[Bug 93765] New: Complete system freeze on resume wake up from suspend -- BUG: unable to handle kernel paging request at ffffc90402435ffc

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93765

            Bug ID: 93765
           Summary: Complete system freeze on resume  wake up from suspend
                    -- BUG: unable to handle kernel paging request at
                    ffffc90402435ffc
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: Driver/Radeon
          Assignee: xorg-driver-ati at lists.x.org
          Reporter: chris.tarazi at yahoo.com
        QA Contact: xorg-team at lists.x.org

Created attachment 121122
  --> https://bugs.freedesktop.org/attachment.cgi?id=121122&action=edit
These are the errors I find in the logs.

I'm running on a fresh install of openSUSE Leap 42.1 with a Radeon 6850 card
with default kernel (4.1.13-5) and open source drivers. The issue is when I
resume from suspend. After about 5 seconds of normal operation, the system just
hangs completely. I cannot switch ttys, but I can do ALT + PrntScrn + REISUB.
The only way to be able to use the machine is to do a full power cycle. 

I tried the latest kernel as of today for Leap 42.1 (4.4.0-3.1.g75554c0) and it
experiences the same problem, but even worse. The system hangs randomly at
anytime. 

I also have an Ubuntu 14.04.3 install on another partition with kernel
3.19.0.43 with fglrx drivers, and it also experiences the same issue.

I've attached parts of the relevant output from journalctl.

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