Jetson AGX Orin (JetPack 6.2.1): silent GPU hang - host1x interrupt servicing stalls under sustained compute, reproduces on two distinct Orin systems

[AastaLLL]

Hi

We recently fixed a host1x bug.
Could you try to apply the patch below to see if it can help?

Rcu_preempt caused by cuda-EvtHandlr?

Hi, all Thanks a lot for all of your patience. Our internal team has located this issue. This issue is caused by the lock taken from the IRQ context in host1x_intr_handle_interrupt() racing with host1x_pollfd_poll() from the process context. To fix this issue, please build the custom kernel with the below patch. diff --git a/drivers/gpu/host1x-fence/dev.c b/drivers/gpu/host1x-fence/dev.c index 2229978..7396c32 100644 --- a/drivers/gpu/host1x-fence/dev.c +++ b/drivers/gpu/host1x-fence/dev.c…

Thanks.