On Wed, 16 Sep 2020 at 10:01, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > > Shrink the hold time for the error capture mutex to just around the > acquire/release of the PTE used for reading back the object via the > Global GTT. For platforms that do not need the GGTT read back, we can > skip the mutex entirely and allow concurrent error capture. Where we do > use the GGTT, by restricting the hold time around the slow readback and > compression, we are more resilient against softlockups (khungtaskd) as > the heartbeat may well also trigger an error while the first is on > going, and this allows the heartbeat reset to skip past the capture and > not be stalled. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
