[Bug 85086] New: read/write faults leave machine unsuable

[Bug 85086] New: read/write faults leave machine unsuable

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

            Bug ID: 85086
           Summary: read/write faults leave machine unsuable
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: tethys-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 107921
  --> https://bugs.freedesktop.org/attachment.cgi?id=107921&action=edit
nouveau errors (from journalctl)

I came in this morning to find my machine at a text console, displaying
the following error:

Oct 15 20:57:55 localhost.localdomain kernel: nouveau E[Xorg[4149]] failed to
idle channel 0xcccc0000 [Xorg[4149]]
Oct 15 20:58:10 localhost.localdomain kernel: nouveau E[Xorg[4149]] failed to
idle channel 0xcccc0000 [Xorg[4149]]
Oct 15 20:58:15 localhost.localdomain kernel: nouveau E[   PFIFO][0000:01:00.0]
read fault at 0x0001e60000 [PTE] from CE2/GR_COPY on channel 0x007f8ef000
[unknown]

Possibly relevant things:

tet:~# uname -a
Linux tet.colet10.gambit 3.17.0 #9 SMP Mon Oct 13 16:26:23 BST 2014 x86_64
x86_64 x86_64 GNU/Linux

tet:~# lspci -v | sed -n '/VGA/,/^$/p'
01:00.0 VGA compatible controller: NVIDIA Corporation GK107 [NVS 510] (rev a1)
(prog-if 00 [VGA controller])
        Subsystem: NVIDIA Corporation Device 0967
        Flags: bus master, fast devsel, latency 0, IRQ 25
        Memory at f2000000 (32-bit, non-prefetchable) [size=16M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f0000000 (64-bit, prefetchable) [size=32M]
        I/O ports at e000 [size=128]
        Expansion ROM at f3000000 [disabled] [size=512K]
        Capabilities: [60] Power Management version 3
        Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Endpoint, MSI 00
        Capabilities: [b4] Vendor Specific Information: Len=14 <?>
        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
        Kernel modules: nvidiafb

tet:~# fgrep Monitor /var/log/Xorg.0.log
[    51.449] (**) |   |-->Monitor "<default monitor>"
[    51.714] (II) NOUVEAU(0): Monitor name: DELL U2713HM
[    51.748] (II) NOUVEAU(0): Monitor name: SDM-S205F/K
[    51.817] (II) NOUVEAU(0): Monitor name: DELL U2711

tet:~# rpm -qa | fgrep nouveau
xorg-x11-drv-nouveau-1.0.9-2.fc20.x86_64

tet:~# rpm -qa | fgrep mesa
mesa-libGL-10.1.5-1.20140607.fc20.i686
mesa-libglapi-10.1.5-1.20140607.fc20.x86_64
mesa-filesystem-10.1.5-1.20140607.fc20.x86_64
mesa-libglapi-10.1.5-1.20140607.fc20.i686
mesa-libGLU-9.0.0-5.fc20.x86_64
mesa-libgbm-10.1.5-1.20140607.fc20.x86_64
mesa-libGLES-10.1.5-1.20140607.fc20.x86_64
mesa-libwayland-egl-10.1.5-1.20140607.fc20.x86_64
mesa-dri-drivers-10.1.5-1.20140607.fc20.x86_64
mesa-libEGL-10.1.5-1.20140607.fc20.x86_64
mesa-libxatracker-10.1.5-1.20140607.fc20.x86_64
mesa-libgbm-10.1.5-1.20140607.fc20.i686
mesa-libGL-10.1.5-1.20140607.fc20.x86_64
mesa-libEGL-10.1.5-1.20140607.fc20.i686

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[Bug 85086] read/write faults leave machine unsuable

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

--- Comment #1 from tethys-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ---
Created attachment 107922
  --> https://bugs.freedesktop.org/attachment.cgi?id=107922&action=edit
xrandr output

The only option I had after the error was to reboot.

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[Bug 85086] read/write faults leave machine unsuable

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

--- Comment #2 from tethys-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ---
Created attachment 107925
  --> https://bugs.freedesktop.org/attachment.cgi?id=107925&action=edit
Screenshot

Possibly relevant. The on screen output seems to have converted what I
assume is a tab character into a checkerboard pattern.

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[Bug 85086] read/write faults leave machine unsuable

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

tethys-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #107925|text/plain                  |image/jpeg
          mime type|                            |

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[Bug 85086] read/write faults leave machine unsuable

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

--- Comment #3 from Tobias Klausmann <tobias.klausmann-AqjdNwhu20eELgA04lAiVw@public.gmane.org> ---
The first step to solve this would be a way to reproduce the problem. With this
you could bisect or test patches and make sure it does not happen again.

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[Bug 85086] [NVE7] read/write faults leave machine unsuable

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|read/write faults leave     |[NVE7] read/write faults
                   |machine unsuable            |leave machine unsuable

--- Comment #4 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
In an effort to reduce irrelevant information, you've cut out potentially
relevant things. Best to attach unredacted logs...

(a) Is this an optimus setup? If so, can you try booting with nouveau.runpm=0
[this will cause the nvidia card not to auto-suspend when not used]
(b) Please attach a full kernel log, from boot until the errors.

It would appear that the errors are brought on by a channel hang, from which
nouveau recovers in a... less-than-graceful fashion. This is, generally, a
known "issue" (more like 100 inter-related issues). However perhaps you can
update your userspace (specifically mesa), and whatever issue causes the hang
has been fixed in 10.3.1. Upgrading the ddx to 1.0.11 wouldn't hurt either.

As Tobias suggested, if you can identify an action that causes the issue, that
would be extremely helpful.

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[Bug 85086] [NVE7] read/write faults leave machine unsuable

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

--- Comment #5 from tethys-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org ---
Created attachment 107942
  --> https://bugs.freedesktop.org/attachment.cgi?id=107942&action=edit
Full boot log (from journalctl -k -b bootid)

It's been doing this for a while, and I'd been advised to try a newer
kernel as there had apparently been a fair amount of nouveau related
improvements. So I tried various -rc kernels and now the final 3.17.0
kernel. It seems (although I don't have enough data to be certain)
that it's improved things slightly in that the crashes seem less
frequent now. But it obviously still crashes.

Reproducing it is simply a matter of waiting. If I leave the machine
overnight, there's a reasonable chance that it'll be crashed when I
get back into work the following morning. In terms of specific
behaviour to trigger the crash, then no, I can't really give any
information other than that I leave the machine basically idle
overnight, running one of the less demanding screensavers from
xscreensaver (cubicgrid).

I don't think it's an optimus setup, but I'm not familiar enough with
the Nvidia product range to say for sure. It's a PCI GeForce card in
a desktop machine.

By upgrading the ddx, I'm assuming you mean the xorg-x11-drv-nouveau
package? I'm already at the latest distribution supplied version (as
I am for mesa), but I guess I could look at compiling it from source
if you think it might help.

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[Bug 85086] [NVE7] read/write faults leave machine unsuable

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

--- Comment #6 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
(In reply to tethys from comment #5)
> By upgrading the ddx, I'm assuming you mean the xorg-x11-drv-nouveau
> package? I'm already at the latest distribution supplied version (as
> I am for mesa), but I guess I could look at compiling it from source
> if you think it might help.

Right... but it'd be silly to chase bugs already resolved upstream. Distros
tend to be cautious with new versions, which makes sense if your starting
position is that things work. When things don't work, get the latest :)

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[Bug 85086] [NVE7] read/write faults leave machine unsuable

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https://bugs.freedesktop.org/show_bug.cgi?id=85086

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

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

--- Comment #7 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
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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/139.

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