[Bug 54226] [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54226

--- Comment #110 from Jan Jurko <honza at linuxway.cz> ---
Hello. Same problem here.

[  485.443455] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[  485.443467] [drm] capturing error event; look for more information in
/sys/kernel/debug/dri/0/i915_error_state
[  485.452727] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0xa637000 ctx 1) at 0xa6371c8
[  821.726799] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[  821.726873] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x4974000 ctx 1) at 0x49741c8
[ 1311.134514] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
[ 1311.134613] [drm:i915_set_reset_status] *ERROR* render ring hung inside bo
(0x4a98000 ctx 1) at 0x4a98220

sys: fedora 19 64b
Linux jarvis 3.11.2-201.fc19.x86_64 #1 SMP Fri Sep 27 19:20:55 UTC 2013 x86_64
x86_64 x86_64 GNU/Linux

WM: KDE with effects enabled

8G ram
300G SATA HDD
ntb Lenovo ThinkPad E320

problem occurs in:
- scrolling in firefox
- playing video in vlc and switch to KDE terminal or another app
- sometimes system hangs, cpu 100%, freeze and hard reboot needed
- sometimes happens if I work with ff or in terminal only (very frustrating)
- happening across many kernel versions 3.0 to newest I think


lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family
DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series
Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family
USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 2 (rev b4)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 3 (rev b4)
00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 6 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family
USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC
Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family
6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus
Controller (rev 04)
02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor
Peak]
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI
Express Card Reader (rev 01)
03:00.1 SD Host controller: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express
Card Reader (rev 01)
08:00.0 Ethernet controller: Qualcomm Atheros AR8151 v2.0 Gigabit Ethernet (rev
c0)

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