usr/lib/xorg/modules/input/evdev_drv.so (0xb7410000+0x48c8) [0xb74148c8]
[   164.126] 5: /usr/bin/X (0x8048000+0x6962f) [0x80b162f]
[   164.126] 6: /usr/bin/X (0x8048000+0x1133a4) [0x815b3a4]
[   164.126] 7: (vdso) (__kernel_sigreturn+0x0) [0xb7817400]
[   164.126] 8: /usr/lib/libdrm.so.2 (drmCommandWrite+0x3b) [0xb780308b]
[   164.126] 9: /usr/lib/libdrm_nouveau.so.1 (0xb741a000+0x2cfa) [0xb741ccfa]
[   164.126] 10: /usr/lib/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xf1) [0xb741cf01]
[   164.126] 11: /usr/lib/libdrm_nouveau.so.1 (nouveau_bo_map+0x33) [0xb741cfd3]
[   164.126] 12: /usr/lib/xorg/modules/drivers/nouveau_drv.so (0xb7375000+0x499a) [0xb737999a]
[   164.126] 13: /usr/lib/xorg/modules/libexa.so (0xb733f000+0x57e8) [0xb73447e8]
[   164.126] 14: /usr/lib/xorg/modules/libexa.so (0xb733f000+0x5be5) [0xb7344be5]
[   164.126] 15: /usr/lib/xorg/modules/libexa.so (0xb733f000+0x839b) [0xb734739b]
[   164.126] 16: /usr/lib/xorg/modules/libexa.so (0xb733f000+0x13909) [0xb7352909]
[   164.126] 17: /usr/lib/xorg/modules/libexa.so (0xb733f000+0xf387) [0xb734e387]
[   164.126] 18: /usr/bin/X (0x8048000+0xd611d) [0x811e11d]
[   164.126] 19: /usr/bin/X (CompositePicture+0x200) [0x810f3c0]
[   164.126] 20: /usr/lib/xorg/modules/libexa.so (0xb733f000+0xe924) [0xb734d924]
[   164.126] 21: /usr/bin/X (CompositeTrapezoids+0xa8) [0x810f0a8]
[   164.126] 22: /usr/bin/X (0x8048000+0xd1d7a) [0x8119d7a]
[   164.126] 23: /usr/bin/X (0x8048000+0xcbb03) [0x8113b03]
[   164.126] 24: /usr/bin/X (0x8048000+0x2bfb7) [0x8073fb7]
[   164.126] 25: /usr/bin/X (0x8048000+0x1e63a) [0x806663a]
[   164.126] 26: /lib/i686/cmov/libc.so.6 (__libc_start_main+0xe6) [0xb752cc76]
[   164.126] 27: /usr/bin/X (0x8048000+0x1e211) [0x8066211]

*** Bug 33357 has been marked as a duplicate of this bug. ***

Is there anything the non-programmer can do t

FWIW you can see a peek of my frozen nVidia Corporation GT216 [GeForce GT 230M] (rev a2) at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/553789/+attachment/1863113/+files/peek-696104.txt

Created attachment 43864 [details]
peek_10a000_1000-tschwinge.tar.bz2

Marcin, in case you need further data, see the
peek_10a000_1000-tschwinge.tar.bz2 which I'm just attaching.  The files'
names should be explanatory.  I ran each of the invokations three times.

I will now switch to using nouveau.noaccel=1, but please tell if you need
further data or need something tested.

This system is a DELL PRECISION M4500, the graphics card's lspci output:

01:00.0 VGA compatible controller: nVidia Corporation GT216 [Quadro FX 880M] (rev a2)


I hit this while setting up the system, roughly one hour after finishing
a fresh Ubuntu 10.10 maverick installation, while browsing in Firfox some
web pages about how to get suspend / hibernate / resume working reliably
-- oh the joy of installing GNU/Linux systems on new hardware.  :-)

I have been using the git sources for two weeks, and updated to 2.6.39 yesterday:

since somewhere after 25c68aef4e6abcc3c10f593fc565c342ebe2ded8 the lockups disappeared - and I hope they wont return.

great work, thank you

I am sorry, the last comment was probably unclear:

Hardware: Thinkpad T410, NVS 3100M (nva8?)
Kernel: vanilla 2.6.39+ from kernel.org + nouveau tree merged

For anyone still experiencing this bug, here is a possible workaround (thanks to ColdFeetBob for pointing it out)

Modify* /xserver/mi/mieq.c and rebuild xserver
* Increase the "#define QUEUE_SIZE 512" to 1024, 2048 or 4096 [1]

Note that this is *not* a proper fix as you can see in the discussion [2], and it isn't recommended for unexperienced users

[1] http://www.nvnews.net/vbulletin/showpost.php?p=2398370&postcount=2
[2] https://bugs.freedesktop.org/show_bug.cgi?id=15473

I can confirm I didn't had any freeze using 2.6.39 kernel on Lenovo T410 for 3 days (I had several freezes per hour before), using GNOME Shell.

(In reply to comment #54)
> I can confirm I didn't had any freeze using 2.6.39 kernel on Lenovo T410 for 3
> days (I had several freezes per hour before), using GNOME Shell.

Frederic, you forgot to mention that it's now terribly unstable. I have regular crashes like below, especially on: VT switching, Suspend-to-RAM, etc.

Details:
(II) NOUVEAU(0): NVLeaveVT is called.

Backtrace:
0: /usr/bin/Xorg (xorg_backtrace+0x28) [0x45de88]
1: /usr/bin/Xorg (0x400000+0x62449) [0x462449]
2: /lib64/libpthread.so.0 (0x7fc7e6fb2000+0xefc0) [0x7fc7e6fc0fc0]
3: /lib64/libc.so.6 (0x7fc7e5f00000+0x7427c) [0x7fc7e5f7427c]
4: /lib64/libc.so.6 (__libc_malloc+0x70) [0x7fc7e5f76600]
5: /usr/lib64/X11/modules/libexa.so (0x7fc7e3297000+0x8d44) [0x7fc7e329fd44]
6: /usr/lib64/X11/modules/libexa.so (0x7fc7e3297000+0x53c2) [0x7fc7e329c3c2]
7: /usr/bin/Xorg (0x400000+0xa4a20) [0x4a4a20]
8: /usr/bin/Xorg (ChangeWindowAttributes+0x2e3) [0x455e23]
9: /usr/bin/Xorg (0x400000+0x27c38) [0x427c38]
10: /usr/bin/Xorg (0x400000+0x2db61) [0x42db61]
11: /usr/bin/Xorg (0x400000+0x215ce) [0x4215ce]
12: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7fc7e5f1ec5d]
13: /usr/bin/Xorg (0x400000+0x21179) [0x421179]
Segmentation fault at address (nil)

Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting

(In reply to comment #55)
> (In reply to comment #54)
> > I can confirm I didn't had any freeze using 2.6.39 kernel on Lenovo T410 for 3
> > days (I had several freezes per hour before), using GNOME Shell.
> 
> Frederic, you forgot to mention that it's now terribly unstable. I have regular
> crashes like below, especially on: VT switching, Suspend-to-RAM, etc.
> 
> Details:
> (II) NOUVEAU(0): NVLeaveVT is called.
Not even remotely related. And from the backtrace, probably not nouveau's fault either.

> 
> Backtrace:
> 0: /usr/bin/Xorg (xorg_backtrace+0x28) [0x45de88]
> 1: /usr/bin/Xorg (0x400000+0x62449) [0x462449]
> 2: /lib64/libpthread.so.0 (0x7fc7e6fb2000+0xefc0) [0x7fc7e6fc0fc0]
> 3: /lib64/libc.so.6 (0x7fc7e5f00000+0x7427c) [0x7fc7e5f7427c]
> 4: /lib64/libc.so.6 (__libc_malloc+0x70) [0x7fc7e5f76600]
> 5: /usr/lib64/X11/modules/libexa.so (0x7fc7e3297000+0x8d44) [0x7fc7e329fd44]
> 6: /usr/lib64/X11/modules/libexa.so (0x7fc7e3297000+0x53c2) [0x7fc7e329c3c2]
> 7: /usr/bin/Xorg (0x400000+0xa4a20) [0x4a4a20]
> 8: /usr/bin/Xorg (ChangeWindowAttributes+0x2e3) [0x455e23]
> 9: /usr/bin/Xorg (0x400000+0x27c38) [0x427c38]
> 10: /usr/bin/Xorg (0x400000+0x2db61) [0x42db61]
> 11: /usr/bin/Xorg (0x400000+0x215ce) [0x4215ce]
> 12: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7fc7e5f1ec5d]
> 13: /usr/bin/Xorg (0x400000+0x21179) [0x421179]
> Segmentation fault at address (nil)
> 
> Fatal server error:
> Caught signal 11 (Segmentation fault). Server aborting

I didn't forgot anything : nouveau is rock stable with 2.6.39.x kernel on my T410 (no issue with VT switch. I didn't test suspend-to-ram). Your issues are a different bug, I think (X crash, no gpu lockup).

Uuggh, this seems to be a serious problem, even when using nvidia.ko.
Why? Because xorg seems to probe drivers on startup, and somehow managing to load the nouveau module even when I want to use the nvidia module. The nouveau module then fails to unload properly (use count is always at least 1, and stays 1 even after changing to runlevel 3 and killing xorg).

I could reliably hang the system just by logging out from kdm. Syslog is full of nouveau problems - why, given that I am using nvidia?
When renaming all instances of nouveau.ko under /lib/modules the hangs disappeared.

This has always been there and seems to have zilch effect:

> ls -l /etc/modprobe.d/nvidia.conf 
-rw-r--r-- 1 root root 18 2011-04-29 22:55 /etc/modprobe.d/nvidia.conf
> cat /etc/modprobe.d/nvidia.conf
blacklist nouveau

Symptoms are random freezes requiring a hardware reset, but always involving some graphics operation. I can detect no other hardware malfunction, and lockup behaviour is not characteristic of general hardware faults (e.g. ram, cpu, disk).

My reset button is really polished now ;-((

System details:
openSUSE 11.4 with all updates installed,
currently that is kernel kernel-desktop-2.6.37.6-0.5.1.x86_64
xorg-x11-server-7.6_1.9.3-15.24.2.x86_64
The problem seems worse with
kernel-desktop-2.6.39.2-36.1.x86_64

01:00.0 VGA compatible controller: nVidia Corporation GT216 [GeForce GT 220] (rev a2)

Mobo is Gigabyte GA-880GA-UD3H with
NB/SB: AMD 880G / SB850
USB 2.0 + 3.0, SATA 3Gb + 6Gb (prob not relevant)
The chipset also contains an integrated ATI Radeon HD 4250 (which works fine on the OSS radeon driver, with the limits of the driver).
Phenom II X6 1090T CPU

(In reply to comment #58)
> Uuggh, this seems to be a serious problem, even when using nvidia.ko.
> Why? Because xorg seems to probe drivers on startup, and somehow managing to
> load the nouveau module even when I want to use the nvidia module. The nouveau
> module then fails to unload properly (use count is always at least 1, and stays
> 1 even after changing to runlevel 3 and killing xorg).

Your problem has nothing to do with this bug report.

You are (or the X server is) trying to use nouveau and nvidia drivers at the same time, which is known to cause havoc and should not be attempted. All the fallout you described fits perfectly.

The simple fix for you is to define Driver "nvidia" in your xorg.conf.
That prevents probing of any drivers and uses only what you want.

If you feel there is bad behavior in the X server, when it probes different drivers, you should file a bug against the X server. But first, make sure your distribution has not patched the X server driver probing code, e.g. by adding drivers not present in the original driver list. If they have, you should complain to your distribution.

On , bugzilla-daemon@freedesktop.org wrote:
> https://bugs.freedesktop.org/show_bug.cgi?id=26980



> --- Comment #58 from Volker Kuhlmann list0570@paradise.net.nz> 2011-07-13  
> 04:03:19 PDT ---

> Uuggh, this seems to be a serious problem, even when using nvidia.ko.

> Why? Because xorg seems to probe drivers on startup, and somehow managing  
> to

> load the nouveau module even when I want to use the nvidia module. The  
> nouveau

> module then fails to unload properly (use count is always at least 1, and  
> stays

> 1 even after changing to runlevel 3 and killing xorg).



> I could reliably hang the system just by logging out from kdm. Syslog is  
> full

> of nouveau problems - why, given that I am using nvidia?

> When renaming all instances of nouveau.ko under /lib/modules the hangs

> disappeared.



> This has always been there and seems to have zilch effect:



> > ls -l /etc/modprobe.d/nvidia.conf

> -rw-r--r-- 1 root root 18 2011-04-29 22:55 /etc/modprobe.d/nvidia.conf

> > cat /etc/modprobe.d/nvidia.conf

> blacklist nouveau



> Symptoms are random freezes requiring a hardware reset, but always  
> involving

> some graphics operation. I can detect no other hardware malfunction, and  
> lockup

> behaviour is not characteristic of general hardware faults (eg ram, cpu,

> disk).



> My reset button is really polished now ;-((



> System details:

> openSUSE 11.4 with all updates installed,

> currently that is kernel kernel-desktop-2.6.37.6-0.5.1.x86_64

> xorg-x11-server-7.6_1.9.3-15.24.2.x86_64

> The problem seems worse with

> kernel-desktop-2.6.39.2-36.1.x86_64



> 01:00.0 VGA compatible controller: nVidia Corporation GT216 [GeForce GT  
> 220]

> (rev a2)



> Mobo is Gigabyte GA-880GA-UD3H with

> NB/SB: AMD 880G / SB850

> USB 2.0 + 3.0, SATA 3Gb + 6Gb (prob not relevant)

> The chipset also contains an integrated ATI Radeon HD 4250 (which works  
> fine on

> the OSS radeon driver, with the limits of the driver).

> Phenom II X6 1090T CPU


Delete nouveau.ko.

Using 3.0.4, this bug is very much still there (or at least the backgrace looks very similar). Happy to help provide more information or debug if pointed in the right direction.

(gdb) bt
#0  0x00007f5af04f3007 in ioctl ()
    at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f5aeea8f878 in drmIoctl (fd=9,
    request=1074291842, arg=0x7fff50cac510)
    at /usr/src/debug/x11-libs/libdrm-2.4.26/libdrm-2.4.26/xf86drm.c:167
#2  0x00007f5aeea91c2b in drmCommandWrite (
    fd=<optimized out>, drmCommandIndex=<optimized out>,
    data=<optimized out>, size=<optimized out>)
    at /usr/src/debug/x11-libs/libdrm-2.4.26/libdrm-2.4.26/xf86drm.c:2422
#3  0x00007f5aee44311d in nouveau_bo_wait (bo=0x1b75420,
    cpu_write=<optimized out>, no_wait=<optimized out>,
    no_block=<optimized out>)
    at /usr/src/debug/x11-libs/libdrm-2.4.26/libdrm-2.4.26/nouveau/nouveau_bo.c:390
#4  0x00007f5aee443703 in nouveau_bo_map_range (
    bo=0x1b75420, delta=0, size=<optimized out>, flags=4)
    at /usr/src/debug/x11-libs/libdrm-2.4.26/libdrm-2.4.26/nouveau/nouveau_bo.c:433
#5  0x00007f5aee64d2b5 in NVAccelDownloadM2MF (
    dst_pitch=3740, dst=0x2c96644 "", h=20, w=1,
    y=<optimized out>, x=237, pspix=0x29275f0)
    at /usr/src/debug/x11-drivers/xf86-video-nouveau-0.0.16_pre20110801/xf86-video-nouveau-0.0.16_pre20110801/src/nouveau_exa.c:132
#6  nouveau_exa_download_from_screen (pspix=0x29275f0,
    x=237, y=348, w=1, h=20, dst=0x2c96644 "",
    dst_pitch=3740)
    at /usr/src/debug/x11-drivers/xf86-video-nouveau-0.0.16_pre20110801/xf86-video-nouveau-0.0.16_pre20110801/src/nouveau_exa.c:386
#7  0x00007f5aed9f81ee in exaCopyDirty (
    migrate=<optimized out>, pValidDst=0x2927680,
    pValidSrc=0x2927690,
    transfer=0x7f5aee64cd80 <nouveau_exa_download_from_screen>, fallback_index=1, sync=0x7f5aed9f69b0 <exaWaitSync>)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/exa/exa_migration_classic.c:220
#8  0x00007f5aed9fac41 in exaPrepareAccessReg_mixed (
    pPixmap=0x29275f0, index=0, pReg=0x0)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/exa/exa_migration_mixed.c:254
#9  0x00007f5aeda061d0 in ExaPrepareCompositeReg (
    height=20, width=1, yDst=31, xDst=234, yMask=0,
    xMask=0, ySrc=0, xSrc=0, pDst=0x28a94e0, pMask=0x0,
    pSrc=0x28a9e20, op=57 '9', pScreen=<optimized out>)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/exa/exa_unaccel.c:600
#10 ExaCheckComposite (op=57 '9', pSrc=0x28a9e20,
    pMask=0x0, pDst=0x28a94e0, xSrc=0, ySrc=0, xMask=0,
    yMask=0, xDst=234, yDst=31, width=1, height=20)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/exa/exa_unaccel.c:625
#11 0x00007f5aeda02189 in exaComposite (op=57 '9',
    pSrc=0x28a9e20, pMask=0x0, pDst=0x28a94e0,
    xSrc=<optimized out>, ySrc=<optimized out>, xMask=0,
    yMask=0, xDst=<optimized out>, yDst=<optimized out>,
    width=1, height=20)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/exa/exa_render.c:1066
#12 0x00000000004db50a in damageComposite (op=57 '9',
    pSrc=0x28a9e20, pMask=0x0, pDst=0x28a94e0, xSrc=0,
    ySrc=0, xMask=0, yMask=0, xDst=234, yDst=31, width=1,
    height=20)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/miext/damage/damage.c:617
#13 0x000000000056b4a8 in miCompositeRects (op=57 '9',
    pDst=0x28a94e0, color=<optimized out>,
    nRect=<optimized out>, rects=0x29ebd84)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/render/mirect.c:168
#14 0x00000000004d47f3 in ProcRenderFillRectangles (
    client=0x2595fb0)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/render/render.c:1481
#15 0x0000000000431aa1 in Dispatch ()
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-serve---Type <return> to continue, or q <return> to quit---
r-1.10.4/dix/dispatch.c:431
#16 0x0000000000425a95 in main (argc=<optimized out>,
    argv=0x7fff50cacd48, envp=<optimized out>)
    at /usr/src/debug/x11-base/xorg-server-1.10.4/xorg-server-1.10.4/dix/main.c:287

(In reply to comment #61)
> Using 3.0.4, this bug is very much still there (or at least the backgrace looks
> very similar). Happy to help provide more information or debug if pointed in
> the right direction.
Any GPU hang etc will have similar backtraces from X's point of view, and it's not usually useful in itself to see what's happening.

Did you have any output in your kernel log from when this occurred?

(In reply to comment #62)
[...]
> Did you have any output in your kernel log from when this occurred?

There was no output after the initial module load messages.

(In reply to comment #63)
> (In reply to comment #62)
> [...]
> > Did you have any output in your kernel log from when this occurred?
> 
> There was no output after the initial module load messages.

Are you able to install envytools (http://nouveau.git.sourceforge.net/git/gitweb.cgi?p=nouveau/envytools;a=summary) and run "nvapeek 0x400700 4" while the GPU is hung?

Also, how new are all your userspace components (xf86-video-nouveau, libdrm, mesa etc)?

I experimented this bug not long ago - right now, Im not sure it is exactly the same, since it's not really random but it happens everytime I run Supertux.
I recovered the folloving kernel log lines rebooting from another partition after the freeze.

kernel 3.0.4, Arch Linux, x86_64, fully updated
nouveau-dri 7.11-2

lspci:

01:00.0 VGA compatible controller: nVidia Corporation GT215 [GeForce GT 240] (rev a2) (prog-if 00 [VGA controller])

kernel.log:


Sep 11 08:44:25 faye kernel: [ 1297.836589] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Sep 11 08:44:25 faye kernel: [ 1298.301418] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x00400000 - Ch 2
Sep 11 08:44:27 faye kernel: [ 1299.629024] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x04400000 - Ch 2
Sep 11 08:44:27 faye kernel: [ 1300.956673] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x04400000 - Ch 2
Sep 11 08:44:27 faye kernel: [ 1300.956719] psmouse.c: Wheel Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away.
Sep 11 08:44:29 faye kernel: [ 1302.284342] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x00400000 - Ch 2
Sep 11 08:44:29 faye kernel: [ 1299.632344] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5
Sep 11 08:44:31 faye kernel: [ 1302.960046] [drm] nouveau 0000:01:00.0: PGRAPH TLB flush idle timeout fail: 0x00c00f01 0x00000209 0x00001600 0x00000000
Sep 11 08:44:32 faye kernel: [ 1303.611794] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5
Sep 11 08:44:34 faye kernel: [ 1303.615050] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5
Sep 11 08:44:53 faye kernel: [ 1302.960046] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Sep 11 08:44:53 faye kernel: [ 1305.614198] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x00400000 - Ch 2
Sep 11 08:44:53 faye kernel: [ 1307.613341] [drm] nouveau 0000:01:00.0: PGRAPH TLB flush idle timeout fail: 0x00c00f01 0x00000209 0x00001600 0x00000000
Sep 11 08:44:53 faye kernel: [ 1310.944310] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5
Sep 11 08:44:53 faye kernel: [ 1307.613341] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Sep 11 08:44:53 faye kernel: [ 1314.940910] [drm] nouveau 0000:01:00.0: PRAMIN flush timeout
Sep 11 08:44:53 faye kernel: [ 1310.941070] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Sep 11 08:44:53 faye kernel: [ 1316.266913] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5
Sep 11 08:44:53 faye kernel: [ 1312.943555] [drm] nouveau 0000:01:00.0: PGRAPH TLB flush idle timeout fail: 0x00c00f01 0x00000209 0x00001600 0x00000000
Sep 11 08:44:53 faye kernel: [ 1312.943555] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Sep 11 08:44:55 faye kernel: [ 1318.264271] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x04c00000 - Ch 2
Sep 11 08:44:55 faye kernel: [ 1322.259717] psmouse.c: resync failed, issuing reconnect request
Sep 11 08:44:55 faye kernel: [ 1322.256898] [drm] nouveau 0000:01:00.0: PGRAPH TLB flush idle timeout fail: 0x00c00f01 0x00000209 0x00001600 0x00000000
Sep 11 08:44:55 faye kernel: [ 1322.256898] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Sep 11 08:44:55 faye kernel: [ 1323.596565] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x00400000 - Ch 2
Sep 11 08:44:55 faye kernel: [ 1326.270583] [drm] nouveau 0000:01:00.0: PRAMIN flush timeout
Sep 11 08:44:55 faye kernel: [ 1328.923088] hrtimer: interrupt took 2607527851 ns
Sep 11 08:44:55 faye kernel: [ 1328.923099] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x00c00000 - Ch 2
Sep 11 08:44:55 faye kernel: [ 1328.926536] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5

(In reply to comment #64)
> (In reply to comment #63)
> > (In reply to comment #62)
> > [...]
> > > Did you have any output in your kernel log from when this occurred?
> > 
> > There was no output after the initial module load messages.
> 
> Are you able to install envytools
> (http://nouveau.git.sourceforge.net/git/gitweb.cgi?p=nouveau/envytools;a=summary)
> and run "nvapeek 0x400700 4" while the GPU is hung?

All I get is a '...'.

> Also, how new are all your userspace components (xf86-video-nouveau, libdrm,
> mesa etc)?

mesa - 7.11
libdrm - 2.4.26
xf86-video-nouveau - 0.0.16_pre20110801 (that's the Gentoo package, which is presumably a snapshot from that date)

For what it's worth, kernel's 3.0.4, and the GPU is a 9400M (PCI id 10de:0863).

This bug was fixed in 2.6.39 ( http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=2b4cebe4e165b0ef30a138e4cf602538dea15583 ),
so I'm closing this bug report.

ColdFeetBob, Arun Raghavan: you are experiencing different bugs.
If you still can reproduce them please read http://nouveau.freedesktop.org/wiki/Bugs and open *new* bug reports. Thanks.