* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
@ 2015-11-23 15:55 ` bugzilla-daemon
2015-11-23 20:58 ` [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3 bugzilla-daemon
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From: bugzilla-daemon @ 2015-11-23 15:55 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
--- Comment #1 from Andy Furniss <adf.lists@gmail.com> ---
Created attachment 120051
--> https://bugs.freedesktop.org/attachment.cgi?id=120051&action=edit
dmesg
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
2015-11-23 15:55 ` bugzilla-daemon
@ 2015-11-23 20:58 ` bugzilla-daemon
2015-11-25 10:04 ` bugzilla-daemon
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
Andy Furniss <adf.lists@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|Tonga faults and oopses on |Tonga faults and oopses on
|agd5f drm-fixes-4.4 |agd5f drm-fixes-4.4 since
| |fix incorrect mutex usage
| |v3
--- Comment #2 from Andy Furniss <adf.lists@gmail.com> ---
Unless I eventually manage to lock the one before - and I am failing to so far,
it looks like this starts with -
commit e284022163716ecf11c37fd1057c35d689ef2c11
Author: Christian König <christian.koenig@amd.com>
Date: Thu Nov 5 19:49:48 2015 +0100
drm/amdgpu: fix incorrect mutex usage v3
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
2015-11-23 15:55 ` bugzilla-daemon
2015-11-23 20:58 ` [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3 bugzilla-daemon
@ 2015-11-25 10:04 ` bugzilla-daemon
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From: bugzilla-daemon @ 2015-11-25 10:04 UTC (permalink / raw)
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
--- Comment #3 from Andy Furniss <adf.lists@gmail.com> ---
Seems this is the correct bad.
Ran all day yesterday without issue on the one before.
Booted into kernel set on the "bad" this morning and was locked within 10
minutes browsing.
Slightly different - no Oops, similar trace, rcu_preempt detected stalls on
CPUs/tasks.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
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From: bugzilla-daemon @ 2015-11-25 10:05 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
--- Comment #4 from Andy Furniss <adf.lists@gmail.com> ---
Created attachment 120106
--> https://bugs.freedesktop.org/attachment.cgi?id=120106&action=edit
Another trace
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
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2015-11-25 10:05 ` bugzilla-daemon
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To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
--- Comment #5 from Christian König <deathsimple@vodafone.de> ---
Well the good news first it looks like I can reproduce the issue.
Now the bad news is that I don't have the slightest idea what's causing it.
The patch you mentioned results in different timing around those functions, but
I can't see how it should cause something like this.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
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2015-11-26 9:39 ` bugzilla-daemon
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2015-12-13 10:33 ` bugzilla-daemon
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From: bugzilla-daemon @ 2015-12-02 13:18 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
Nicolai Hähnle <nhaehnle@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nhaehnle@gmail.com
--- Comment #6 from Nicolai Hähnle <nhaehnle@gmail.com> ---
Created attachment 120274
--> https://bugs.freedesktop.org/attachment.cgi?id=120274&action=edit
0001-drm-amdgpu-fix-race-condition-in-amd_sched_entity_pu.patch
Please try the attached patch. Thanks to Christian for pointing me at this bug
(I got lucky by running into a similar but cleaner stack trace...)
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
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2015-12-02 13:18 ` bugzilla-daemon
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2015-12-13 10:33 ` bugzilla-daemon
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From: bugzilla-daemon @ 2015-12-02 21:46 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
--- Comment #7 from Andy Furniss <adf.lists@gmail.com> ---
(In reply to Nicolai Hähnle from comment #6)
> Created attachment 120274 [details] [review]
> 0001-drm-amdgpu-fix-race-condition-in-amd_sched_entity_pu.patch
>
> Please try the attached patch. Thanks to Christian for pointing me at this
> bug (I got lucky by running into a similar but cleaner stack trace...)
Seems good so far, I'll stay on this kernel for a few days to be sure.
"Sure" may be a bit strong though, I said above powerplay was OK, but despite
being OK on it for several days in the past I managed to hit this bug on it
yesterday.
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^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 since fix incorrect mutex usage v3
2015-11-23 15:54 [Bug 93079] Tonga faults and oopses on agd5f drm-fixes-4.4 bugzilla-daemon
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2015-12-02 21:46 ` bugzilla-daemon
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From: bugzilla-daemon @ 2015-12-13 10:33 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=93079
Andy Furniss <adf.lists@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Andy Furniss <adf.lists@gmail.com> ---
Still seems good
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