[Intel-gfx] [PATCH 0/2] drmtest: Fix hanging child processes

[Daniel Vetter]

On Tue, Dec 03, 2013 at 04:44:53PM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> It was observed both on Linux and Android that tests which
> fork can sometimes hang failing to terminate child
> processes.
> 
> This was eventually tracked down to race conditions in C
> library implementations, all with regards to caching of
> PID/TGID and TID values.
> 
> Solution is to revert the previous workaround, which closed
> the race under glibc a bit, and ensure current values from
> the kernel are used during timing sensitive periods.
> 
> This was tested under Android only but should be a generic fix.
> 
> Tvrtko Ursulin (2):
>   Revert "lib/drmtest: ducttape over fork race"
>   drmtest: Avoid wrong PID/TID after clone races

Both merged, thanks for the patches.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch