[Bug 60955] New: [R600g] pyschonauts produces GPU lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60955

          Priority: medium
            Bug ID: 60955
          Assignee: dri-devel at lists.freedesktop.org
           Summary: [R600g] pyschonauts produces GPU lockup
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: lordheavym at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/Gallium/r600
           Product: Mesa

* Kernel 3.7.7
* mesa from git (git-34dc4d6) on AMD BARTS
* libdrm 2.4.42

Psychonauts locks the GPU in the intro, filling kernel log with:
févr. 16 15:45:13 archMain kernel: radeon 0000:01:00.0: GPU lockup CP stall for
more than 10000msec
févr. 16 15:45:13 archMain systemd-journal[206]: Forwarding to syslog missed 2
messages.
févr. 16 15:45:13 archMain kernel: radeon 0000:01:00.0: GPU lockup (waiting for
0x0000000000007bc4 last fence id 0x0000000000007ba4)
févr. 16 15:45:13 archMain kernel: radeon 0000:01:00.0: couldn't schedule ib
févr. 16 15:45:13 archMain kernel: [drm:radeon_cs_ib_chunk] *ERROR* Failed to
schedule IB !
févr. 16 15:45:13 archMain kernel: radeon 0000:01:00.0: couldn't schedule ib
févr. 16 15:45:13 archMain kernel: [drm:radeon_cs_ib_chunk] *ERROR* Failed to
schedule IB !

Apitrace can reproduce the lockup on my computer:
http://pkgbuild.com/~lcarlier/traces/Psychonauts.trace.tar.gz

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