Bug 76173

Summary:	[NVAC] xbmc failure with vdpau enabled
Product:	Mesa	Reporter:	Martin Bednar <martin>
Component:	Drivers/DRI/nouveau	Assignee:	Nouveau Project <nouveau>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium	CC:	idl0r
Version:	10.3
Hardware:	x86-64 (AMD64)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	xbmc log excerpt with vdpau enabled xbmc stdout on first crash

Description Martin Bednar 2014-03-14 13:54:15 UTC

When using xbmc with vdpau acceleration enabled, I get a green screen (audio works), and this appears in the kernel log : 
nouveau E[   PFIFO][0000:03:00.0] DMA_PUSHER - ch 6 [xbmc.bin[22420]] get 0x00200f06c8 put 0x00200f0770 ib_get 0x000000db ib_put 0x000000dc state 0x80000000 (err: INVALID_CMD) push 0x00400040

Sometimes it makes xbmc crash completely.

This is on an nv50 (Chipset: MCP79/MCP7A (NVAC) ) : VGA compatible controller: NVIDIA Corporation ION VGA (rev b1)

Mesa 10.1
libdrm 2.4.52

It works all right using mplayer.
Just a wild guess : something to do with GL_NV_vdpau_interop?

If you need any more information, I'd be happy to provide it.

Comment 1 Martin Bednar 2014-03-14 13:55:10 UTC

Created attachment 95806 [details]
xbmc log excerpt with vdpau enabled

Comment 2 Ilia Mirkin 2014-03-14 13:59:41 UTC

Yep, it has to do with vdpau interop. I think that the DMA_PUSHER error is unrelated, but not sure. There were some patches to make it work better on nouveau, not sure if they made it to 10.1 -- try 10.2?

mplayer should work fine.

Comment 3 Martin Bednar 2014-03-14 14:59:49 UTC

Created attachment 95811 [details]
xbmc stdout on first crash

I just installed mesa from git [Mesa 10.2.0-devel (git-f9901f1)] and while the green display is gone, yet xbmc still crashes.

relevant dmesg output : 
Crash 1 : 
[106884.734647] nouveau E[xbmc.bin[31002]] multiple instances of buffer 10 on validation list
[106884.734665] nouveau E[xbmc.bin[31002]] validate_init
[106884.734673] nouveau E[xbmc.bin[31002]] validate: -22
[106884.739268] nouveau E[xbmc.bin[31002]] multiple instances of buffer 10 on validation list
[106884.739287] nouveau E[xbmc.bin[31002]] validate_init
[106884.739315] nouveau E[xbmc.bin[31002]] validate: -22

crash 2 : 
[107027.343245] nouveau E[  PGRAPH][0000:03:00.0] DATA_ERROR INVALID_BITFIELD
[107027.343270] nouveau E[  PGRAPH][0000:03:00.0]  DATA_ERROR
[107027.343290] nouveau E[  PGRAPH][0000:03:00.0] ch 5 [0x001f7f4000 xbmc.bin[31256]] subc 3 class 0x8397 mthd 0x1b0c data 0x00000004

Comment 4 Ilia Mirkin 2014-03-14 15:39:57 UTC

Does it work fine until it crashes, or does it crash too fast for you to tell?

Those errors are fairly non-sensical, at least the first, which leads me to believe that it's a fallout from sharing the screen among multiple contexts. There are lots of bugs in that area, it's something I plan on looking at over the weekend.

Comment 5 Martin Bednar 2014-03-14 17:44:03 UTC

(In reply to comment #4)
> Does it work fine until it crashes, or does it crash too fast for you to
> tell?

Yes, it seems to work fine. I got to watch a record 20 seconds of video, and it appeared to work fine. Mind you, it wasn't a FullHD video. I'm open to patch testing ;)

Comment 6 Martin Bednar 2015-01-10 09:45:55 UTC

Still happens with mesa 10.3 and xbmc 13.2. 
Any news?

Comment 7 GitLab Migration User 2019-09-18 20:39:12 UTC

-- GitLab Migration Automatic Message --

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

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