affects me too.. I have NVIDIA® Quadro® K2100M Graphics 2GB GDDR5 on my
config. While installing ubuntu, it complains of following..
nouveau E [DRM] failed to idle channel 0xcccc0000 [DRM]
xhci_hcd 0000:00:14.0: HC died: cleaning up
INFO: rcu_sched detected stails on CPUs/tasks: { 2} (detected by 0, t=150002
jiffies, g=324, c=323, q=0)
BUG: soft lockup - CPU#0 stuck for 22s! [khubd:74]
BUG: soft lockup - CPU#0 stuck for 22s! [scsi_id:1042]
...series of the last two lines....
INFO: task kworker/2:1:83 blocked for more than 120 seconds.
Tainted: G W 3.16.0.30-generic #40~04.1-Ubuntu
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message
...again the above message continues randomly starting from INFO: rcu_sched
.......
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https://bugs.launchpad.net/bugs/1097178
Title:
nouveau failed to idle channel 0xcccc0000
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