[Bug 105293] New: GPU HANG: ecode 9:0:0x85dffffb, in Xorg [804], reason: Hang on rcs0, action: reset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105293

            Bug ID: 105293
           Summary: GPU HANG: ecode 9:0:0x85dffffb, in Xorg [804], reason:
                    Hang on rcs0, action: reset
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: bbboson at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 137688
  --> https://bugs.freedesktop.org/attachment.cgi?id=137688&action=edit
gpu core dump

Hey!

Currently, I'm able to reproduce the GPU hang in 80% times.
The kernel I'm using is:
Linux madxps 4.15.6-1-ARCH #1 SMP PREEMPT Sun Feb 25 12:53:23 UTC 2018 x86_64
GNU/Linux                                                                       

The card i'm using is: 
VGA compatible controller: Intel Corporation Device 591b (rev 04)

The userspace process to trigger the issue is: well, emacs...
In fact I never met this issue before I compiling emacs with -march=native...
So with a emacs compiled with -march=native simply call emacs-helm may
reproduce it. (80% in my side. I know it's not easy to create the same
environment... But I could provide strace output if needed :-)

Both the dmesg and gpu core dump are attached. 

Thanks a lot in advance!

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