[Bug 91844] New: [HSW Regression] intel_do_flush_locked failed: Invalid argument

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91844

            Bug ID: 91844
           Summary: [HSW Regression] intel_do_flush_locked failed: Invalid
                    argument
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: andreas.reis at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 118041
  --> https://bugs.freedesktop.org/attachment.cgi?id=118041&action=edit
dmesg (2015y-09m-01d-10h-47m-22s), 4200U started with drm.debug=7

Getting said failure since a few days on 4200U and 4770, currently on
drm-intel-nightly: 2015y-09m-01d-10h-47m-22s. mesa, libdrm etc. are git
versions from today as well.

Basically any program (other than the first after boot, which always seems to
succeed) trying to use certain hardware acceleration has a high chance of
failing. It isn't consistent though, sometimes the programs run in later tries
just to fail again in yet further ones afterwards.

Specifically, I've seen it happen with Chrome, Steam and every mesa-demo I've
tried.

grepping the attacked dmesg for i915 yields in repetition:
[drm:i915_gem_open] 
[drm:i915_gem_context_create_ioctl] HW context 1 created
[drm:i915_parse_cmds] CMD: Command length exceeds batch length: 0x092C51B8
length=58 batchlen=22
[drm:i915_parse_cmds] CMD: batch set OACONTROL but did not clear it

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150902/cb94c409/attachment.html>