[PATCH] drm/amd/display: Fix error handling on waiting for completion

[Simon Ser]

On Tuesday, October 26th, 2021 at 18:03, Kazlauskas, Nicholas <nicholas.kazlauskas at amd.com> wrote:

> If it's just an error in the log without a functional issue then maybe
> we should downgrade it to a debug statement in the case where it returns
> -ERESTARTSYS.
>
> If this is a functional issue (DRM not automatically retrying the
> commit?) then maybe we should take a deeper look into the IOCTL itself.

libdrm handles EINTR but not ERESTARTSYS. So, if the kernel returns ERESTARTSYS
then Mutter will error out.

Should the kernel be fixed to return EINTR instead of ERESTARTSYS, or should
libdrm be fixed to handle ERESTARTSYS?