[Intel-gfx] [PATCH igt 03/24] lib: Enable automatic ftrace dumping for suspend failures

Tue Aug 15 08:45:48 UTC 2017

On Mon, Aug 14, 2017 at 10:00:24PM +0100, Chris Wilson wrote:
> Quoting Chris Wilson (2017-08-14 21:18:27)
> > Supplement dmesg with the function call graph to try and help identify
> > why the suspend failed. On the other hand, it may be very noisy and
> > perturb the system due to its overhead...
> 
> And it appears ftrace is not stable enough to use across CI.
> Interesting.

Hm, should we instead have an --enable-ftrace flag for igt tests? Means we
need to do a manual run to capture the failures, but might be the better
balance ...
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch