Subject: Crash on "Watchdog detected hard LOCKUP on cpu X" after upgrade to 3.2.x
From: Roman Vesely <roman@liten.cz>
Date: Thu, 7 Mar 2013 12:45:04 +0100

Hello,

Our servers crash after updgrade to 3.2.x kernel. (from 2.6.32)
Only some of the servers fail, various HW (DELL, Intel, SuperMicro).
We use cgroups for mem and cpu hard limit.
We do know if it's HW or kernel or vserver issue...

Kernel log form last crash (3.2.38, SuperMicro):
http://paste.linux-vserver.org/23329

and config (based on Debian+Beng):
http://pastebin.com/0zftvCuN


Another crash: http://paste.linux-vserver.org/23333


Maybe I found a similar problem reported by "ard":
http://paste.linux-vserver.org/23182
http://irc.13thfloor.at/LOG/2013-01/LOG_2013-01-12.txt
and fix for 3.7.x:
http://vserver.13thfloor.at/ExperimentalT/delta-addrlock-fix03.diff


Thanks,

Roman

(sorry for my "english")