[mythtv-users] a new type of error

James Abernathy jfabernathy at gmail.com
Thu Mar 8 23:31:37 UTC 2018


I’ve setup my mythtv backend to daily optimize and backup the database.  I have it email me with the results.  So when I don’t get the 2 emails at 7:35am each day, I go looking for problems. The system still records problems and the frontends work for viewing.

What I’ve seen lately is I can’t ssh or login at the PC console of the backend, and I get errors on the console like:
Mar  7 12:11:47 mythbuntu kernel: [317584.873671] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 22s! [TFWWrite:25774]
Mar  7 12:12:15 mythbuntu kernel: [317612.872998] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 23s! [TFWWrite:25774]
Mar  7 12:12:55 mythbuntu kernel: [317652.872033] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 23s! [TFWWrite:25774]
Mar  7 12:13:23 mythbuntu kernel: [317680.871359] NMI watchdog: BUG: soft lockup - CPU#4 stuck for 22s! [TFWWrite:25774]

The Host name is mythbuntu.  It’s a Ubuntu 16.04 system

Once I reboot, the system works fine and I get my optimize emails after a short time.  But a day or so later I notice this problem again.  I have not changed anything, but I have done some updating using:  apt update and apt upgrade.

Any ideas??

Jim Abernathy
jfabernathy at gmail.com



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