Bug 33681

Summary: Random system lockup with KMS, Mobility Radeon HD3470
Product: DRI Reporter: Jaime Velasco Juan <jsagarribay>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: NEW --- QA Contact:
Severity: normal    
Priority: medium    
Version: XOrg git   
Hardware: x86-64 (AMD64)   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
kernel log
none
another kernel log
none
another kernel log
none
X log
none
lspci none

Description Jaime Velasco Juan 2011-01-29 02:18:19 UTC
Created attachment 42685 [details]
kernel log

The computer often locks itself, the panel suddenly loses the image (it sometimes blooms, or get filled with a solid color or a pattern of vertical white and grey stripes). I don't know how to trigger the bug, it can happen anytime, even with an idle system.

It has happened to me since I started using KMS, it was stable both with radeonHD and radeon drivers in UMS mode. The frequency of the problem has varied a lot; with the first KMS versions it happened a lot, then it seemed to be fixed with some kernel versions, but reappeared with others... As the problem is random, it can happen after a few minutes of uptime, or after some hours, or not happen at all.

At first, I thougth the kernel was completely dead, but I recently found out that I can use SysRq+S and SysRq+T to get some logs. If I try to reboot with SysRq+B the system locks fully and doesn't react to anything, I always have to do a hard reboot.

I'll attach lspci, one X log and three differen kernel logs.
Comment 1 Jaime Velasco Juan 2011-01-29 02:19:03 UTC
Created attachment 42686 [details]
another kernel log
Comment 2 Jaime Velasco Juan 2011-01-29 02:19:30 UTC
Created attachment 42687 [details]
another kernel log
Comment 3 Jaime Velasco Juan 2011-01-29 02:20:07 UTC
Created attachment 42688 [details]
X log
Comment 4 Jaime Velasco Juan 2011-01-29 02:20:35 UTC
Created attachment 42689 [details]
lspci

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