[Bug 96588] [regression] [amdgpu] Errors scheduling IBs

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96588

            Bug ID: 96588
           Summary: [regression] [amdgpu] Errors scheduling IBs
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: mike at fireburn.co.uk

Hi

I've been seeing these errors in my kernel logs:

amdgpu 0000:01:00.0: couldn't schedule ib
[drm:amdgpu_job_run] *ERROR* Error scheduling IBs (-22)
[drm:amd_sched_main] *ERROR* Failed to run job!

I've bisected it down to:

a7c77c7fe5f659428e73d77aa4a8ac80b638daf3 is the first bad commit
commit a7c77c7fe5f659428e73d77aa4a8ac80b638daf3
Author: Christian König <christian.koenig at amd.com>
Date:   Wed Jun 15 13:44:05 2016 +0200

    drm/amdgpu: pipeline evictions as well

    This boosts Xonotic from 38fps to 47fps when artificially limiting VRAM to
    256MB for testing. It should improve all CPU bound rendering situations
    where we have a lot of swapping to/from VRAM.

    Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
    Signed-off-by: Christian König <christian.koenig at amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

:040000 040000 2fdfd546d7175759ed5f09bdec209f71d084ab1e
6b0cdbc8f42f4e3873e3bbdcc440336856073883 M      drivers

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