Created attachment 124894 [details] dmesg output Hi, I have tested this several times with several different kernels, always with the same result. It deadlocks wayland or X within seconds after opening a terminal or chrome. It starts out like this: [ 108.167312] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT] [ 108.167328] nouveau 0000:01:00.0: fifo: msppp engine fault on channel 12, recovering... [ 118.871915] nouveau 0000:01:00.0: multiqueue0:src[7039]: failed to idle channel 12 [multiqueue0:src[7039]] [ 133.873009] nouveau 0000:01:00.0: multiqueue0:src[7039]: failed to idle channel 12 [multiqueue0:src[7039]] [ 134.242698] nouveau 0000:01:00.0: mspdec: intr 028c0000 [ 134.242744] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 084048 [ IBUS ] [ 138.538241] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT] [ 138.538259] nouveau 0000:01:00.0: fifo: mspdec engine fault on channel 12, recovering... [ 140.537498] nouveau 0000:01:00.0: fifo: runlist update timeout And then it all breaks down and never recovers (the machine is reachable but can't reboot properly afterwards)
Forgot, this has been tested on several kernels - including 4.7-rc6 - which this trace is from.
Just tested with 4.7-rc7 and mesa 12.0.1 - and the issue hasn't happened yet - it usually happened within seconds of logging in. No errors reported in dmesg - I suspect that the issue is fixed now, sorry for the noise.
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