Nouveau - Oct 2014 - [Bug 85100] New: Geforce GT730: X freezes during normal 2d operation.

https://bugs.freedesktop.org/show_bug.cgi?id=85100

            Bug ID: 85100
           Summary: Geforce GT730: X freezes during normal 2d operation.
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: nobody-freedesktop.org at nowhere.ws
        QA Contact: xorg-team at lists.x.org

Created attachment 107936
  --> https://bugs.freedesktop.org/attachment.cgi?id=107936&action=edit
Kernel Log

This is the version of software that I am running:

extra/mesa-dri 10.3.1-1
extra/xf86-video-nouveau 1.0.11-2
core/linux 3.16.4-1
extra/libdrm 2.4.58-1

The system has an integrated ATI GPU onboard which is not used and a PCIe
Geforce GT730 which is used in a dual head setup.

Occasionally, X will freeze during normal activity (no 3d, no video playback,
just some terminals)

Sometimes the mouse cursor is still movable for a few seconds, afterwards,
graphics is completely frozen up, the system is usually still pingable though.

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Geforce GT730: X freezes    |[NV108] Geforce GT730: X
                   |during normal 2d operation. |freezes during normal 2d
                   |                            |operation.

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
[   70.860202] nouveau E[   PFIFO][0000:02:00.0] PBDMA0: LBREQ
[   70.860218] nouveau E[   PFIFO][0000:02:00.0] PBDMA0: ch 2 [Xorg.bin[390]]
subc 5 mthd 0x0000 data 0x0000906e

I guess it's having trouble attaching the software object? Weird...

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--- Comment #2 from nobody-freedesktop.org at nowhere.ws ---
I am not familiar enough with nouveau to understand what exactly is happening
there.

However it might be interesting to add that it runs fine from a users
perspective while it is outputting these log messages every few seconds.

The freeze just happens at this point:
[  570.936213] nouveau E[   PFIFO][0000:02:00.0] write fault at 0x000029f000
[PTE] from GR/GPC0/PROP_0 on channel 0x007faed000 [Xorg.bin[390]]
[  570.936222] nouveau E[   PFIFO][0000:02:00.0] PGRAPH engine fault on channel
2, recovering...
[  570.937090] nouveau E[    PBUS][0000:02:00.0] MMIO read of 0x00000000 FAULT
at 0x000260 [ TIMEOUT ]
[  570.937104] nouveau E[    PBUS][0000:02:00.0] MMIO write of 0xbad0011e FAULT
at 0x000260 [ TIMEOUT ]
[  570.937447] nouveau E[    PBUS][0000:02:00.0] MMIO write of 0xbad0011f FAULT
at 0x000260 [ TIMEOUT ]

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--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
The 0x260 stuff isn't an issue... that register is just gone on the GK208
but
we're still writing to it. I think that 3.17 fixes that... if not, 3.18.

The engine faults aren't so great, however. The ones you pasted are from
PGRAPH, but the earlier stuff was in attaching the software object to the fifo.
The software object is used for vsync/page flipping handling, so failures with
it can account for perceived hangs.

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Martin Peres <martin.peres at free.fr> changed:

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

--- Comment #4 from Martin Peres <martin.peres at free.fr> ---
-- 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/140.

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