[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

GitLab Migration User  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |MOVED

--- Comment #32 from GitLab Migration User  ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1084.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #31 from Andrey Mazo  ---
I've started to get a slightly different crash with update to kernel 4.9.5
and/or newer Plasma.

It usually happens while unlocking the screen (enter password, hit enter, and
boom -- left monitor is black, right monitor is frozen with a mouse cursor
(well, a glitch instead of a normal cursor) moving).


x11-base/xorg-server-1.18.4
x11-drivers/xf86-video-nouveau-1.0.12
media-libs/mesa-12.0.1
x11-libs/libdrm-2.4.70
kde-plasma/plasma-workspace-5.8.3-r4
kde-frameworks/plasma-5.29.0


[94521.089913] DMAR: DRHD: handling fault status reg 2
[94521.089940] DMAR: [DMA Read] Request device [03:00.0] fault addr edb6
[fault reason 06] PTE Read access is not set
[94521.089947] DMAR: [DMA Read] Request device [03:00.0] fault addr edb6
[fault reason 06] PTE Read access is not set

[94521.090876] DMAR: [DMA Read] Request device [03:00.0] fault addr edba3000
[fault reason 06] PTE Read access is not set
[94521.090876] DMAR: [DMA Read] Request device [03:00.0] fault addr edba3000
[fault reason 06] PTE Read access is not set
[94521.096700] DMAR: DRHD: handling fault status reg 500
[94521.096729] nouveau :03:00.0: fifo: write fault at 00029a7000 engine 15
[PCE0] client 01 [PCOPY0] reason 02 [PAGE_NOT_PRESENT] on channel 0 [001fe72000
DRM]
[94521.096732] nouveau :03:00.0: fifo: ce0 engine fault on channel 0,
recovering...


Xorg.log has usual (in such cases) EQ overflow errors:
(EE) [mi] EQ overflowing.  Additional events will be discarded until existing
events are processed.
(EE)
(EE) Backtrace:
(EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x589af6]
(EE) 1: /usr/bin/X (mieqEnqueue+0x24b) [0x56bb6b]
(EE) 2: /usr/bin/X (QueuePointerEvents+0x52) [0x44dd22]
(EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fb450ad+0x623f)
[0x7fb450ad623f]
(EE) 4: /usr/lib64/xorg/modules/input/evdev_drv.so (0x7fb450ad+0x6acd)
[0x7fb450ad6acd]
(EE) 5: /usr/bin/X (0x40+0x750c8) [0x4750c8]
(EE) 6: /usr/bin/X (0x40+0x9a056) [0x49a056]
(EE) 7: /lib64/libc.so.6 (0x7fb45b99+0x331f0) [0x7fb45b9c31f0]
(EE) 8: /lib64/libc.so.6 (ioctl+0x5) [0x7fb45ba6fc75]
(EE) 9: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7fb45cb1dc68]
(EE) 10: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7fb45cb2098b]
(EE) 11: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0xbc) [0x7fb4578fd44c]
(EE) 12: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7fb457b02000+0xc5a7)
[0x7fb457b0e5a7]
(EE) 13: /usr/lib64/xorg/modules/drivers/nouveau_drv.so (0x7fb457b02000+0xcfed)
[0x7fb457b0efed]
(EE) 14: /usr/bin/X (DRI2SwapBuffers+0x1c8) [0x55cd68]
(EE) 15: /usr/bin/X (0x40+0x15e5ec) [0x55e5ec]
(EE) 16: /usr/bin/X (0x40+0x355bf) [0x4355bf]
(EE) 17: /usr/bin/X (0x40+0x39643) [0x439643]
(EE) 18: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7fb45b9b0790]
(EE) 19: /usr/bin/X (_start+0x29) [0x423939]
(EE)
(EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up
the stack.
(EE) [mi] mieq is *NOT* the cause.  It is a victim.
(EE) [mi] EQ overflow continuing.  100 events have been dropped.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #30 from Andrey Mazo  ---
(In reply to Ilia Mirkin from comment #29)
> Can someone see whether sticking
> 
> QSG_RENDER_LOOP=basic
> 
> into /etc/environment helps anything?

I could try, but looks like it's used by default already:

$ QT_LOGGING_RULES="qt.scenegraph.general=true" plasmawindowed
org.kde.plasma.systemmonitor.net
qt.scenegraph.general: QSG: basic render loop
qt.scenegraph.general: texture atlas dimensions: 1024x512
qt.scenegraph.general: R/G/B/A Buffers:8 8 8 8
qt.scenegraph.general: Depth Buffer:   24
qt.scenegraph.general: Stencil Buffer: 8
qt.scenegraph.general: Samples:-1
qt.scenegraph.general: GL_VENDOR:  nouveau
qt.scenegraph.general: GL_RENDERER:Gallium 0.4 on NVD9
qt.scenegraph.general: GL_VERSION: 3.0 Mesa 12.0.1
...


I don't know for sure, which one was used when I reported the problem
originally (comment 17) or when captured an apitrace (comment 23).
But I would guess, that it was the same based on the following [1]:
"""
The non-threaded render loop is currently used by default ... Linux with Mesa
drivers.
"""

[1]
http://doc.qt.io/qt-5/qtquick-visualcanvas-scenegraph.html#non-threaded-render-loops-basic-and-windows

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #29 from Ilia Mirkin  ---
Can someone see whether sticking

QSG_RENDER_LOOP=basic

into /etc/environment helps anything?

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #28 from sacarde  ---
hi,
   this is my experience in archlinux64 + kde + nouveau(1.0.13)

with:
 libdrm 2.4.73
 mesa 13.0.1
 qt5.* 5.7.0
 livxpm 3.5.11
 kdelibs 4.14.26
driver nouveau works OK

if I upgrade to:
 libdrm 2.4.74
 mesa 13.0.2
 qt5.* 5.7.1
 livxpm 3.5.12
 kdelibs 4.14.27
driver nouveau freeze


thank you

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Ilia Mirkin  changed:

   What|Removed |Added

 Depends on|98039   |


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=98039
[Bug 98039] KMail crash on starting (nouveau-related)
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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Tomasz Paweł Gajc  changed:

   What|Removed |Added

 Blocks||73373


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=73373
[Bug 73373] [NVE4] GPU lockup after opening many tabs in Chromium web browser
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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Tomasz Paweł Gajc  changed:

   What|Removed |Added

 Blocks||92515


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=92515
[Bug 92515] Virtualbox with 3D acceleration and with installed vbox-additions
crashes
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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Tomasz Paweł Gajc  changed:

   What|Removed |Added

 Blocks||97537


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=97537
[Bug 97537] nvc0 occasionally crashes in glDrawArrays in a
multi-threaded/multi-context app
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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Tomasz Paweł Gajc  changed:

   What|Removed |Added

 Blocks||92438


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=92438
[Bug 92438] Segfault in pushbuf_kref on nv50 when rendering from multiple
threads
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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Tomasz Paweł Gajc  changed:

   What|Removed |Added

 Depends on||98039

--- Comment #27 from Tomasz Paweł Gajc  ---
Seems like this is very related to #98039


Referenced Bugs:

https://bugs.freedesktop.org/show_bug.cgi?id=98039
[Bug 98039] KMail crash on starting (nouveau-related)
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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #26 from Tomasz Paweł Gajc  ---
More crashes
gru 10 13:39:25 lazur kernel: nouveau :01:00.0: fifo: DMA_PUSHER - ch 17
[plasmashell[8353]] get 0020208540 put 002020fc7c ib_get 006f ib_put
0070 state 80007698 (err: INVALID_CMD) push 00406040
gru 10 13:39:25 lazur kernel: nouveau :01:00.0: gr: DATA_ERROR 0005
[INVALID_ENUM]
gru 10 13:39:25 lazur kernel: nouveau :01:00.0: gr: 0010 [] ch 17
[001e50c000 plasmashell[8353]] subc 3 class 8297 mthd 15dc data 0100

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

Tomasz Paweł Gajc  changed:

   What|Removed |Added

Version|10.3|13.0

--- Comment #25 from Tomasz Paweł Gajc  ---
This issue still exists with latest x11-server 1.19.0 and Mesa 13.0.2 and
Plasma 5.8.4

I got this in logs:

gru 10 13:31:37 lazur kernel: nouveau :01:00.0: fifo: DMA_PUSHER - ch 17
[plasmashell[8353]] get 0020117b08 put 0020129744 ib_get 0059 ib_put
005a state 80007088 (err: INVALID_CMD) push 00406040
gru 10 13:31:40 lazur PackageKit[4860]: get-updates transaction /1645_dbadbbda
from uid 1001 finished with success after 3316ms
gru 10 13:31:41 lazur systemd-coredump[8355]: Failed to generate stack trace:
(null)
gru 10 13:31:41 lazur systemd-coredump[8355]: Process 8306 (plasmashell) of
user 1001 dumped core.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #24 from Andrey Mazo  ---
A similar fault and a deadlock that happened on newer kernel (4.7.2).
Looks like to be triggered by qupzilla (www-client/qupzilla-2.0.1, compiled
with KDE/Plasma 5 support) launch this time.
Could be a QtWebEngine problem though.

[838735.611662] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 000c data 003c
[838735.611680] nouveau :03:00.0: fifo: PBDMA0: 0200 [] ch 15
[001f68d000 qupzilla[12159]] subc 0 mthd 0020 data 
[838735.611694] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0030 data 003c
[838735.611707] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0034 data 20040360
[838735.611720] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0038 data 
[838735.611733] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 003c data 
[838735.611746] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0040 data 
[838735.611758] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0044 data 
[838735.611771] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0048 data 20010674
[838735.611784] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 004c data 003c
[838735.611798] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0054 data 
[838735.611811] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0058 data 00252000
[838735.611824] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 005c data 200240c7
[838735.611836] nouveau :03:00.0: fifo: PBDMA0: 0020 [ILLEGAL_MTHD] ch
15 [001f68d000 qupzilla[12159]] subc 0 mthd 0060 data 0048
[838735.611855] nouveau :03:00.0: fifo: read fault at 00 engine 07
[PFIFO] client 07 [BAR_READ] reason 02 [PAGE_NOT_PRESENT] on channel 15
[001f68d000 qupzilla[12159]]
[838735.611858] nouveau :03:00.0: fifo: fifo engine fault on channel 15,
recovering...

[838735.612309] =
[838735.612311] [ INFO: possible recursive locking detected ]
[838735.612314] 4.7.2-gentoo-20160906 #2 Not tainted
[838735.612315] -
[838735.612317] kworker/0:1/12138 is trying to acquire lock:
[838735.612319]  ((>recover.work)){+.+...}, at: []
flush_work+0x0/0x290
[838735.612329]
but task is already holding lock:
[838735.612331]  ((>recover.work)){+.+...}, at: []
process_one_work+0x14b/0x450
[838735.612336]
other info that might help us debug this:
[838735.612337]  Possible unsafe locking scenario:

[838735.612339]CPU0
[838735.612340]
[838735.612341]   lock((>recover.work));
[838735.612343]   lock((>recover.work));
[838735.612345]
 *** DEADLOCK ***

[838735.612347]  May be due to missing lock nesting notation

[838735.612349] 2 locks held by kworker/0:1/12138:
[838735.612351]  #0:  ("events"){.+.+.+}, at: []
process_one_work+0x14b/0x450
[838735.612356]  #1:  ((>recover.work)){+.+...}, at: []
process_one_work+0x14b/0x450
[838735.612360]
stack backtrace:
[838735.612363] CPU: 0 PID: 12138 Comm: kworker/0:1 Not tainted
4.7.2-gentoo-20160906 #2
[838735.612365] Hardware name: Dell Inc. Precision Tower 7910/0215PR, BIOS A06
01/19/2015
[838735.612371] Workqueue: events gf100_fifo_recover_work
[838735.612373]   8800750a7af0 b7567885
88082f22
[838735.612378]  b86fd780 8800750a7bb8 b73064c8
b86fd780
[838735.612381]  88082f220050 8800750a7b00 000268312189
0002
[838735.612385] Call Trace:
[838735.612391]  [] dump_stack+0x67/0x92
[838735.612396]  [] __lock_acquire+0x1508/0x1620
[838735.612399]  [] lock_acquire+0x60/0x80
[838735.612401]  [] ? mod_delayed_work_on+0x80/0x80
[838735.612403]  [] flush_work+0x47/0x290
[838735.612405]  [] ? mod_delayed_work_on+0x80/0x80
[838735.612408]  [] ? mark_held_locks+0x71/0x90
[838735.612414]  [] ? ktime_get+0x6a/0x130
[838735.612417]  [] gf100_fifo_fini+0x10/0x20
[838735.612420]  [] nvkm_fifo_fini+0x1a/0x30
[838735.612424]  [] nvkm_engine_fini+0x20/0x30
[838735.612429]  [] nvkm_subdev_fini+0x5a/0x160
[838735.612432]  [] gf100_fifo_recover_work+0xea/0x1f0
[838735.612434]  [] process_one_work+0x1aa/0x450
[838735.612436]  [] ? process_one_work+0x14b/0x450
[838735.612438]  [] 

[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #22 from Andrey Mazo  ---
(In reply to Karol Herbst from comment #21)
> > I tried to disable Network Monitor applet and to close the browser when
> > unused, and the system seems to survive longer (it's been almost 6 days of
> > uptime by now).
> > Not a solution, of course, but, at least, makes the system usable.
> 
> and maybe also tells us a fast way to reproduce.

Yeah, good point.
I'll try to run the applet under apitrace and reproduce the problem.

The system feels much better with the Network Monitor applet disabled -- it's
been 14 days of uptime now.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #21 from Karol Herbst  ---
(In reply to Andrey Mazo from comment #20)
> (In reply to Andrey Mazo from comment #19)
> > Looks like, I don't have the clock applet as you do, so for me, Network
> > Monitor and System Load Viewer applets are the only ones to update the
> > screen every second.
> 
> I tried to disable Network Monitor applet and to close the browser when
> unused, and the system seems to survive longer (it's been almost 6 days of
> uptime by now).
> Not a solution, of course, but, at least, makes the system usable.

and maybe also tells us a fast way to reproduce.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #20 from Andrey Mazo  ---
(In reply to Andrey Mazo from comment #19)
> Looks like, I don't have the clock applet as you do, so for me, Network
> Monitor and System Load Viewer applets are the only ones to update the
> screen every second.

I tried to disable Network Monitor applet and to close the browser when unused,
and the system seems to survive longer (it's been almost 6 days of uptime by
now).
Not a solution, of course, but, at least, makes the system usable.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #19 from Andrey Mazo  ---
(In reply to zoominee from comment #18)
> (In reply to Andrey Mazo from comment #17)
> > zoominee, have you tried disabling the system activity applet that you
> > suspected could trigger the issue?
> 
> If it's caused by an applet, it would be the clock in the top right corner,
> that's the only thing that updates the screen regularly...  But it seems
> that other larger-scale updates to the screen (e.g., processing pictures in
> the image processing program, or the weird scrolling thing I mentioned with
> the Opera and Vivaldi browsers) lead to this bug/freeze more quickly.

Looks like, I don't have the clock applet as you do, so for me, Network Monitor
and System Load Viewer applets are the only ones to update the screen every
second.

Will try to scroll web-pages in Opera like crazy while capturing an apitrace in
order to reproduce the problem.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #18 from zoominee  ---
(In reply to Andrey Mazo from comment #17)
> zoominee, have you tried disabling the system activity applet that you
> suspected could trigger the issue?

If it's caused by an applet, it would be the clock in the top right corner,
that's the only thing that updates the screen regularly...  But it seems that
other larger-scale updates to the screen (e.g., processing pictures in the
image processing program, or the weird scrolling thing I mentioned with the
Opera and Vivaldi browsers) lead to this bug/freeze more quickly.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #17 from Andrey Mazo  ---
I think, I'm also experiencing the same bug as described in comment 0.
(screen doesn't wake from a sleep after 2-3 days of uptime)

I'm also running Gentoo and have the following packages installed.
Linux version 4.4.6-gentoo-20160401 (root@localhost) (gcc version 4.8.5 (Gentoo
4.8.5 p1.3, pie-0.6.2) ) #1 SMP Fri Apr 1 15:03:40 EDT 2016
x11-base/xorg-server-1.17.4
x11-drivers/xf86-video-nouveau-1.0.12
media-libs/mesa-11.0.6
x11-libs/libdrm-2.4.65
kde-plasma/plasma-workspace-5.6.1
www-client/vivaldi-1.0.344.37_p1 (a chromium-based browser)

eselect qtgraphicssystem is set to native

(as far as I remember, kernel 4.5.0 wasn't able to show me anything on the
screen besides total garbage)

I'm ready to recompile the kernel with whatever debugging options you might
need to investigate the problem (increased CONFIG_NOUVEAU_DEBUG or any generic
kernel hacking options).

I'm also glad to capture an apitrace, but not sure of what.
plasmashell, X, a browser?


zoominee, have you tried disabling the system activity applet that you
suspected could trigger the issue?


Here is a part of my dmesg:
[190683.157049] nouveau :03:00.0: gr: TRAP ch 8 [001faea000
plasmashell[26949]]
[190683.157063] nouveau :03:00.0: gr: GPC0/TPC0/TEX: 8049
[190683.157082] nouveau :03:00.0: fifo: read fault at 0001115000 engine 00
[PGRAPH] client 01 [GPC0/TEX] reason 02 [PAGE_NOT_PRESENT] on channel 8
[001faea000 plasmashell[26949]]
[190683.157084] nouveau :03:00.0: fifo: gr engine fault on channel 8,
recovering...
[192882.157535] nouveau :03:00.0: fifo: PBDMA0: 0400 [] ch 2
[001fe71000 X[24266]] subc 0 mthd 001c data 1004
[192882.157807] nouveau :03:00.0: fifo: PBDMA0: 0400 [] ch 2
[001fe71000 X[24266]] subc 0 mthd 001c data 1004
[195081.297439] nouveau :03:00.0: fifo: PBDMA0: 0400 [] ch 2
[001fe71000 X[24266]] subc 0 mthd 001c data 1004
[195214.396093] [TTM] Failed to expire sync object before buffer eviction
[195229.455046] [TTM] Failed to expire sync object before buffer eviction


And after initiating reboot:
[197665.853048] nouveau :03:00.0: X[24266]: failed to idle channel 2
[X[24266]]
[197680.853033] nouveau :03:00.0: X[24266]: failed to idle channel 2
[X[24266]]
[197680.853119] nouveau :03:00.0: fifo: read fault at 01b000 engine 07
[PFIFO] client 07 [BAR_READ] reason 02 [PAGE_NOT_PRESENT] on channel 2
[001fe71000 X[24266]]
...
[197680.853150] =
[197680.853151] [ INFO: possible recursive locking detected ]
[197680.853152] 4.4.6-gentoo-20160401 #1 Not tainted
[197680.853153] -
[197680.853154] kworker/0:1/27582 is trying to acquire lock:
[197680.853155]  ((>fault)){+.+...}, at: []
flush_work+0x0/0x280
[197680.853162]
but task is already holding lock:
[197680.853163]  ((>fault)){+.+...}, at: []
process_one_work+0x144/0x430
[197680.853167]
other info that might help us debug this:
[197680.853168]  Possible unsafe locking scenario:

[197680.853169]CPU0
[197680.853169]
[197680.853170]   lock((>fault));
[197680.853171]   lock((>fault));
[197680.853172]
 *** DEADLOCK ***

[197680.853173]  May be due to missing lock nesting notation

[197680.853174] 2 locks held by kworker/0:1/27582:
[197680.853175]  #0:  ("events"){.+.+.+}, at: []
process_one_work+0x144/0x430
[197680.853178]  #1:  ((>fault)){+.+...}, at: []
process_one_work+0x144/0x430
[197680.853181]
stack backtrace:
[197680.853183] CPU: 0 PID: 27582 Comm: kworker/0:1 Not tainted
4.4.6-gentoo-hippo-20160401 #1
[197680.853184] Hardware name: Dell Inc. Precision Tower 7910/0215PR, BIOS A06
01/19/2015
[197680.853187] Workqueue: events gf100_fifo_recover_work
[197680.853189]   8803875bfaf0 a453193e
a572ac50
[197680.853191]  a572ac50 8803875bfbb0 a42fcbda
00010bc3ca5c
[197680.853193]  88083bcf6140  
0002442f617b
[197680.853195] Call Trace:
[197680.853198]  [] dump_stack+0x67/0x99
[197680.853201]  [] __lock_acquire+0x16fa/0x1b90
[197680.853202]  [] lock_acquire+0x60/0x80
[197680.853204]  [] ? mod_delayed_work_on+0x80/0x80
[197680.853206]  [] flush_work+0x47/0x280
[197680.853207]  [] ? mod_delayed_work_on+0x80/0x80
[197680.853210]  [] ? nvkm_subdev_fini+0x46/0x1f0
[197680.853212]  [] ? mark_held_locks+0x66/0x90
[197680.853214]  [] ? ktime_get+0x6a/0x110
[197680.853216]  [] gf100_fifo_fini+0x10/0x20
[197680.853217]  [] nvkm_fifo_fini+0x1a/0x30
[197680.853219]  [] nvkm_engine_fini+0x20/0x30
[197680.853220]  [] nvkm_subdev_fini+0x5f/0x1f0
[197680.853222]  [] gf100_fifo_recover_work+0xee/0x200
[197680.853224]  [] process_one_work+0x1a0/0x430
[197680.853225]  [] ? process_one_work+0x144/0x430
[197680.853227]  [] worker_thread+0x115/0x460
[197680.853230]  [] ? 

[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #16 from zoominee  ---
For information, the bug is still present. My package versions are now:
mesa 11.1.2
xorg-server 1.18.1
xf86-video-nouveau 1.0.12
linux kernel 4.4.2

I've noticed that, with the chrome-based browsers (Opera etc.) scrolling up and
down the page sometimes results in tear: the screen contains wide "columns" of
100 or so pixels that do not scroll and other columns that scroll up and down
normally.  Other windows and the desktop itself are unaffected.  When this
tearing happens, if I don't close the windows, the system freezes soon.  I
suspect that this is related to the bug I reported here.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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--- Comment #12 from zoominee  ---
Sorry for the delay, I was offline.

I've updated mesa to version 11.0.6 and xorg-server to 1.17.4. I've also
updated the linux kernel to 4.1.12.

When I replay the previous apitrace, it still freezes the graphics.  The mouse
pointer continues to work now (i.e., something has been changed), but nothing
else is updated, and I cannot switch from X to console either.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #13 from Ilia Mirkin  ---
(In reply to zoominee from comment #12)
> Sorry for the delay, I was offline.
> 
> I've updated mesa to version 11.0.6 and xorg-server to 1.17.4. I've also
> updated the linux kernel to 4.1.12.
> 
> When I replay the previous apitrace, it still freezes the graphics.  The
> mouse pointer continues to work now (i.e., something has been changed), but
> nothing else is updated, and I cannot switch from X to console either.

The fix in question should be in 4.1.13 (as well as a bunch of other stable
trees)... or did you apply the patch on top of 4.1.12 yourself?

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #14 from zoominee  ---
Regarding the kernel patch - I first wanted to see if the mesa update from
Comment 10 fixed this issue. (I suppose it did not.)

I then applied the patch from the Comment 11 (manually to 4.1.12). The problem
still persists.  The apitrace replays, then freezes somewhere (not at the same
place as before).  The mouse pointer still works, but I can't do anything and
nothing else on the screen is updated, I can't even change to console.

Do I maybe have to generate a new apitrace (i.e., the problem is stored in the
apitrace file created using the old versions)?  Or maybe this is a different
problem from the one addressed in the patch?

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #11 from Ilia Mirkin  ---
Also you can try the patch at
http://cgit.freedesktop.org/~airlied/linux/commit/?h=drm-fixes=2a6c521bb41ce862e43db46f52e7681d33e8d771
which helped a bunch of people running plasmashell.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #10 from Ilia Mirkin  ---
I pushed out some fixes in Mesa 11.0.3 which affect resource lifetime tracking.
Can you try it to see if things got better?

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #9 from dmidge  ---
Hi zoominee,
Ooops, sorry. I thought it was the same one, because we have the same
application that crashes. Alright, I will file a new bug! Thanks! And sorry for
the inconvenience. Is there a way I can delete my previous post, to avoid
people to read it anymore, since it seems to be unrelated?

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #8 from zoominee  ---
Dear dmidge!  I think the error messages that you get (something about PGRAPH
and textures) are quite different from mine (something about PFIFO and the PGR
engine, whatever that may be...) - it probably makes more sense to file it as a
different bug instead of putting it into the same thread. Thanks!

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #7 from dmidge  ---
Hi everyone,

I can identify myself in this bug. As zoominee did, I reported a similar bug on
KDE forum: https://bugs.kde.org/show_bug.cgi?id=353292. There, you can access
the stacktrace (on an Archlinux system). You also have the dmesg messages.
There is a sample of what is displayed:
[251170.682470] nouveau E[  PGRAPH][:01:00.0] magic set 1:
[251170.682485] nouveau E[  PGRAPH][:01:00.0] 0x00408e04: 0x2008bf05
[251170.682494] nouveau E[  PGRAPH][:01:00.0] 0x00408e08: 0x00205640
[251170.682501] nouveau E[  PGRAPH][:01:00.0] 0x00408e0c: 0x4432
[251170.682509] nouveau E[  PGRAPH][:01:00.0] 0x00408e10: 0x5640
[251170.682515] nouveau E[  PGRAPH][:01:00.0] TRAP_TEXTURE - TP1:  FAULT
[251170.682531] nouveau E[  PGRAPH][:01:00.0] ch 9 [0x003f518000
plasmashell[503]] subc 3 class 0x8597 mthd 0x1b0c data 0x1000f010
[251170.682555] nouveau E[ PFB][:01:00.0] trapped read at 0x0020564000
on channel 0x0003f518 [plasmashell[503]] PGRAPH/TEXTURE/00 reason:
PAGE_NOT_PRESENT
[251170.683469] nouveau E[  PGRAPH][:01:00.0] magic set 1:
[251170.683476] nouveau E[  PGRAPH][:01:00.0] 0x00408e04: 0x2009bc05
[251170.683481] nouveau E[  PGRAPH][:01:00.0] 0x00408e08: 0x00205641
[251170.683485] nouveau E[  PGRAPH][:01:00.0] 0x00408e0c: 0x4432
[251170.683490] nouveau E[  PGRAPH][:01:00.0] 0x00408e10: 0x5640
[251170.683493] nouveau E[  PGRAPH][:01:00.0] TRAP_TEXTURE - TP1:  FAULT
[251170.683502] nouveau E[  PGRAPH][:01:00.0] ch 9 [0x003f518000
plasmashell[503]] subc 3 class 0x8597 mthd 0x1b0c data 0x1000f010
[251170.683513] nouveau E[ PFB][:01:00.0] trapped read at 0x0020564100
on channel 0x0003f518 [plasmashell[503]] PGRAPH/TEXTURE/00 reason:
PAGE_NOT_PRESENT
[251170.683543] nouveau E[  PGRAPH][:01:00.0] magic set 1:
[251170.683555] nouveau E[  PGRAPH][:01:00.0] 0x00408e04: 0x2009610f
[251170.683560] nouveau E[  PGRAPH][:01:00.0] 0x00408e08: 0x00205734
[251170.683565] nouveau E[  PGRAPH][:01:00.0] 0x00408e0c: 0x4432
[251170.683570] nouveau E[  PGRAPH][:01:00.0] 0x00408e10: 0x5720
[251170.683574] nouveau E[  PGRAPH][:01:00.0] TRAP_TEXTURE - TP1:  FAULT
[251170.683586] nouveau E[  PGRAPH][:01:00.0] ch 9 [0x003f518000
plasmashell[503]] subc 3 class 0x8597 mthd 0x15f0 data 0x02000201
[251170.683599] nouveau E[ PFB][:01:00.0] trapped read at 0x0020573400
on channel 0x0003f518 [plasmashell[503]] PGRAPH/TEXTURE/00 reason:
PAGE_NOT_PRESENT
[251170.683632] nouveau E[  PGRAPH][:01:00.0] magic set 1:
[251170.683644] nouveau E[  PGRAPH][:01:00.0] 0x00408e04: 0x20086805
[251170.683650] nouveau E[  PGRAPH][:01:00.0] 0x00408e08: 0x00205890
[251170.683656] nouveau E[  PGRAPH][:01:00.0] 0x00408e0c: 0x4432
[251170.683662] nouveau E[  PGRAPH][:01:00.0] 0x00408e10: 0x5890
[251170.683667] nouveau E[  PGRAPH][:01:00.0] TRAP_TEXTURE - TP1:  FAULT
[251170.683680] nouveau E[  PGRAPH][:01:00.0] ch 9 [0x003f518000
plasmashell[503]] subc 3 class 0x8597 mthd 0x0900 data 0x2010
[251170.683698] nouveau E[ PFB][:01:00.0] trapped read at 0x0020589000
on channel 0x0003f518 [plasmashell[503]] PGRAPH/TEXTURE/00 reason:
PAGE_NOT_PRESENT

... and there is more there. Please see the attachment.

I can also add that it makes the plasmashell application hangs for a while,
with 100%CPU usage. After some time, the system is responsive again, with some
glitches in the interface (meaning, some icons disappearing or wrongly
displayed for instance. Once, it made the file explorer dolphin crash).

It has been identified by a problem with nouveau (I refer you to the comment 4
of the ticket, that gives better understanding of the problem):
https://bugs.kde.org/show_bug.cgi?id=353292#c4

Thank you for your time! And keep the good work going!
Cheers.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #5 from zoominee  ---
I upgraded the system to the following versions, and the bug is still present.

x11-drivers/xf86-video-nouveau-1.0.11
x11-base/xorg-server-1.17.2-r1
media-libs/mesa-11.0.0
x11-libs/libdrm-2.4.65
x11-base/xorg-drivers-1.17
Kernel: 4.0.5 (self-compiled)

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #6 from zoominee  ---
Information on graphics card from lspci -v:

02:00.0 VGA compatible controller: NVIDIA Corporation GK208 [GeForce GT 640
Rev. 2] (rev a1) (prog-if 00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. GK208 [GeForce GT 640 Rev. 2]
Flags: bus master, fast devsel, latency 0, IRQ 27
Memory at df00 (32-bit, non-prefetchable) [size=16M]
Memory at d000 (64-bit, prefetchable) [size=128M]
Memory at dc00 (64-bit, prefetchable) [size=32M]
I/O ports at ec00 [size=128]
Expansion ROM at def8 [disabled] [size=512K]
Capabilities: [60] Power Management version 3
Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [78] Express Legacy Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [128] Power Budgeting 
Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024

Capabilities: [900] #19
Kernel driver in use: nouveau

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #3 from zoominee  ---
(In reply to Ilia Mirkin from comment #1)
> An apitrace is really the only way this sort of issue will be debugged. If
> you can't share the trace due to privacy, please try to recreate the issue
> without private content. You can upload a large file to e.g. google drive.
> 
> A number of people are having issues with plasmashell and nouveau.

OK, I'll try to recreate a trace with the background graphics off and doing
nothing on the screen. I think it's the applet that shows current system
activity which causes this behaviour (or maybe it's the clock display).

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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--- Comment #2 from zoominee  ---
Created attachment 118402
  --> https://bugs.freedesktop.org/attachment.cgi?id=118402=edit
VBIOS dump

VBIOS dump acquired using the /sys method.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #1 from Ilia Mirkin  ---
An apitrace is really the only way this sort of issue will be debugged. If you
can't share the trace due to privacy, please try to recreate the issue without
private content. You can upload a large file to e.g. google drive.

A number of people are having issues with plasmashell and nouveau.

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[Nouveau] [Bug 92077] nouveau graphics freeze when using KDE Plasma 5; PGR engine fault

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https://bugs.freedesktop.org/show_bug.cgi?id=92077

--- Comment #4 from zoominee  ---
I generated a new apitrace without too much private content. It was about 155
MB, so I zipped it down to 77 MB. Because I couldn't attach that to this
report, I uploaded it to a free service, here's the link. Maybe it works.
http://www.uploadmb.com/dw.php?id=1442982871

The apitrace was generated with the versions mentioned in the bug's
Description.

I noticed that there is a newer mesa, so I will test (later) whether the
apitrace still results in the graphics freeze.

The dmesg output related to this graphics freeze captured in the new trace is
the following:

Sep 22 23:49:39 localhost kernel: nouveau E[   PFIFO][:02:00.0] read fault
at 0x000310e000 [PTE] from GR/GPC0/T1_1 on channel 0x003facd000
[plasmashell[2933]] 
Sep 22 23:49:39 localhost kernel: nouveau E[   PFIFO][:02:00.0] PGR engine
fault on channel 5, recovering...
Sep 22 23:49:39 localhost kernel: nouveau E[ PGR][:02:00.0] TRAP ch 5
[0x003facd000 plasmashell[2933]]
Sep 22 23:49:39 localhost kernel: nouveau E[ PGR][:02:00.0]
GPC0/TPC0/TEX: 0x8049
Sep 22 23:49:39 localhost kernel: nouveau E[ PGR][:02:00.0]
GPC0/TPC1/TEX: 0x8049

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