[mythtv-users] a new type of error

[Jim Abernathy]

On 03/09/2018 08:00 AM, Anthony Giggins wrote:
>
>
> On 9 March 2018 at 09:31, James Abernathy <jfabernathy at gmail.com 
> <mailto:jfabernathy at gmail.com>> wrote:
>
>     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 <mailto:jfabernathy at gmail.com>
>
>
>
> Jim try installing mcelog (sudo apt-get install mcelog)  and check 
> /var/log/mcelog after the error has occurred.
>
> you should also see those log errors in you /var/log/syslog and dmesg 
> which might give you more detail
>
> I dont think you've mentioned what hardware this is running on?

The backend hardware is a Intel Core i7-2700K.  It's running Ubuntu 
Server 16.04.4. 4.4.0-116-generic x86_64.

Jim A

>
> Cheers,
>
> Anthony
>
>
>
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