[Nouveau] [Bug 100567] Nouveau system freeze fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100567

--- Comment #5 from kevin at potatofrom.space ---
Created attachment 130945
  --> https://bugs.freedesktop.org/attachment.cgi?id=130945&action=edit
journalctl -kb of CTXSW_TIMEOUT on 4.10.10

Can reproduce on Linux 4.10.10 as well. Along with the initial CTXSW_TIMEOUT,
it seems to hang a few kernel tasks relating to atomic commits.

Relevant(?) snippet:

Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: TRAP ch 3 [007f7c2000
X[3611]]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC1/TPC0/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3e000d [OOR_REG]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC2/TPC0/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3e000d [OOR_REG]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: TRAP ch 3 [007f7c2000
X[3611]]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC1/TPC0/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3f000d [OOR_REG]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC1/TPC1/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3f000d [OOR_REG]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC2/TPC0/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3f000d [OOR_REG]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC3/TPC0/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3f000d [OOR_REG]
Apr 20 10:06:03 jenny kernel: nouveau 0000:02:00.0: gr: GPC3/TPC1/MP trap:
global 00000004 [MULTIPLE_WARP_ERRORS] warp 3d000d [OOR_REG]
Apr 20 10:06:07 jenny kernel: nouveau 0000:02:00.0: fifo: SCHED_ERROR 0a
[CTXSW_TIMEOUT]
Apr 20 10:06:07 jenny kernel: nouveau 0000:02:00.0: fifo: gr engine fault on
channel 6, recovering...
Apr 20 10:06:18 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:18 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:19 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:19 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:19 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:20 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:20 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:20 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
Apr 20 10:06:21 jenny kernel: nouveau 0000:02:00.0: X[3611]: nv50cal_space: -16
...

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