Comment 10 for bug 1108457

This is the result of the bisect. Unfortunately I had to skip some kernels because they wouldn't compile.

2099810f903caa1920f3ef6014fb7f36e4786490 is the first bad commit
commit 2099810f903caa1920f3ef6014fb7f36e4786490
Author: Dave Airlie <email address hidden>
Date: Tue Apr 3 11:53:05 2012 +0100

    drm/radeon: enable pci bus mastering after card is initialised (v2)

    This closes a race seen with kexec where we enable PCI bus mastering
    but the card has been reinitialised fully yet.

    This was previously fixed by a patch from Jerome, but this should
    close the race completely.

    v2: add SI support as suggested by Alex.

    Reported-and-tested-by: Markus Trippelsdorf <email address hidden>
    Signed-off-by: Dave Airlie <email address hidden>

:040000 040000 543c4ab332c9e62bf964d005f42e918160508777 73177e660b0ebca43b6a449bc208d7c8b00ab8c8 M drivers