[Nouveau] GPU lockup - switching to software fbcon

Tue Jun 17 08:38:56 PDT 2014

Oh, almost forgot, the video chip is:

01:00.0 VGA compatible controller: NVIDIA Corporation G72M [Quadro NVS
110M/GeForce Go 7300] (rev a1)

2014-06-17 17:04 GMT+02:00 Jesús J. Guerrero Botella <
jesus.guerrero.botella at gmail.com>:

> Hi.
>
> I am new to the listm so, first of all I'd like to say hello to everyone
> here in the list.
>
> I hope this list is an adequate place to post this; else, please, kindly
> direct me to the right list :)
>
> I write because I am having an issue with nouveau and mplayer. I have been
> only able to reproduce it with mplayer, but I think the issue lies in
> nouveau, either the kernel part or libdrm.
>
> The thing goes as follows:
>
> 1) I run "mplayer <random video file>", I have tried mkv and regular divx
> or mpeg video files, also youtube videos via the youtube-viewer tool, which
> uses mplayer as a backend to play youtube videos. The result is always the
> same, with independence of the video type.
>
> 2) The laptop seems to hang. However, I can still move the mouse. No
> element in the UI reacts though.
>
> 3) If I wait enough time, I am suddenly thrown out to the VT, the pc still
> seems quite laggy. Eventually, it recovers and I can write commands into
> the VT.
>
> 4) At the end of dmesg I can see by now this output:
>
> [  268.469736] nouveau E[     DRM] GPU lockup - switching to software fbcon
> [  283.487035] nouveau E[ X[2154]] failed to idle channel 0xcccc0001
> [X[2154]]
> [  298.487016] nouveau E[ X[2154]] failed to idle channel 0xcccc0001
> [X[2154]]
> [  313.487034] nouveau E[ X[2154]] failed to idle channel 0xcccc0000
> [X[2154]]
> [  328.487016] nouveau E[ X[2154]] failed to idle channel 0xcccc0000
> [X[2154]]
> [  343.587031] nouveau E[chrome[2279]] failed to idle channel 0xcccc0000
> [chrome[2279]]
> [  358.587019] nouveau E[chrome[2279]] failed to idle channel 0xcccc0000
> [chrome[2279]]
> [  373.589020] nouveau E[mplayer[2314]] failed to idle channel 0xcccc0000
> [mplayer[2314]]
> [  388.589031] nouveau E[mplayer[2314]] failed to idle channel 0xcccc0000
> [mplayer[2314]]
>
> 5) In the X log I can see this:
>
> (EE) [mi] EQ overflowing.  Additional events will be discarded until
> existing events are processed.
> (EE)
> (EE) Backtrace:
> (EE) 0: /usr/bin/X (xorg_backtrace+0x42) [0x592d42]
> (EE) 1: /usr/bin/X (mieqEnqueue+0x26b) [0x5741fb]
> (EE) 2: /usr/bin/X (0x400000+0x50fc2) [0x450fc2]
> (EE) 3: /usr/bin/X (xf86PostMotionEvent+0xc0) [0x489eb0]
> (EE) 4: /usr/lib64/xorg/modules/input/synaptics_drv.so
> (0x7ff5f046c000+0x535c) [0x7ff5f047135c]
> (EE) 5: /usr/lib64/xorg/modules/input/synaptics_drv.so
> (0x7ff5f046c000+0x6f32) [0x7ff5f0472f32]
> (EE) 6: /usr/bin/X (0x400000+0x7a087) [0x47a087]
> (EE) 7: /usr/bin/X (0x400000+0xa3518) [0x4a3518]
> (EE) 8: /lib64/libpthread.so.0 (0x7ff5f6f47000+0x10b10) [0x7ff5f6f57b10]
> (EE) 9: /lib64/libc.so.6 (ioctl+0x7) [0x7ff5f5c8e897]
> (EE) 10: /usr/lib64/libdrm.so.2 (drmIoctl+0x28) [0x7ff5f6d3f258]
> (EE) 11: /usr/lib64/libdrm.so.2 (drmCommandWrite+0x1b) [0x7ff5f6d4162b]
> (EE) 12: /usr/lib64/libdrm_nouveau.so.2 (nouveau_bo_wait+0x89)
> [0x7ff5f301b959]
> (EE) 13: /usr/lib64/xorg/modules/drivers/nouveau_drv.so
> (0x7ff5f3220000+0x7bb3) [0x7ff5f3227bb3]
> (EE) 14: /usr/lib64/xorg/modules/libexa.so (0x7ff5f2bdb000+0xbba0)
> [0x7ff5f2be6ba0]
> (EE) 15: /usr/bin/X (0x400000+0x183a73) [0x583a73]
> (EE) 16: /usr/bin/X (0x400000+0xc8dc0) [0x4c8dc0]
> (EE) 17: /usr/bin/X (0x400000+0x38eb8) [0x438eb8]
> (EE) 18: /usr/bin/X (0x400000+0x3bd2e) [0x43bd2e]
> (EE) 19: /usr/bin/X (0x400000+0x3faea) [0x43faea]
> (EE) 20: /lib64/libc.so.6 (__libc_start_main+0xf5) [0x7ff5f5bcdbf5]
> (EE) 21: /usr/bin/X (0x400000+0x2a541) [0x42a541]
> (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.
>
> =================================
>
> This is on Gentoo, with kernel 3.15.0 (but it also happened with 3.14.5.
> The arch is amd64. I am using nouveau 1.0.10, mesa 10.0.4, libdrm 2.4.52
> and (probably irrelevant) mplayer 1.1.1.
>
> The kernel is unpatched, from kernel.org (no Gentoo stuff nor anything
> like that).
>
> I have no idea how to start debugging this, so any pointer is welcome.
> Just for the sake of completeness, I have tried the nvidia blob and then it
> works without a problem. However I am not interested in using that. If
> nouveau fails I'd rather stick to vesa.
>
> Thanks for reading, and, please, forgive the long post. If you need some
> more info, please, feel free to ask and I will try to do my best. I can
> recompile anything and I can find my way around gdb as long as you tell me
> what to look for :)
>
> --
> Jesús Guerrero Botella
>

-- 
Jesús Guerrero Botella
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