4.2-rc7: mutex-related crash on boot (radeon?)

[Dave Airlie]

On 19 August 2015 at 00:28, Meelis Roos <mroos at linux.ee> wrote:
> Hi, I tried 4.2-rc7 and todays 4.2-rc7+git on a P4 PC with Intel 850
> chipset and old Radeon graphics. The machine crashes during boot and
> starts spamming dmesg as fast as it scrolls. Netconsole caught the
> dmesg. 4.1.0 worked fine.
>
> The first crash seems to be related to radeon_hotplug_work_func during
> radeon initialization.

Looks like a race at startup, I've sent a fix to dri-devel that should work.

Dave.