[Bug 79696] New: 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

[Bug 79696] New: 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

          Priority: medium
            Bug ID: 79696
          Assignee: dri-devel@lists.freedesktop.org
           Summary: 10.2.0rc5 GPU stall & Xorg crash while using Geeqie
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: marti@juffo.org
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Drivers/Gallium/radeonsi
           Product: Mesa

Created attachment 100481
  --> https://bugs.freedesktop.org/attachment.cgi?id=100481&action=edit
gdm-Xorg:0.log

I'm using Arch Linux testing repositories with Mesa 10.2.0rc5

After a rather long session of browsing pictures using the Geeqie image viewer,
the display froze up, and after some time passed, Xorg crashed and restarted.
The new Xorg had GPU acceleration disabled. I had done a suspend & resume cycle
after the last boot, prior to the crash.

Versions:
ati-dri 10.2.0rc5
mesa 10.2.0rc5
xorg-server 1.15.1
kernel 3.14.4
xf86-video-ati 7.3.0

In the log files:
20:10:27 - resume from suspend
20:58:37 - kernel: 0000:01:00.0: GPU lockup CP stall for more than 10000msec
20:59:04 - Xorg: The kernel rejected CS, see dmesg for more information.
20:59:04 - Xorg segfault
20:59:05 - new Xorg: RADEON(0): Direct rendering disabled

Xorg backtrace:
0: /usr/bin/Xorg (xorg_backtrace+0x48) [0x584b08]
1: /usr/bin/Xorg (0x400000+0x1887f9) [0x5887f9]
2: /usr/lib/libpthread.so.0 (0x7fb78e9a4000+0xf4b0) [0x7fb78e9b34b0]
3: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x68b7c)
[0x7fb786f06b7c]
4: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x6b401)
[0x7fb786f09401]
5: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x48884)
[0x7fb786ee6884]
6: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x19ac9b)
[0x7fb787038c9b]
7: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x1a2dc8)
[0x7fb787040dc8]
8: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x1a530c)
[0x7fb78704330c]
9: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x13b8e4)
[0x7fb786fd98e4]
10: /usr/lib/xorg/modules/dri/radeonsi_dri.so (0x7fb786e9e000+0x13cc50)
[0x7fb786fdac50]
11: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x1e2a7) [0x7fb78b28b2a7]
12: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x1e892) [0x7fb78b28b892]
13: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x1f184) [0x7fb78b28c184]
14: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x1fc70) [0x7fb78b28cc70]
15: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x524c) [0x7fb78b27224c]
16: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x5b74) [0x7fb78b272b74]
17: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x6bb5) [0x7fb78b273bb5]
18: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x6e9a) [0x7fb78b273e9a]
19: /usr/bin/Xorg (miCopyRegion+0x1ad) [0x564f7d]
20: /usr/bin/Xorg (miDoCopy+0x456) [0x565506]
21: /usr/lib/libglamor.so.0 (0x7fb78b26d000+0x6edd) [0x7fb78b273edd]
22: /usr/bin/Xorg (0x400000+0x112258) [0x512258]
23: /usr/bin/Xorg (0x400000+0xced0a) [0x4ced0a]
24: /usr/bin/Xorg (0x400000+0xd02e8) [0x4d02e8]
25: /usr/bin/Xorg (0x400000+0x35c8e) [0x435c8e]
26: /usr/bin/Xorg (0x400000+0x39aaa) [0x439aaa]
27: /usr/lib/libc.so.6 (__libc_start_main+0xf0) [0x7fb78d611000]
28: /usr/bin/Xorg (0x400000+0x2507e) [0x42507e]

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

Marti Raudsepp <marti@juffo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |x86-64 (AMD64)
                 OS|All                         |Linux (All)

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #1 from Marti Raudsepp <marti@juffo.org> ---
Created attachment 100482
  --> https://bugs.freedesktop.org/attachment.cgi?id=100482&action=edit
kernel.log

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #2 from Michel Dänzer <michel@daenzer.net> ---
It might be worth getting the PITCAIRN_mc2.bin microcode and trying a 3.15
kernel.

Does this happen with particular pictures or randomly?

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #3 from Marti Raudsepp <marti@juffo.org> ---
> Does this happen with particular pictures or randomly?

I haven't tried to reproduce it yet, I will try to find the time for it.

> It might be worth getting the PITCAIRN_mc2.bin microcode and trying a 3.15 kernel.

I guess once I've managed to reproduce it, otherwise we don't know if it fixes
anything.

PITCAIRN_mc2.bin will be included with the kernel 3.15 firmware package right?

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #4 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to comment #3)
> > Does this happen with particular pictures or randomly?
> 
> I haven't tried to reproduce it yet, I will try to find the time for it.
> 
> > It might be worth getting the PITCAIRN_mc2.bin microcode and trying a 3.15 kernel.
> 
> I guess once I've managed to reproduce it, otherwise we don't know if it
> fixes anything.
> 
> PITCAIRN_mc2.bin will be included with the kernel 3.15 firmware package
> right?

It's available in the linuxfirmware tree:
http://git.kernel.org/cgit/linux/kernel/git/firmware/linux-firmware.git/commit/?id=4848a1e059de5aa723ff6627b90de8a5d9632626

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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--- Comment #5 from Marti Raudsepp <marti@juffo.org> ---
(In reply to comment #2)
> Does this happen with particular pictures or randomly?

Randomly. I can reproduce this pretty reliably now by enabling slideshow in
Geeqie, setting delay to 0.2s, letting it run for 15 mins or so. If you need
some more information about the crash, I can provide.

> It might be worth getting the PITCAIRN_mc2.bin microcode and trying a 3.15
> kernel.

Indeed, after upgrading to kernel 3.15rc8 and git firmware, I can no longer
reproduce the issue. It's been running without problems for 45 minutes now.

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--- Comment #6 from Marti Raudsepp <marti@juffo.org> ---
Just to be clear, there's still a bug in Xorg segfaulting, right? Should it be
able to survive GPU hangs?

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--- Comment #7 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #6)
> Just to be clear, there's still a bug in Xorg segfaulting, right? Should it
> be able to survive GPU hangs?

If you can get a gdb backtrace with debugging symbols for
/usr/lib/xorg/modules/dri/radeonsi_dri.so and /usr/lib/libglamor.so.0, we can
see what we can do. But realistically, it's not always possible to recover
gracefully from GPU hangs.

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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--- Comment #8 from Marti Raudsepp <marti@juffo.org> ---
Created attachment 100902
  --> https://bugs.freedesktop.org/attachment.cgi?id=100902&action=edit
gdb-backtrace2.txt

Here's a backtrace from a crashed Xorg (including "bt" and "bt full").

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[Bug 79696] 10.2.0rc5 GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #9 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #0)
> After a rather long session of browsing pictures using the Geeqie image
> viewer, the display froze up, and after some time passed, Xorg crashed and
> restarted. The new Xorg had GPU acceleration disabled.

(In reply to comment #8)
> Here's a backtrace from a crashed Xorg (including "bt" and "bt full").

Hmm. I think it should be possible to avoid that crash. However, given what you
said above, the X server won't be able to actually draw anything anymore. Would
that really be an improvement?

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--- Comment #10 from Marti Raudsepp <marti@juffo.org> ---
(In reply to comment #9)
> the X server won't be able to actually draw anything
> anymore. Would that really be an improvement?

I don't know, that's your call to make.

Other drivers like Intel's are capable of recovering from GPU hangs
(sometimes?) by resetting the hardware or whatnot. I wasn't sure whether Radeon
does or not.

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--- Comment #11 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to comment #10)
> (In reply to comment #9)
> > the X server won't be able to actually draw anything
> > anymore. Would that really be an improvement?
> 
> I don't know, that's your call to make.
> 
> Other drivers like Intel's are capable of recovering from GPU hangs
> (sometimes?) by resetting the hardware or whatnot. I wasn't sure whether
> Radeon does or not.

Radeon attempts to reset the hw as well.  It's not always successful.

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

Clemens Fruhwirth <clemens@endorphin.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |clemens@endorphin.org

--- Comment #12 from Clemens Fruhwirth <clemens@endorphin.org> ---
FYI I see a similar GPU stalls/display blanks with an upgrade from 10.1.4 ->
10.2.1. I am on Verde with VERDE_mc2.bin.

I started bisecting, but it takes me about a day to judge good vs bad, and as I
have around 1000 commits in front of me, this will take about 10 days.

I am also on Arch. xorg-server=1.15.1, xf86-video-ati=7.3.0. linux=3.15.2.

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--- Comment #13 from Marek Olšák <maraeo@gmail.com> ---
(In reply to comment #12)
> FYI I see a similar GPU stalls/display blanks with an upgrade from 10.1.4 ->
> 10.2.1. I am on Verde with VERDE_mc2.bin.
> 
> I started bisecting, but it takes me about a day to judge good vs bad, and
> as I have around 1000 commits in front of me, this will take about 10 days.
> 
> I am also on Arch. xorg-server=1.15.1, xf86-video-ati=7.3.0. linux=3.15.2.

Kernel 3.15 is indeed unstable on Cape Verde. We know where the problem is. If
kernel 3.14 doesn't hang the GPU for you, it's the same problem.

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--- Comment #14 from Clemens Fruhwirth <clemens@endorphin.org> ---
(In reply to comment #13)

> Kernel 3.15 is indeed unstable on Cape Verde. We know where the problem is.
> If kernel 3.14 doesn't hang the GPU for you, it's the same problem.

That doesn't correlate well with my testing:

3.14.x + 10.1.4 = stable
3.15.x + 10.1.4 = stable
3.14.x + 10.2.1 = unstable
3.15.x + 10.2.1 = unstable

I assume that it's something different :/

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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Marti Raudsepp <marti@juffo.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|10.2.0rc5 GPU stall & Xorg  |10.2.x GPU stall & Xorg
                   |crash while using Geeqie    |crash while using Geeqie

--- Comment #15 from Marti Raudsepp <marti@juffo.org> ---
(In reply to comment #12)
> FYI I see a similar GPU stalls/display blanks with an upgrade from 10.1.4 ->
> 10.2.1. I am on Verde with VERDE_mc2.bin.

What's the workload that causes this issue for you? Perhaps, if it's the same
bug, running Geeqie slideshow can reproduce it faster.

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--- Comment #16 from Clemens Fruhwirth <clemens@endorphin.org> ---
My most stable test case is unfortunately the Mathematica welcome screen. After
some 5 mins of work in Chrome followed by a couple of Mathematica restarts,
like 5-10, the lockup or segfault happens. Geeqie didn't do anything for me.

I haven't made any good progress with bisecting other than reconfirming that 

http://cgit.freedesktop.org/mesa/mesa/commit/?id=cb4ad1368551b64756c7b6e2007588e34739b188

fixes a segfault. This fix uncovers the lockup behavior.

Maybe apitrace is a way forward to generate something more testable.

Marek: Can you provide more information on the other known problem?

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--- Comment #17 from Marek Olšák <maraeo@gmail.com> ---
(In reply to comment #16)
> My most stable test case is unfortunately the Mathematica welcome screen.
> After some 5 mins of work in Chrome followed by a couple of Mathematica
> restarts, like 5-10, the lockup or segfault happens. Geeqie didn't do
> anything for me.
> 
> I haven't made any good progress with bisecting other than reconfirming that 
> 
> http://cgit.freedesktop.org/mesa/mesa/commit/
> ?id=cb4ad1368551b64756c7b6e2007588e34739b188
> 
> fixes a segfault. This fix uncovers the lockup behavior.

The commit fixes code which isn't used by radeonsi. I guess the bisection went
wrong.

> 
> Maybe apitrace is a way forward to generate something more testable.
> 
> Marek: Can you provide more information on the other known problem?

Kernel 3.15-rc1 and later locks up randomly. There is a memory corruption when
page tables are moved.

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #18 from Clemens Fruhwirth <clemens@endorphin.org> ---
(In reply to comment #17)
> (In reply to comment #16)
> > I haven't made any good progress with bisecting other than reconfirming that 
> > 
> > http://cgit.freedesktop.org/mesa/mesa/commit/
> > ?id=cb4ad1368551b64756c7b6e2007588e34739b188
> > 
> > fixes a segfault. This fix uncovers the lockup behavior.
> 
> The commit fixes code which isn't used by radeonsi. I guess the bisection
> went wrong.

That's sad to hear that my doubts in my test cases were not unfounded.

> > Marek: Can you provide more information on the other known problem?
> 
> Kernel 3.15-rc1 and later locks up randomly. There is a memory corruption
> when page tables are moved.

Please ping the bug when there is a fix I can try.

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #19 from Clemens Fruhwirth <clemens@endorphin.org> ---
I still see crashes linux-3.15.18 and ati-dri 10.2.5.

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #20 from Clemens Fruhwirth <clemens@endorphin.org> ---
I would appreciate an update to this bug as I am stuck on 10.1.4.

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #21 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #20)
> I would appreciate an update to this bug as I am stuck on 10.1.4.

I'm afraid bisecting is still the best bet. To avoid bisecting to a wrong
commit, make sure to wait long enough before declaring any commit good.

Also, if you can't test some commits because of the segfault fixed by
http://cgit.freedesktop.org/mesa/mesa/commit/?id=cb4ad1368551b64756c7b6e2007588e34739b188
, you can apply that manually for testing those commits.

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #22 from Michel Dänzer <michel@daenzer.net> ---
BTW, I assume Mesa 10.1.5/6 and the current Git 10.1 branch are not affected?

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

--- Comment #23 from Clemens Fruhwirth <clemens@endorphin.org> ---
(In reply to Michel Dänzer from comment #22)
> BTW, I assume Mesa 10.1.5/6 and the current Git 10.1 branch are not affected?

I tried my best to bisect it down, but the bisection over last month again was
unstable and took a long time to qualify a result, all in midst of other
software changes.

I say screw it, upgraded everything to latest stable, and no more lockups. From
my side, this bug can be closed.

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[Bug 79696] 10.2.x GPU stall & Xorg crash while using Geeqie

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https://bugs.freedesktop.org/show_bug.cgi?id=79696

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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