Kernel unaligned access at TPC[105d9fb4] nvkm_instobj_wr32+0x14/0x20 [nouveau]
Submitted by Kieron Gillespie
Assigned to Nouveau Project
Description
When attempting to use Nouveau driver with Xorg on my SunBlade 2500 running the latested build from Debian-9.0 Sid SPARC64 CPU 0 runs up to 100% and then eventually the Xorg session shuts down. It appears that it's timing out on a GPU lock. A bunch of messages appears in the Xorg.0.log indicating fifo: CACH_ERROR also with in the messages log there are several repeating errors.
log_unaligned: 598 callbacks suppressed
Kernel unaligned access at TPC[105d9fb4] nvkm_instobj_wr32+0x14/0x20 [nouveau]
Eventually the Xorg session gives up and times out.
I'll try and attach some more logs but it appears to have something to do with the iowrite32_native macro on SPARC V9 systems.