[Bug 75813] New: [NV40] X hangs, system unresponsive

[Bug 75813] New: [NV40] X hangs, system unresponsive

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https://bugs.freedesktop.org/show_bug.cgi?id=75813

          Priority: medium
            Bug ID: 75813
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
           Summary: [NV40] X hangs, system unresponsive
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: marco-OrqDK/dsKCwdnm+yROfE0A@public.gmane.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: 7.7 (2011)
         Component: Driver/nouveau
           Product: xorg

Once every day or so my system practically hangs (gets extremely unresponsive;
X unusable; only SysRq magic working) while using Xorg with the nouveau driver
(version 1.0.10).

I am running Debian GNU/Linux testing (jessie) with

$ uname -r
3.13-1-amd64
$ lspci | grep VGA
05:00.0 VGA compatible controller: NVIDIA Corporation NV40 [GeForce 6800
GT/GTO/Ultra] (rev a2)

This problem did not occur when I ran Debian stable (with nouveau).

When the system (practically) hangs, I get messages like this:

... GPU lockup - switching to software fbcon
nouveau E [Xorg] failed to idle channel 0xcccc0000 [ ...

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[Bug 75813] [NV40] X hangs, system unresponsive

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https://bugs.freedesktop.org/show_bug.cgi?id=75813

--- Comment #1 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
Full dmesg would be great, esp the messages that led up to the GPU lockup. If
you have libvdpau_nouveau.so installed, try removing it, that has been reported
to cause issues on nv4x's.

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[Bug 75813] [NV40] X hangs, system unresponsive

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https://bugs.freedesktop.org/show_bug.cgi?id=75813

--- Comment #2 from Marco van Hulten <marco-OrqDK/dsKCwdnm+yROfE0A@public.gmane.org> ---
I am afraid that I have not saved the Xorg log with these messages (of the
crash).  Moreover, I have not experienced crashes since my bug report.

I had not installed libvdpau_nouveau.so, but I did have libvdpau.so as a
dependency of the mplayer2 package.  Is this the same thing?  I removed it and
after that reinstalled it.  Possibly the library is different from before,
since before I used the debian-multimedia repository which may have contained
this library, but not anymore since that repo has become obsolete for Debian.

I will report again when the problem returns.  If I will not report within two
weeks or so, we should close this bug report.

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[Bug 75813] [NV40] X hangs, system unresponsive

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https://bugs.freedesktop.org/show_bug.cgi?id=75813

--- Comment #3 from Marco van Hulten <marco-OrqDK/dsKCwdnm+yROfE0A@public.gmane.org> ---
Forget most of my previous message.  It now appears to be the case that I have
crashes in combination with certain kernel:

3.2.0-3-amd64    CRASH
3.7-trunk-amd64  no problem
3.12-1-amd64     CRASH
3.13-1-amd64     CRASH

As soon as I have an Xorg log with the error, I will post it here.

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[Bug 75813] [NV40] X hangs, system unresponsive

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https://bugs.freedesktop.org/show_bug.cgi?id=75813

--- Comment #4 from Marco van Hulten <marco-OrqDK/dsKCwdnm+yROfE0A@public.gmane.org> ---
Created attachment 95420
  --> https://bugs.freedesktop.org/attachment.cgi?id=95420&action=edit
xorg log (does not contain errors, but X became unusable)

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[Bug 75813] [NV40] X hangs, system unresponsive

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https://bugs.freedesktop.org/show_bug.cgi?id=75813

Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> changed:

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

--- Comment #5 from Martin Peres <martin.peres-GANU6spQydw@public.gmane.org> ---
-- 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/96.

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