[Bug 206836] Random Lockups of partition /var

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Feb 2 07:26:44 UTC 2016


            Bug ID: 206836
           Summary: Random Lockups of partition /var
           Product: Base System
           Version: 10.2-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: schmidt at ze.tum.de
                CC: freebsd-amd64 at FreeBSD.org
                CC: freebsd-amd64 at FreeBSD.org

I have 64 Servers Running on Supermicro blades. Most of them running
10.1-release. We are in the process of updating them to 10.2-release. 

On all updated systems the /var partition locks after 20 to 50 days. Services
on the system start to fail. Login Block. On Preopen Connections I can access
all other partitions just fine. Just accessing anything on /var blocks the
whole process without return. 

There are no massages on the console. We have to force power off to restart the

All partitions where SU+Journaling. I've deactivated journaling on all
partitions but the lockups are still coming. 

On all systems are different services. (MySQL, Jenkins, Apache). 

The same Hardware was working and still is working on 10.1-Release an earlier
releases just fine. 

Hostname   dd.mm.yyyy hh:mm Actions taken 
amnesix     7. 9.2015 10:30 Reboot
miraculix  29. 9.2015 03:00 Reboot
amnesix    18.10.2015 05:00 Reboot
amnesix    29.11.2015 16:00 Reboot. Disabled journaling
olympia    12.12.2015 11:00 Reboot. Disabled journaling
devzope    17.12.2015 04:00 Reboot. Disabled journaling
miraculix  22.12.2015 01:20 Reboot. Disabled journaling
olympia    30.12.2015 19:00 Reboot
amnesix     9. 1.2016 02:00 Reboot. fsck -f on all partitions
delphi     28. 1.2016 05:40 Reboot. Disabled journaling. fsck -f
devzope    30. 1.2016 04:50 Reboot. fsck -f
devzope     1. 2.2016 01:45 Reboot. fsck -f
miraculix   2. 2.2016 06:30 Reboot. fsck -f

The symptoms are always the same. After the Power down and reboot the Raid is
resyncing but the system is working just fine until the next lookup. 

I've attached the dmesg.boot of one of the servers. They are all identical.

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