Bug 80660

Created attachment 101956 [details]
/sys/class/drm/card0/error

X freezes in random time after boot.

Shortest record: 3 minute. Longest record: >3 hours.

It freezes about 10~20 seconds every time.

During freeze, the computer does not respond to any input, but the programs are still running in background (e.g. games still runs in the background with sound, movie are still playing).

After that, KDE will give a notification like "Desktop effect is reset since X is reset" (something similar to that, I am using Chinese locale and therefore cannot give exact words in English).

Some the words in the current window will be corrupted. This is most observable in Firefox, many of the words in the current tab will be corrupted and become unreadable. Refreshing the page doesn't help, but close and reopen Firefox will make it returns to normal.

The freeze will occur only once per boot. After a freeze, the system will run normally until the next boot.

Tried adding "i915.semaphores=1" in boot parameter and using UXA instead of SNA (according to https://wiki.archlinux.org/index.php/Intel_Graphics#X_freeze.2Fcrash_with_intel_driver), but these didn't help.

Tried standard kernel of Arch and CK-patched kernel, both will give freezes.

Attached are dmesg, /sys/class/drm/card0/error, and Xorg.0.log



OS: ArchLinux
Kernel: 3.14.9-1-ck (also tried the standard kernel)
CPU: Intel(R) Pentium(R) CPU G3220 @ 3.00GHz
VGA:

00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])
        Subsystem: ASRock Incorporation Device 0402
        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
        Interrupt: pin A routed to IRQ 40
        Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 4: I/O ports at f000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

$ Xorg -version                                                       :(

X.Org X Server 1.15.1
Release Date: 2014-04-13
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.14.0-4-ARCH x86_64 
Current Operating System: Linux nkdesktop 3.14.9-1-ck #1 SMP PREEMPT Thu Jun 26 16:51:42 EDT 2014 x86_64
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-linux-ck root=UUID=ba29dd77-421f-48ec-a6bd-0315156ed205 rw
Build Date: 14 April 2014  08:39:09AM
 
Current version of pixman: 0.32.4
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.


$ dmesg | grep drm
[    0.213645] [drm] Initialized drm 1.1.0 20060810
[    0.217515] [drm] Memory usable by graphics device = 2048M
[    0.217519] fb: conflicting fb hw usage inteldrmfb vs EFI VGA - removing generic driver
[    0.246446] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    0.246447] [drm] Driver supports precise vblank timestamp query.
[    0.383310] fbcon: inteldrmfb (fb0) is primary device
[    0.551364] i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
[    0.567277] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
[    1.708604] [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
[ 3775.985440] [drm] stuck on render ring
[ 3775.985449] [drm] GPU crash dump saved to 
[ 3775.985453] [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace.
[ 3775.985455] [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel
[ 3775.985457] [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue.
[ 3775.985460] [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it.
[ 3781.981957] [drm] stuck on render ring


Attached is /sys/class/drm/card0/error