Created attachment 96978 [details] GPU Crash Dump GPU sporadically hangs during normal desktop usage, but recovers and a crash dump is created (see attached file). I'm using kernel 3.14.0 on Gentoo Linux with KDE Desktop. In my xorg.conf I have the option 'TearFree' enabled and disabled any tearing prevention mechanisms in the window manager (KWin).
It's the rcs flip dragon. This should be improved in recent kernels.
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(In reply to comment #1) > It's the rcs flip dragon. This should be improved in recent kernels. And in which kernel should this be fixed so I can download that one? "rcs flip dragon" on google didnt result in any kernel change log hit...
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Created attachment 98467 [details] Another crash dump Attaching my crash dump in case this is of interest. (initially attached to https://bugs.freedesktop.org/show_bug.cgi?id=76956) If this problem is fixed in recent kernels, it would be interesting to get a clear indication where (which package/version, at least which commit) it is fixed. This way people at Canonical can back-port this fix to one of the LTS supported kernel. Same for other distros I guess.
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Created attachment 98837 [details] Ubuntu 14.04 GPU dump Seen on Ubuntu 14.04: Linux moon 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
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Created attachment 99397 [details] GPU (Intel) crash dump Hi, The same thing is happening to me, also. Ubuntu 14.04, uname -a output: Linux misel-pc 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
(In reply to comment #11) > Created attachment 99397 [details] > GPU (Intel) crash dump > > Hi, > > The same thing is happening to me, also. Ubuntu 14.04, uname -a output: > Linux misel-pc 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 > x86_64 x86_64 x86_64 GNU/Linux No, it isn't. You want bug 54226.
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Created attachment 99940 [details] [review] [PATCH] drm/i915: Don't use RCS flips on gen7+ when multiple pipes are enabled This patch might fix the problem. It simply goes back to using BCS for all flips when multiple pipes are active.
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Ville, could you backport the patch to 3.14?
Created attachment 100213 [details] [review] i915-dont-use-rcs-on-gen7-for-3.14.patch Here's backport of Ville's patch for 3.14
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3.15.2 is also affected.
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commit 2a92d5bca1999b69c78f3c3e97b5484985b094b9 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Jul 8 10:40:29 2014 +0100 drm/i915: Disable RCS flips on Ivybridge We currently see random GPU hangs when using RCS flips with multiple pipes on Ivybridge. Now that we have mmio flips, we can fairly cheaply fallback to using CPU driven flips instead. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77104 Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Hi, Just got again the same bug report in dmesg, so for me the bug is NOT FIXED. This is on Ubuntu 14.04.1 LTS. Can someone here explain why this bug is marked FIXED, although there are still many reports showing it is not fixed? If this because of Ubuntu not being up-to-date, could you give some info about which package must be updated, to what version, etc?
Maybe it's fixed in upstream dev branch? I have Archlinux and I get the same thing on a daily basis.
(In reply to comment #50) > Maybe it's fixed in upstream dev branch? > > I have Archlinux and I get the same thing on a daily basis. Vote for this task: https://bugs.archlinux.org/task/41979
(In reply to comment #49) > Just got again the same bug report in dmesg, so for me the bug is NOT FIXED. > This is on Ubuntu 14.04.1 LTS. > > Can someone here explain why this bug is marked FIXED, although there are > still many reports showing it is not fixed? This is an upstream drm/i915 bug tracker, and the bug is fixed upstream. > If this because of Ubuntu not being up-to-date, could you give some info > about which package must be updated, to what version, etc? Please file bugs to your distros. Thanks.
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I filed a bug report for Ubuntu: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1384597
Upgrade kernel on 3.17 solve problem. THX.
can confirm upgrade kernel 3.17 fixes this issue.
(In reply to redwoz from comment #57) > can confirm upgrade kernel 3.17 fixes this issue. Not for me, though. I am running 3.17.1 + kde-5 and it complains when it starts OTOH this might never get fixed since this[1] guy don't want to work on intel bugs anymore :-( [1] http://mjg59.dreamwidth.org/32778.html
(In reply to Milan Hodoscek from comment #58) > OTOH this might never get fixed since this[1] guy don't want to work on > intel bugs anymore :-( All the credit to Matthew for everything he's done for Linux, but what you're saying is not just a little bit unfair in the drm/i915 context. He's got 10 commits in i915, last one from 2011. Not a single comment on i915 bugs in fdo bugzilla.
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I'm experiencing 2 to 3 hangs per week on Linux 3.18.1. That's pretty terrible if you ask me. Why is this bug marked as closed?
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The(In reply to Sven from comment #62) > I'm experiencing 2 to 3 hangs per week on Linux 3.18.1. That's pretty > terrible if you ask me. Why is this bug marked as closed? Same here on Arch with kernel 3.18.2 Where is the workaround/patch/anything?
It is fixed. If you still have a bug, it is not this.
(In reply to Chris Wilson from comment #65) > It is fixed. If you still have a bug, it is not this. Indeed, the bug is fixed in rc2 of kernel 3.19! I found it here: https://wiki.archlinux.org/index.php/Intel_graphics#GPU_hangs_with_Haswell.27s_and_Ivy_Bridge.27s_HD_Graphics Now the screen only flickering black but not freeze after installed kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.19-rc4-vivid/ I hope it helps better others than "it is not this".
(In reply to zamiere from comment #66) > I hope it helps better others than "it is not this". Because that is a different bug (bug 87759)... And had you opened a bug report and shown us the error state along with the usual log files I could have helped you.
(In reply to Chris Wilson from comment #67) > (In reply to zamiere from comment #66) > > I hope it helps better others than "it is not this". > > Because that is a different bug (bug 87759)... And had you opened a bug > report and shown us the error state along with the usual log files I could > have helped you. No. It was 83677. Nevermind. Intel driver is currently unusable slow and unstable, it was a waste of time.
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