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

[bugzilla-daemon at freedesktop.org]

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 at lists.freedesktop.org
          Reporter: tethys at gmail.com
        QA Contact: xorg-team at lists.x.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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