[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50 screen freeze

[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50 screen freeze

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https://bugzilla.kernel.org/show_bug.cgi?id=29022


Andrew Morton <akpm@linux-foundation.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |akpm@linux-foundation.org
          Component|Other                       |Video(DRI - non Intel)
         AssignedTo|other_other@kernel-bugs.osd |drivers_video-dri@kernel-bu
                   |l.org                       |gs.osdl.org
            Product|Other                       |Drivers




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[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50 screen freeze

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Rafael J. Wysocki <rjw@sisk.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |florian@mickler.org,
                   |                            |maciej.rutecki@gmail.com,
                   |                            |rjw@sisk.pl
             Blocks|                            |27352




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[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50 screen freeze

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https://bugzilla.kernel.org/show_bug.cgi?id=29022





--- Comment #4 from Marc <marc@osknowledge.org>  2011-02-15 04:38:51 ---
See also:

"Chris Clayton - System lockup with 2.6.38-rc4+"

on LKML

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[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50 screen freeze

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--- Comment #5 from Marc <marc@osknowledge.org>  2011-02-25 10:14:44 ---
I have the slight assumption that the problem is more often triggered with the
VirtualBox kernel modules loaded. I know that you guys consider this setup
'Tainted', however, it's a real-world setup that used to work.

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[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50 screen freeze

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https://bugzilla.kernel.org/show_bug.cgi?id=29022





--- Comment #6 from Marc <marc@osknowledge.org>  2011-03-05 09:46:50 ---
(In reply to comment #5)
> I have the slight assumption that the problem is more often triggered with the
> VirtualBox kernel modules loaded. I know that you guys consider this setup
> 'Tainted', however, it's a real-world setup that used to work.

This was not true. The beavior persists with -rc7. Screen will freeze _always_
after about 3 - 4 minutes with mesa-HEAD and xorg 1.10.0. 2.6.37 is fine.

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[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50/NVA8 screen freeze

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https://bugzilla.kernel.org/show_bug.cgi?id=29022


Marc <marc@osknowledge.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[REGRESSION? 2.6.38-rc4]    |[REGRESSION? 2.6.38-rc4]
                   |nouveau NV50 screen freeze  |nouveau NV50/NVA8 screen
                   |                            |freeze




--- Comment #7 from Marc <marc@osknowledge.org>  2011-03-05 09:55:56 ---
Hey, we have somthing in the logs:

Mar  5 09:57:44 marc kernel: [71218.224538] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP - Ch 4/5 Class 0x8597 Mthd 0x15e0 Data 0x00000000:0x00000000
Mar  5 09:57:44 marc kernel: [71218.224554] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 0: INVALID_OPCODE at 080000 warp 0, opcode
000033cc 00ffffff
Mar  5 09:57:44 marc kernel: [71218.224705] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP - Ch 4/5 Class 0x8597 Mthd 0x15e0 Data 0x00000000:0x00000000
Mar  5 09:57:44 marc kernel: [71218.224717] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 0: INVALID_OPCODE at 080000 warp 0, opcode
000033cc 00ffffff
Mar  5 09:57:44 marc kernel: [71218.224726] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 1: INVALID_OPCODE at 083008 warp 1, opcode
00f8f3e6 00f8f3e6
Mar  5 09:57:44 marc kernel: [71218.224899] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP - Ch 4/5 Class 0x8597 Mthd 0x15e0 Data 0x00000000:0x00000000
Mar  5 09:57:44 marc kernel: [71218.224911] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 0: INVALID_OPCODE at 080000 warp 0, opcode
000033cc 00ffffff
Mar  5 09:57:44 marc kernel: [71218.224921] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 1: INVALID_OPCODE at 083008 warp 1, opcode
00f8f3e6 00f8f3e6
Mar  5 09:57:44 marc kernel: [71218.224992] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP - Ch 4/5 Class 0x8597 Mthd 0x15e0 Data 0x00000000:0x00000000
Mar  5 09:57:44 marc kernel: [71218.225003] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 0: INVALID_OPCODE at 080000 warp 0, opcode
000033cc 00ffffff
Mar  5 09:57:44 marc kernel: [71218.225013] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP_EXEC - TP 0 MP 1: INVALID_OPCODE at 083008 warp 1, opcode
00f8f3e6 00f8f3e6
Mar  5 09:57:44 marc kernel: [71218.225162] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP - Ch 4/5 Class 0x8597 Mthd 0x15e0 Data 0x00000000:0x00000000
Mar  5 09:57:44 marc kernel: [71218.225168] [drm] nouveau 0000:01:00.0:
PGRAPH_TRAP_MP - TP0: Unhandled ustatus 0x00020000
Mar  5 09:58:11 marc kernel: [71246.831804] [drm] nouveau 0000:01:00.0:
nouveau_channel_free: freeing fifo 4
Mar  5 09:58:24 marc kernel: [71259.463319] [drm] nouveau 0000:01:00.0:
Allocating FIFO number 4
Mar  5 09:58:24 marc kernel: [71259.473828] [drm] nouveau 0000:01:00.0:
nouveau_channel_alloc: initialised FIFO 4

This, however, seems to be something different. When I reported the bug there
were no such logs. Maybe they just didn't get into kern.log or there are two
bugs.

If you need more info on something, please ask.

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[Bug 29022] [REGRESSION? 2.6.38-rc4] nouveau NV50/NVA8 screen freeze

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https://bugzilla.kernel.org/show_bug.cgi?id=29022


Lucas Stach <dev@lynxeye.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dev@lynxeye.de




--- Comment #8 from Lucas Stach <dev@lynxeye.de>  2011-03-05 10:16:01 ---
If this problem occurs on a NVA8 it's not an regression. NVA3+ have some random
lockups where nobody figured out why. So it never worked okay, although some
changes in the codebase could have made it more likely to trigger the lockup.

I strongly suspect the PGRAPH_TRAP is a unrelated bug, since we never saw
anything in the logs after random lockup.

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--- Comment #9 from Marc Koschewski <marc@osknowledge.org>  2011-03-06 11:42:29 ---
I updated the whole X11 stuff to current git and the problem seems to be gone.

I have the freezing kernel running for about 15 minutes now and tried anything
to make it freeze (composite WM, Firefox, several glxgears instances and
fullscreen terminals just doing some stuff to make it print a lot of text (like
cat'ing dmesg in loops)). Weird.

... but the workaround cannot be to upgrade X11 to HEAD. :)

Any hints on what one could do to track this down?

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--- Comment #10 from Marc Koschewski <marc@osknowledge.org>  2011-03-06 12:01:33 ---
OK, consider this as 'not said'. Just a second after I hit 'Commit' to send the
post the desktop froze. :/

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--- Comment #11 from Lucas Stach <dev@lynxeye.de>  2011-03-06 13:02:58 ---
Do you see this freeze on NVA8 only or also on other cards?

If it is only NVA8 there is nothing you can do, as nobody knows how to tackle
this bug. You may pary that Ben finds a way to reprodue so he can hopefully fix
this.

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--- Comment #12 from Marc Koschewski <marc@osknowledge.org>  2011-03-08 08:42:13 ---
I have no other card to test over here. :/

rc8 still fails to behave like 2.6.37. Is this really going to be rolled out?

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--- Comment #13 from Lucas Stach <dev@lynxeye.de>  2011-03-08 11:26:25 ---
This _is_ already rolled out, as no nouveau version so far didn't lock up
randomly on NVA8. It seems you were enormously lucky to not see them on .37.

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--- Comment #14 from Marc Koschewski <marc@osknowledge.org>  2011-03-08 12:46:01 ---
To be honest, I doubt _this_ is rolled out. The behavior might be there in
2.6.37 but in 2.6.38 it seems to be worse. With 2.6.37 I have some random
lock-ups leading to the GPU once in a month (I consider this normal, even as
NVidia itself has problems like this with their drivers). The recent 2.6.38-rc
kernels freeze actually after some minutes. And this can be reproduced.

But OK, since you seem to say that there's nothing we could do about it at this
point - as nobody seems to know a solution - what do we do with the bug report?
Close it? Sad to hear I won't be able to use the 2.6.38 release.

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--- Comment #15 from Florian Mickler <florian@mickler.org>  2011-03-08 15:36:50 ---
If you find the commit that made this worse it may hint at a solution or maybe
just reverting fixes things... so if you can use git bisect (man git-bisect),
please do so.

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--- Comment #16 from Lucas Stach <dev@lynxeye.de>  2011-03-08 15:40:44 ---
No please leave it open for now, just remove the regression flag. Also you
could add _full_ dmesg output and the versions of your userspace
(xf86-video-nouveau, x-server, libdrm and if installed mesa).

Dmesg after crash may also be interesting (hopefully we find something this
time, but I doubt it).

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Marc Koschewski <marc@osknowledge.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|27352                       |
         Regression|Yes                         |No




--- Comment #17 from Marc Koschewski <marc@osknowledge.org>  2011-03-08 20:38:46 ---
Removed from 'regressions' due to request and perhaps actual sense.

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--- Comment #18 from Marc Koschewski <marc@osknowledge.org>  2011-03-08 20:47:36 ---
Curently I'd already like to offer money for this to get fixed. Damn thing this
seems to be so tricky... :/

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--- Comment #19 from Marc Koschewski <marc@osknowledge.org>  2011-04-05 20:00:14 ---
nouveau.noaccel=1 'fixes' the issue. I have an uptime of 4 days now with
2.6.38.2 without any problem. But performance wise .... uhm.

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Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan@lxorguk.ukuu.org.uk
         Resolution|                            |OBSOLETE




--- Comment #20 from Alan <alan@lxorguk.ukuu.org.uk>  2012-08-15 22:15:55 ---
If this bug is still seen with 3.2/3.4+ kernels please re-open

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