Hi;

I'm running 6.11

 

I've had three unraid OS crashes while trying to do a data rebuild from a failed drive.  After about 3 hours of an 8 hour expected rebuild the system just goes offline.  The server seems to work ok for these hours until the crash.  I can't access it via ssh or the GUI, and can't get a diagnostic report.  I have to restart with the reboot button.  The last time it was in safe mode. 

 

 

Edit:  I learned how to turn on "Mirror syslog to flash" and I'll report back...

 

I finally for a syslog from the crash, it's below.  I don't see many errors except a failed time synch.  The crash seems to come at about the same percent data rebuild, so it could be related to a disk access error but I don't see evidence of that.

 

I'll try booting the server but not mounting the array

 

Thanks for any advice in advance

syslog20221215.zip

Edited December 15, 20223 yr by dtempleton
update with syslog

OK, I figured this one out myself.

 

The symptoms of crashing were not related to the parity rebuild, but coincidental.

 

The syslog held the key- this several-times repeating error: ntpd[1135]: kernel reports TIME_ERROR: 0x41: Clock Unsynchronized

 

I found a post on Reddit that suggested turning off ntpd auto update, but that did nothing.  However one post there said "check your motherboard battery", so I did that.

 

Replacing the battery on the motherboard prevented any subsequent UNRAID OS crashes.

 

Hope this helps someone down the line.

 

Dennis