[Bug 196711] New: crashes after a while may monitor sleep not work

[Bug 196711] New: crashes after a while may monitor sleep not work

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=196711

            Bug ID: 196711
           Summary: crashes after a while may monitor sleep not work
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.10.0-28-generic
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: blocking
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: lorenzo.delana@gmail.com
        Regression: No

Created attachment 258023
  --> https://bugzilla.kernel.org/attachment.cgi?id=258023&action=edit
tar archive with txt of dumps

After a while, seems when monitor goes sleep, it hangs the system ( see
attached oops message ).

kernel BUG at
/build/linux-hwe-vH8Hlo/linux-hwe-4.10.0/drivers/gpu/drm/ttm/ttm_bo.c:206!

Kernel version:
Linux version 4.10.0-28-generic (buildd@lgw01-12) (gcc version 5.4.0 20160609
(Ubuntu 5.4.0-6ubuntu1~16.04.4) ) #32~16.04.2-Ubuntu SMP Thu Jul 20 10:19:48
UTC 2017

Attached tar archive with:
- kernel-bug.txt ( oops message )
- kernel-bug-cpuinfo.txt ( /proc/cpuinfo )
- kernel-bug-iomem.txt ( /proc/iomem )
- kernel-bug-ioports.txt ( /proc/ioports )
- kernel-bug-modules.txt ( /proc/modules )
- kernel-bug-packages.txt ( dpkg -l )
- kernel-bug-pci.txt ( lspci -vvv )

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