[mythtvnz] Pointers on how to track down machine lockup

[Wade Maxfield]

On 11/10/2010, at 1:26 PM, Solor Vox wrote:

> If you have another PSU on hand, that would be the next best thing to
> check.  You said you check everything on the list... how did you verify
> the PSU was good?  You might also try a CPU burn-in (cpuburn) along with
> some disk IO (iozone3) to simulate both system and power loads.  I
> recommend using one cpuburn mmx process for each core.  These should cause
> any weak components to fail rather quickly.
> 
> Good luck,
> sV

OK, I've been running on the old PSU since last week.  The machine just randomly restarted now, after an error free uptime of over 12 days 10 hours. There's still not many clues in the logs.  Is there some logging I can turn on that I may have missed?

I could understand that a machine locking up then having the reset button pushed would lead to no info being logged, but this is restarting all by itself. If it was a scheduled restart then there should be some clue being logged (unmounting drives, stopping services, etc). What could cause it to just restart by itself? 

 - Wade


syslog
Oct 25 11:32:34 mythtv mountd[1454]: authenticated unmount request from 192.168.1.60:824 for /storage/recordings1 (/storage/recordings1)
Oct 25 11:33:33 mythtv mountd[1454]: authenticated mount request from 192.168.1.60:935 for /storage/recordings1 (/storage/recordings1)
Oct 25 11:35:01 mythtv CRON[19514]: (root) CMD (/usr/local/bin/mythlink.sh)
Oct 25 11:39:41 mythtv kernel: imklog 4.2.0, log source = /proc/kmsg started.
Oct 25 11:39:41 mythtv rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="1109" x-info="http://www.rsyslog.com"] (re)start
Oct 25 11:39:41 mythtv rsyslogd: rsyslogd's groupid changed to 103
Oct 25 11:39:41 mythtv rsyslogd: rsyslogd's userid changed to 101
Oct 25 11:39:41 mythtv rsyslogd-2039: Could no open output file '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ]
Oct 25 11:39:41 mythtv kernel: [    0.000000] Initializing cgroup subsys cpuset
Oct 25 11:39:41 mythtv kernel: [    0.000000] Initializing cgroup subsys cpu


kern.log
Oct 24 23:34:21 mythtv kernel: [1029870.183733] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on tmds encoder (output 1)
Oct 25 00:34:38 mythtv kernel: [1033480.794663] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on tmds encoder (output 1)
Oct 25 06:28:56 mythtv kernel: [1054698.132337] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on tmds encoder (output 1)
Oct 25 11:39:41 mythtv kernel: imklog 4.2.0, log source = /proc/kmsg started.
Oct 25 11:39:41 mythtv kernel: [    0.000000] Initializing cgroup subsys cpuset
Oct 25 11:39:41 mythtv kernel: [    0.000000] Initializing cgroup subsys cpu
Oct 25 11:39:41 mythtv kernel: [    0.000000] Linux version 2.6.32-25-server (buildd at yellow) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #44-Ubuntu SMP Fri Sep 17 21:13:39 UTC 2010 (Ubuntu 2.6.32-25.44-server 2.6.32.21+drm33.7)
Oct 25 11:39:41 mythtv kernel: [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-25-server root=UUID=4f627233-bc71-4116-b416-9fa22d15f6d3 ro quiet
Oct 25 11:39:41 mythtv kernel: [    0.000000] KERNEL supported cpus:
Oct 25 11:39:41 mythtv kernel: [    0.000000]   Intel GenuineIntel
Oct 25 11:39:41 mythtv kernel: [    0.000000]   AMD AuthenticAMD
Oct 25 11:39:41 mythtv kernel: [    0.000000]   Centaur CentaurHauls
Oct 25 11:39:41 mythtv kernel: [    0.000000] BIOS-provided physical RAM map:


messages
Oct 25 00:34:38 mythtv kernel: [1033480.794663] [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on tmds encoder (output 1)
Oct 25 06:28:56 mythtv kernel: [1054698.132337] [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on tmds encoder (output 1)
Oct 25 06:50:38 mythtv rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="1077" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'.
Oct 25 11:39:41 mythtv kernel: imklog 4.2.0, log source = /proc/kmsg started.
Oct 25 11:39:41 mythtv rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="1109" x-info="http://www.rsyslog.com"] (re)start
Oct 25 11:39:41 mythtv rsyslogd: rsyslogd's groupid changed to 103
Oct 25 11:39:41 mythtv rsyslogd: rsyslogd's userid changed to 101
Oct 25 11:39:41 mythtv kernel: [    0.000000] Initializing cgroup subsys cpuset
Oct 25 11:39:41 mythtv kernel: [    0.000000] Initializing cgroup subsys cpu
Oct 25 11:39:41 mythtv kernel: [    0.000000] Linux version 2.6.32-25-server (buildd at yellow) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #44-Ubuntu SMP Fri Sep 17 21:13:39 UTC 2010 (Ubuntu 2.6.32-25.44-server 2.6.32.21+drm33.7)
Oct 25 11:39:41 mythtv kernel: [    0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-25-server root=UUID=4f627233-bc71-4116-b416-9fa22d15f6d3 ro quiet
Oct 25 11:39:41 mythtv kernel: [    0.000000] KERNEL supported cpus:
Oct 25 11:39:41 mythtv kernel: [    0.000000]   Intel GenuineIntel
Oct 25 11:39:41 mythtv kernel: [    0.000000]   AMD AuthenticAMD
Oct 25 11:39:41 mythtv kernel: [    0.000000]   Centaur CentaurHauls


mythbackend.log
2010-10-25 11:38:16.622 MainServer, Warning: Unknown socket closing MythSocket(0x7f5c8481a520)
2010-10-25 11:38:16.640 MainServer, Warning: Unknown socket closing MythSocket(0x7f5c843e9040)
2010-10-25 11:39:48.512 mythbackend version: branches/release-0-23-fixes [24158] www.mythtv.org
2010-10-25 11:39:48.669 Using runtime prefix = /usr
2010-10-25 11:39:48.717 Using configuration directory = /home/mythtv/.mythtv
2010-10-25 11:39:48.877 Using localhost value of mythtv-64
2010-10-25 11:39:48.919 Testing network connectivity to '192.168.1.57'
2010-10-25 11:39:49.019 New DB connection, total: 1