Since the affected maschine is not reachable via SSH, I just dumped the error state every second (while [ 1 ]; sleep 1; do cat /sys/kernel/debug/dri/0/i915_error_state >> error_state; done) and deleted all the "no error state" lines from the file before the actual error dump after the crash. As it turns out, the error state is all zeroes (I do not expect this to be helpful):
Since the affected maschine is not reachable via SSH, I just dumped the error state every second (while [ 1 ]; sleep 1; do cat /sys/kernel/ debug/dri/ 0/i915_ error_state >> error_state; done) and deleted all the "no error state" lines from the file before the actual error dump after the crash. As it turns out, the error state is all zeroes (I do not expect this to be helpful):
$ hexdump errorstate.dump
0000000 0000 0000 0000 0000 0000 0000 0000 0000
*
0000150 0000 0000 0000 0000 0000 0000 0000 000a
000015f
I expect the last byte to be the newline inserted from the shell.