Summary: | [855] Xserver freezing on Toshiba Satellite A10 | ||||||||||||||||||
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Product: | DRI | Reporter: | Geir Ove Myhr <gomyhr> | ||||||||||||||||
Component: | DRM/Intel | Assignee: | Default DRI bug account <dri-devel> | ||||||||||||||||
Status: | CLOSED FIXED | QA Contact: | |||||||||||||||||
Severity: | normal | ||||||||||||||||||
Priority: | medium | CC: | andrej, jane, moikkis | ||||||||||||||||
Version: | unspecified | ||||||||||||||||||
Hardware: | x86 (IA32) | ||||||||||||||||||
OS: | Linux (All) | ||||||||||||||||||
URL: | https://bugs.launchpad.net/bugs/477256 | ||||||||||||||||||
Whiteboard: | |||||||||||||||||||
i915 platform: | i915 features: | ||||||||||||||||||
Attachments: |
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Description
Geir Ove Myhr
2010-01-29 12:43:54 UTC
Created attachment 32911 [details]
batchbuffer dump with 2.6.33-rc5
Created attachment 32912 [details]
batchbuffer dump with kernel 2.6.32
Created attachment 32913 [details]
dmesg output
Created attachment 32914 [details]
Xorg.0.log
This looks like the CPU/GPU coherency issue with a twist. Both gpu dumps have recorded PGTBL_ERR=0x49, which is unusual. Those seem to be the unaligned fb issue, but there are several other preceding oopses in the dmesg as all. I'd like to see this bug confirmed on a recent kernel with i915_error_state capturing the batch buffer before declaring it to indeed be the same bug. Created attachment 33988 [details]
i915_error_state from intel-drm-next kernel
This one has PGTBL_ER: 0x00000000, so it may be different from the rest. Also, IPEHR doesn't match the instruction before the ACTHD address, so I guess this is another GPU/CPU incoherency hang.
Created attachment 33989 [details]
dmesg output from when i915_error_state was captured
Created attachment 33990 [details]
Xorg.0.log from when i915_error_state was captured
(In reply to comment #5) > This looks like the CPU/GPU coherency issue with a twist. Both gpu dumps have > recorded PGTBL_ERR=0x49, which is unusual. We have several automatic bug reports in ubuntu with PGTBL_ER=0x49, so it shouldn't be too unusual. https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/534108 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/534051 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/534002 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/533976 The first three are on i845 with 2.6.32 drm (which is what we have most bug reports from) and the last one is i855 on 2.6.31. I haven't seen it in on 2.6.33 drm or drm-intel-next yet. Another look: 0x077ac270: 0x7d8e0001: 3DSTATE_BUFFER_INFO 0x077ac274: 0x03800c40: color, tiling = fenced, pitch=3136 0x077ac278: 0x07af6000: address Old tiling bug. |
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