lockdep and ww mutex debug interactions in hdmi tests

[Maxime Ripard]

Hi,

On Wed, Oct 30, 2024 at 05:03:50AM +1000, Dave Airlie wrote:
> Hi,
> 
> I mentioned this internally, but wanted to get it on the list,
> 
> I ran the hdmi kunit tests with LOCKDEP and WW_MUTEX_SLOWPATH enabled
> and hit some issues.
> 
> With the slowpath we get the occasional EDEADLK to test the paths are
> doing things right, I think you should handle EDEADLK in the tests
> with a retry loop.

Thanks for the report, I've just sent a patch fixing this.

The vc4 have the same issue though, and I haven't been able to fix all
of them yet.

Maxime
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 273 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20241031/e4245a01/attachment.sig>