Bug 18640

Lots of [mi] info in the log:
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.

*** Bug 18663 has been marked as a duplicate of this bug. ***

So the original report is with mouse_drv. It means we have a general problem in input handling in X in cooperation with dri?

I think Luc Verhaegen <libv@skynet.be> can explain best what the issue is here.

Does this happen only with EXA, and fine with XAA?

I can't say for sure, since it needs some time for this to happen, but it sure looks like it. With XAA enabled it hasn't happened to me.

THis is an EXA bug, with GEM its much worse.

We are seeing it all over the place on Fedora, rh BZ 470314

The mouse backtrace is just debugging info

I'm going to switch 945GM to vesa in F10 if we can't get this fixed.

the reporter of redhat #470314 is q35 (G965) not 945GM.

*** Bug 18537 has been marked as a duplicate of this bug. ***

*** Bug 18450 has been marked as a duplicate of this bug. ***

*** Bug 18406 has been marked as a duplicate of this bug. ***

*** Bug 18631 has been marked as a duplicate of this bug. ***

Created attachment 20905 [details]
Xorg log with backtrace

Same issue here. Complete Xorg log in attachment, abstracts here :
------------------------------------ 8< ------------------------------------
$ egrep 'EE|WW' /var/log/Xorg.0.log.old
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(II) Loading extension MIT-SCREEN-SAVER
(WW) intel(0): libpciaccess reported 0 rom size, guessing 64kB
(WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008 to 0xd0000009
(WW) intel(0): PP_STATUS before: on, ready, sequencing idle
(WW) intel(0): PP_STATUS after: on, ready, sequencing on
(WW) intel(0): Register 0x71024 (PIPEBSTAT) changed from 0x00000202 to 0x00000000
(WW) intel(0): PIPEBSTAT before: status: VSYNC_INT_STATUS VBLANK_INT_STATUS
(WW) intel(0): PIPEBSTAT after: status:
(WW) intel(0): ESR is 0x00000001, instruction error
(WW) intel(0): PRB0_CTL (0x0001f001) indicates ring buffer enabled
(WW) intel(0): Existing errors found in hardware state.
(EE) intel(0): underrun on pipe B!
------------------------------------ 8< ------------------------------------

------------------------------------ 8< ------------------------------------
[…]
[mi] EQ overflowing. The server is probably stuck in an infinite loop.

Backtrace:
0: /usr/bin/Xorg(xorg_backtrace+0x3b) [0x812bc5b]
1: /usr/bin/Xorg(mieqEnqueue+0x289) [0x810b379]
2: /usr/bin/Xorg(xf86PostMotionEventP+0xc2) [0x80d4262]
3: /usr/bin/Xorg(xf86PostMotionEvent+0x68) [0x80d43c8]
4: /usr/lib/xorg/modules/input//evdev_drv.so [0x192a8d]
5: /usr/bin/Xorg [0x80bcdb7]
6: /usr/bin/Xorg [0x80ac91e]
7: [0x110400]
8: [0x110416]
9: /lib/libc.so.6(ioctl+0x19) [0x298949]
10: /usr/lib/libdrm.so.2 [0x4ab16cf]
11: /usr/lib/libdrm.so.2(drmWaitVBlank+0x28) [0x4ab1e08]
12: /usr/lib/dri/i915_dri.so [0x5729e8]
13: /usr/lib/dri/i915_dri.so(driWaitForVBlank+0xd8) [0x572c08]
14: /usr/lib/dri/i915_dri.so(intelSwapBuffers+0x262) [0x582260]
15: /usr/lib/dri/i915_dri.so [0x572d82]
16: /usr/lib/xorg/modules/extensions//libglx.so [0x440504]
17: /usr/lib/xorg/modules/extensions//libglx.so [0x432cfe]
18: /usr/lib/xorg/modules/extensions//libglx.so [0x43663a]
19: /usr/bin/Xorg(Dispatch+0x34f) [0x8085e9f]
20: /usr/bin/Xorg(main+0x47d) [0x806b71d]
21: /lib/libc.so.6(__libc_start_main+0xe5) [0x1d36d5]
22: /usr/bin/Xorg [0x806ab01]
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[…]
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[…]
------------------------------------ 8< ------------------------------------

Hell, forgot hardware specs… Dell Latitude D620, dual screen config (ask xorg.conf if you think it's relevant).

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)

Fedora 10, BTW. Any workaround is welcome. ;-)

No issue since I have turned off compiz effects. Not sure it is related though, since problems occured mainly while I was playing with screen resolution and I'm not anymore. I'll keep effects off a few days, then if no bug turn them on again and see if it freezes again.

(In reply to comment #15)
> No issue since I have turned off compiz effects. Not sure it is related though,
> since problems occured mainly while I was playing with screen resolution and
> I'm not anymore. I'll keep effects off a few days, then if no bug turn them on
> again and see if it freezes again.

FYI, I have compiz turned off and I have hit this bug.

I encountered it a few seconds after login, no Compiz here either.

Backtrace:
0: /usr/bin/Xorg(xorg_backtrace+0x26) [0x4e7a26]
1: /usr/bin/Xorg(mieqEnqueue+0x291) [0x4c8591]
2: /usr/bin/Xorg(xf86PostMotionEventP+0xc4) [0x491494]
3: /usr/bin/Xorg(xf86PostMotionEvent+0xa9) [0x491669]
4: /usr/lib64/xorg/modules/input//synaptics_drv.so [0x3060832]
5: /usr/lib64/xorg/modules/input//synaptics_drv.so [0x3062de2]
6: /usr/bin/Xorg [0x47a765]
7: /usr/bin/Xorg [0x46b307]
8: /lib64/libc.so.6 [0x39edc32f60]
9: /lib64/libc.so.6(cfree+0x62) [0x39edc7a442]
10: /usr/lib64/libdrm_intel.so.1 [0x56a6428]
11: /usr/lib64/libdrm_intel.so.1 [0x56a6867]
12: /usr/lib64/libdrm_intel.so.1 [0x56a6ed5]
13: /usr/lib64/libdrm_intel.so.1 [0x56a705f]
14: /usr/lib64/xorg/modules/drivers//intel_drv.so(intel_batch_flush+0x7f)
[0x1fd73cf]
15: /usr/lib64/xorg/modules/drivers//intel_drv.so [0x1fe1fae]
16: /usr/bin/Xorg [0x51cdb9]
17: /usr/bin/Xorg [0x4f7311]
18: /usr/bin/Xorg(BlockHandler+0x50) [0x44a320]
19: /usr/bin/Xorg(WaitForSomething+0x161) [0x4e4eb1]
20: /usr/bin/Xorg(Dispatch+0x7f) [0x4465ef]
21: /usr/bin/Xorg(main+0x45d) [0x42cd1d]
22: /lib64/libc.so.6(__libc_start_main+0xe6) [0x39edc1e546]
23: /usr/bin/Xorg [0x42c0f9]
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.

The issue takes place with radeon driver also, not only with intel.

X.Org X Server 1.5.3
xserver-xorg-video-radeon 6.9.0+git20081129.783cdb73
libdrm2 2.4.1+git+20081116+930c0e7

Backtrace:
0: /usr/bin/X(xorg_backtrace+0x3b) [0x812f0fb]
1: /usr/bin/X(mieqEnqueue+0x289) [0x810e909]
2: /usr/bin/X(xf86PostKeyboardEvent+0xa7) [0x80d8c77]
3: /usr/lib/xorg/modules/input//evdev_drv.so [0xab55ceeb]
4: /usr/bin/X [0x80c1da7]
5: /usr/bin/X [0x80b1b5c]
6: [0xb7f1f400]
7: /usr/lib/xorg/modules/drivers//radeon_drv.so [0xb797ccb7]
8: /usr/lib/xorg/modules/drivers//radeon_drv.so [0xb797ce41]
9: /usr/lib/xorg/modules/drivers//radeon_drv.so [0xb79c7fab]
10: /usr/lib/xorg/modules//libexa.so [0xb77bfe8e]
11: /usr/lib/xorg/modules//libexa.so(exaComposite+0xb97) [0xb77c0c97]
12: /usr/bin/X [0x81722ca]
13: /usr/bin/X(CompositePicture+0x19a) [0x815acea]
14: /usr/bin/X(miGlyphs+0x3cf) [0x8156ecf]
15: /usr/bin/X [0x8172595]
16: /usr/bin/X(CompositeGlyphs+0xa2) [0x8157172]
17: /usr/bin/X [0x81629ae]
18: /usr/bin/X [0x815d8d5]
19: /usr/bin/X(Dispatch+0x34f) [0x808b79f]
20: /usr/bin/X(main+0x47d) [0x807143d]
21: /lib/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7b23455]
22: /usr/bin/X(FontFileCompleteXLFD+0x20d) [0x8070821]
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
...
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
[mi] mieqEnequeue: out-of-order valuator event; dropping.
[mi] EQ overflowing. The server is probably stuck in an infinite loop.
...

I'm being hit by this bug too.
For me, it's definitely more likely to happen when compiz is running, although, it does happen without compiz as well but more seldom.

Just FYI, I can recreate it pretty much at will running bzflag...with or without compiz.  switching from exa to xaa makes it go away.

Marking this as a dup, trying to reproduce on my Eee (the only 945 machine I have).

*** This bug has been marked as a duplicate of bug 17638 ***