Bug 23354 - M52 GPU hang and reset failed
Summary: M52 GPU hang and reset failed
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Radeon (show other bugs)
Version: XOrg git
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
Depends on:
Reported: 2009-08-16 15:01 UTC by Pauli
Modified: 2019-11-19 08:07 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

dmesg captured from terminal using ssh. (45.39 KB, text/plain)
2009-08-16 15:01 UTC, Pauli
no flags Details
lspci for hardware details. (23.18 KB, text/plain)
2009-08-16 15:24 UTC, Pauli
no flags Details
dmesg from 2nd hang (122.90 KB, text/plain)
2009-08-16 15:57 UTC, Pauli
no flags Details
all IB buffers dumped to single file (181.35 KB, text/plain)
2009-08-16 15:58 UTC, Pauli
no flags Details

Description Pauli 2009-08-16 15:01:06 UTC
Created attachment 28679 [details]
dmesg captured from terminal using ssh.

I was running modified version of mesa when I got GPU hang. (My changes may have broken state)

But effects of gpu hang were fatal:
-dmesg has message that radeon was trying to reset GPU
-ring test failed so reset failed
-dmesg is spammed with messages that scheduling IB failed
-whole computer is unresponsive localy
-open ssh connection works for only few commands (luckily dmesg did work)
-It seems like no disk access can happen after hang
-No new ssh connection are possible
-Old ssh connection did freeze soon so not much useful info there

After reboot logs didn't include any info from hang or after it.

I have seen before similar hang with M9+ card but no ssh connected then so no debug info.
Comment 1 Pauli 2009-08-16 15:24:27 UTC
Created attachment 28680 [details]
lspci for hardware details.

software details:
kernel is vanila 2.6.31-rc6
mesa master from yesterday with my patches applied+minor hacking
libdrm master 1d465178fbab77a9c
xf86-video-ati master cd99d9f0

PS. Afre ssh freeze I did try Sysrq+S,K,R and Then just B. Nothing did happend to first 3 but reboot worked.
Comment 2 Pauli 2009-08-16 15:57:45 UTC
Created attachment 28681 [details]
dmesg from 2nd hang

ok. I can reproduce this hang with my broken mesa.

This time I got IB info over ssh before I lost control.
Comment 3 Pauli 2009-08-16 15:58:39 UTC
Created attachment 28682 [details]
all IB buffers dumped to single file
Comment 4 Martin Peres 2019-11-19 08:07:50 UTC
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