[Bug 70497] New: GPU lockup CP stall for more than 10000msec

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=70497

          Priority: medium
            Bug ID: 70497
          Assignee: dri-devel at lists.freedesktop.org
           Summary: GPU lockup CP stall for more than 10000msec
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: brunojimen at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: git
         Component: Drivers/DRI/Radeon
           Product: Mesa

Hi,

I think I have found a bug in the radeon driver: after a random time using my
PC the screen turns to black and then I'm thrown back to the login screen, and
after I log in this happens again after a few moments.

Looking in my journals, I have found this at, more or less, the moment of the
problem:

kernel: radeon 0000:01:00.0: GPU lockup CP stall for more than 10000msec
kernel: radeon 0000:01:00.0: GPU lockup (waiting for 0x000000000000954e last
fence id 0x000000000000954d)
systemd-coredump[1999]: Process 240 (Xorg) dumped core.

Currently I am using Arch Linux with its mesa-git repo (everything upgraded).
My card is an AMD Radeon HD 5470.

This started happening after I change to the mesa-git repo, but not from the
begining of using it.

If there's anything I can do to help, just ask.

Thanks in advance!

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