On 7/24/23 19:52, Philip Yang wrote: > start_cpsch map queues when kfd_init_node have race condition with > IOMMUv2 init, and cause the gfx ring test failed later. Remove it > from start_cpsch because map queues will be done when creating queues > and resume queues. > > Reported-by: Michel Dänzer <michel@xxxxxxxxxxx> > Signed-off-by: Philip Yang <Philip.Yang@xxxxxxx> This patch doesn't help for any of the symptoms I've described I'm afraid. iommu=pt on the kernel command line avoids the IB test failures for the compute rings, but doesn't help for any of the other symptoms either, which still leaves the system unusable overall. Sorry I don't have better news, -- Earthling Michel Dänzer | https://redhat.com Libre software enthusiast | Mesa and Xwayland developer
