nouveau errors

nouveau errors

Apr 21 13:48:21 paladine kernel: nouveau E[     DRM] GPU lockup - switching to software fbcon
Apr 21 13:48:25 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:29 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:34 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:36 paladine kernel: nouveau E[  X[787]] failed to idle channel 0xcccc0001 [X[787]]
Apr 21 13:48:38 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:42 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:46 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:51 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:51 paladine kernel: nouveau E[  X[787]] failed to idle channel 0xcccc0001 [X[787]]
Apr 21 13:48:53 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] runlist 0 update timeout
Apr 21 13:48:55 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:48:59 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:49:04 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:49:08 paladine kernel: nouveau E[  X[787]] failed to idle channel 0xcccc0000 [X[787]]
Apr 21 13:49:08 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:49:12 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:49:17 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:49:21 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]
Apr 21 13:49:23 paladine kernel: nouveau E[  X[787]] failed to idle channel 0xcccc0000 [X[787]]
Apr 21 13:49:25 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] channel 2 [X[787]] kick timeout
Apr 21 13:49:25 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [(unknown enum 0x0000000d)]
Apr 21 13:49:27 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] channel 2 [X[787]] kick timeout
Apr 21 13:49:27 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [(unknown enum 0x0000000d)]
Apr 21 13:49:29 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] runlist 0 update timeout
Apr 21 13:49:29 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] BIND_ERROR 0x00000003
Apr 21 13:49:44 paladine kernel: nouveau E[hipchat.bin[819]] failed to idle channel 0xcccc0000 [hipchat.bin[819]]
Apr 21 13:49:59 paladine kernel: nouveau E[hipchat.bin[819]] failed to idle channel 0xcccc0000 [hipchat.bin[819]]
Apr 21 13:50:01 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] runlist 0 update timeout
Apr 21 13:50:16 paladine kernel: nouveau E[mpv[23339]] failed to idle channel 0xcccc0000 [mpv[23339]]
Apr 21 13:50:31 paladine kernel: nouveau E[mpv[23339]] failed to idle channel 0xcccc0000 [mpv[23339]]
Apr 21 13:50:33 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] runlist 0 update timeout
Apr 21 19:04:05 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:05 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:06 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:06 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:06 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:06 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:06 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:06 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:07 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:07 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:07 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:07 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:07 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:07 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:08 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:08 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:08 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:08 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:08 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:08 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:09 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:09 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:09 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:09 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:09 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:09 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:10 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:10 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:10 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:10 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:10 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:11 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:12 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:12 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:12 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:12 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:12 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:12 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:13 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:13 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:13 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:13 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:13 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:13 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:14 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:14 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:14 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:14 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:14 paladine kernel: nouveau E[  X[735]] nv50cal_space: -16
Apr 21 19:04:20 paladine kernel: nouveau E[     DRM] GPU lockup - switching to software fbcon
Apr 21 19:04:22 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] runlist 0 update timeout
Apr 21 19:04:24 paladine kernel: nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [CTXSW_TIMEOUT]

Hi,
I've seen the same exact problems in Android-x86 using harism effects OpenGLES 2.0 test app.

Were you able to find the root cause of these freezes/GPU lockup?

It's more that 12 months that I try to undestand what is wrong with nouveau and I have isolated e few possible scenarios:

• when asyncronous activities in separated threads try to restore OpenGL Contexts
• when multiple Cores produce a multiple Threads + multiple GL Contexts scenario
• sometimes could be a result of memory exhaustion, producing invalid physical addresses

In principle nouveau could be corrected to be completely thread safe
Mauro

Related bugs:

• https://bugs.freedesktop.org/show_bug.cgi?id=100567
• https://bugs.freedesktop.org/show_bug.cgi?id=99900
• https://bugs.freedesktop.org/show_bug.cgi?id=93629

Related posts:

• kernel error: Nouveau problem with Xorg: nv50cal_space: -16
• Ubuntu 16.04 desktop hangs occasionally during regular use
• Ubuntu 18.04 desktop hangs approximately 1x per day
• Loki freezes every few hours
• RU: Почему зависает Ubuntu?
• Chromium blacklists Nouveau & Blackrectangles flickering, huge memory and cpu allocation during being inactive, security

Workarounds:

• How do I install the Nvidia drivers?
• Ubuntu showing sched_error 20[ ] on boot