Nouveau - Feb 2014 - [Bug 75464] New: [nv4e] [vdpau] causes hangs

https://bugs.freedesktop.org/show_bug.cgi?id=75464

          Priority: medium
            Bug ID: 75464
          Assignee: nouveau at lists.freedesktop.org
           Summary: [nv4e] [vdpau] causes hangs
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: ronald645 at gmail.com
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/nouveau
           Product: xorg

I saw this on IRC:

10:59 #nouveau: < mupuf> ok
11:00 #nouveau: < blackiner> imirkin: i know you were messing around a bit
on
nv4x video decoding stuff a bit back, did you have any patches that would have
affected a nv43 recently?
11:00 #nouveau: < blackiner> just tried out arch on my other machine, any
vdpau
video seems to freeze the machine on it
11:01 #nouveau: < blackiner> but xv works fine
11:01 #nouveau: < imirkin> blackiner: there is no vdpau support for nv4x.
there
is xvmc support however.
11:01 #nouveau: < imirkin> blackiner: i do think that some distros
recently
started including libvdpau_nouveau.so though
11:01 #nouveau: < imirkin> which is probably why you've just started
seeing
issues
11:01 #nouveau: < blackiner> yeah it seems to install all the vdpau stuff
by
default
11:02 #nouveau: < imirkin> it's probably the case that vdpau is
somehow broken
for nv4x
11:02 #nouveau: < imirkin> there's definitely no video decoding
support in
there
11:02 #nouveau: < blackiner> I wonder if there is some init function
somewhere
where it should just tell vdpau: No, not possible, please go away
11:02 #nouveau: < imirkin> but the presentation layer probably tries to do
some
timing thing
11:02 #nouveau: < imirkin> and i've seen the timer stuff be broken on
nv4x
11:02 #nouveau: < imirkin> well, i added that for nv3x
11:03 #nouveau: < imirkin> (well, i added a requirement for NPOT textures)

And I saw this in my dmesg with flash:

[14826.835439] nouveau E[  PGRAPH][0000:00:05.0]  ERROR nsource: DATA_ERROR
nstatus: BAD_ARGUMENT
[14826.835480] nouveau E[  PGRAPH][0000:00:05.0] ch 3 [0x00056000
plugin-containe[15953]] subc 7 class 0x4497 mthd 0x020
8 data 0x00000120
[14826.835832] nouveau E[  PGRAPH][0000:00:05.0]  ERROR nsource: DATA_ERROR
nstatus: BAD_ARGUMENT
[14826.836292] nouveau E[  PGRAPH][0000:00:05.0] ch 3 [0x00056000
plugin-containe[15953]] subc 7 class 0x4497 mthd 0x020
8 data 0x00000120
[14826.836355] nouveau E[  PGRAPH][0000:00:05.0]  ERROR nsource: DATA_ERROR
nstatus: BAD_ARGUMENT
[14826.836973] nouveau E[  PGRAPH][0000:00:05.0] ch 3 [0x00056000
plugin-containe[15953]] subc 7 class 0x4497 mthd 0x0208 data 0x00000120
[14826.837046] nouveau E[  PGRAPH][0000:00:05.0]  ERROR nsource: DATA_ERROR
nstatus: BAD_ARGUMENT
[14826.837607] nouveau E[  PGRAPH][0000:00:05.0] ch 3 [0x00056000
plugin-containe[15953]] subc 7 class 0x4497 mthd 0x0208 data 0x00000120
[14826.837724] nouveau E[  PGRAPH][0000:00:05.0]  ERROR nsource: DATA_ERROR
nstatus: BAD_ARGUMENT
[14826.838284] nouveau E[  PGRAPH][0000:00:05.0] ch 3 [0x00056000
plugin-containe[15953]] subc 7 class 0x4497 mthd 0x0208 data 0x00000120

I think this issue crashed my machine as I was opening something in Youtube.
The relevant output was this:

feb 24 13:39:00 Charlie kernel: nouveau E[plugin-containe[28001]] failed to
idle channel 0xcccc0000 [plugin-containe[2
feb 24 13:39:15 Charlie kernel: [sched_delayed] sched: RT throttling activated
feb 24 13:39:15 Charlie kernel: nouveau E[plugin-containe[28001]] failed to
idle channel 0xcccc0000 [plugin-containe[2
feb 24 13:42:18 Charlie kernel: nouveau E[  X[832]] failed to idle channel
0xcccc0000 [X[832]]
feb 24 13:42:18 Charlie kernel: nouveau E[  X[832]] failed to idle channel
0xcccc0000 [X[832]]

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https://bugs.freedesktop.org/show_bug.cgi?id=75464

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
I think the right move here is to just disable nv4x in vdpau entirely until
somehow has time to take a look at what's going on. VDPAU doesn't
provide hw
decoding for nv4x anyways at this point, and the presentation stuff isn't
_that_ useful when you don't have the video decoding bits.

Unfortunately I'm not quite sure how to do that... should
vdpau-nouveau/target.c look at the returned screen, cast it to a nouveau_screen
and check the chipset? Not sure if that'd be considered an abstraction
violation. Also unsure what one could add to st/vdpau for this, as nv4x
_should_ be able to support the presentation bits of vdpau, it just...
doesn't.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jesus.guerrero.botella at gmai
                   |                            |l.com

--- Comment #2 from Ilia Mirkin <imirkin at alum.mit.edu> ---
*** Bug 80145 has been marked as a duplicate of this bug. ***

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--- Comment #3 from Nick Lee <nvlbox at gmail.com> ---
Causes hangs when I seeking (pressing key left/right in mpv) with this error:

13:16:53.084345 zotac kernel: nouveau 0000:03:00.0: Xwayland[2069]: failed to
idle channel 25 [Xwayland[2069]]
13:17:08.078712 zotac kernel: nouveau 0000:03:00.0: Xwayland[2069]: failed to
idle channel 25 [Xwayland[2069]]
13:17:08.085015 zotac kernel: nouveau 0000:03:00.0: mspdec: intr 00000040
13:17:08.085548 zotac kernel: nouveau 0000:03:00.0: fb: trapped read at
0000000000 on channel 25 [0daa8000 Xwayland[2069]] engine 01 [PVP] client 0c
[PVP] subclient 07 [] reason 0000000f [DMAOBJ_LIMIT]

mpv 0.27.2:
Using hardware decoding (vdpau).
VO: [vdpau] 1280x720 vdpau[yuv420p]
[vo/vdpau] Compositing window manager detected. Assuming timing info is
inaccurate.

NVIDIA Corporation C79 [GeForce 9300 / nForce 730i] (rev b1)

kernel-4.16.0-0.rc3.git2.1.vanilla.knurd.1.fc27.x86_64
mesa-17.3.6

this happens a long time ago.

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Martin Peres <martin.peres at free.fr> changed:

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

--- Comment #4 from Martin Peres <martin.peres at free.fr> ---
-- 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/xorg/driver/xf86-video-nouveau/issues/94.

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