Bug 54179

Summary: [IVB bisected]"Hangcheck" when run etqw-demo on IVB
Product: Mesa Reporter: meng <mengmeng.meng>
Component: Drivers/DRI/i965Assignee: Kenneth Graunke <kenneth>
Status: VERIFIED FIXED QA Contact:
Severity: major    
Priority: high CC: idr
Version: git   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments: i915_error_state when run etqw-demo
dmesg when run etqw-demo
Xorg.0.log

Description meng 2012-08-29 02:53:46 UTC 
System Environment:       
--------------------------
Libdrm:   (master)libdrm-2.4.39-1
Mesa:     (master)971750e1cd76dabe22bf2ca83f07266837e3a2a6
Xf86_video_intel:(master)2.20.5-19
Xserver:  (master)xorg-server-1.12.99.905-9
Kernel:   (drm-intel-next-queued)d7c3b937bdf45f0b844400b7bf6fd3ed50bac604

Bug detailed description:
-----------------------------
"Hangcheck" in dmesg when run etqw-demo(ELF 32-bit) on IVB.
It's Mesa regression.
By bisceted,85e8e9e000732908b259a7e2cbc1724a1be2d447 is the first bad commit.
Please see the attachment i915_error_state,dmesg and Xorg.0.log.

commit 85e8e9e000732908b259a7e2cbc1724a1be2d447
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Fri Aug 24 01:22:58 2012 -0700

    i965: Use linker-assigned sampler IDs in instruction encoding.

Output on console:
------------------------------
removing GPU device /sys/devices/pci0000:00/0000:00:02.0/drm/card0 37221504
xf86: remove device 0 /sys/devices/pci0000:00/0000:00:02.0/drm/card0

Reproduce steps:
------------------------------
1. xinit&
2../etqw.x86 +set sys_VideoRam 32 +set r_mode -1 +set in_tty 0 +exec etqw-pts.cfg +set r_customWidth 800 +set r_customHeight 600 +vid_restart
Comment 1 meng 2012-08-29 02:54:33 UTC 
Created attachment 66257 [details]
i915_error_state when run etqw-demo
Comment 2 meng 2012-08-29 02:56:13 UTC 
Created attachment 66258 [details]
dmesg when run etqw-demo
Comment 3 meng 2012-08-29 02:56:56 UTC 
Created attachment 66259 [details]
Xorg.0.log
Comment 5 meng 2012-09-12 06:24:45 UTC 
Test Mesa(master)e81ee67b51651e with above two patches, etqw-demo can work well.
Comment 6 Kenneth Graunke 2012-09-13 05:49:31 UTC 
Pushed as commit 28f4be9eb91b12a2c6b1db6660cca71a98c486ec.  Fixed.
Comment 7 meng 2012-09-14 01:12:23 UTC 
Verified with the Mesa 28f4be9eb91b12a2c6b1db6660cca71a98c486ec, it works well.

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