[LU-2323] mds crash

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Affects Version/s: Lustre 2.2.0
• Labels: server

Environment

[root@n-mds1 ~]# cat /proc/fs/lustre/version
lustre: 2.2.0
kernel: patchless_client
build: 2.2.0-RC2--PRISTINE-2.6.32-220.4.2.el6_lustre.x86_64

[root@n-mds1 ~]# uname -r
2.6.32-220.4.2.el6_lustre.x86_64

[root@n-mds1 ~]# rpm -qa|grep lustre
lustre-ldiskfs-3.3.0-2.6.32_220.4.2.el6_lustre.x86_64.x86_64
lustre-2.2.0-2.6.32_220.4.2.el6_lustre.x86_64.x86_64
kernel-firmware-2.6.32-220.4.2.el6_lustre.x86_64
lustre-modules-2.2.0-2.6.32_220.4.2.el6_lustre.x86_64.x86_64
kernel-headers-2.6.32-220.4.2.el6_lustre.x86_64
kernel-2.6.32-220.4.2.el6_lustre.x86_64
kernel-devel-2.6.32-220.4.2.el6_lustre.x86_64

• Severity: 1

Epic

metadata server

• Assignee: Niu Yawei (Inactive)
• Reporter: ETHz Support (Inactive)

Description

We recently experienced two MDS crashes on our Lustre installation.

I've attached the netconsole output of both crashes (that's all i got: there is nothing in the syslog and i wasn't able to create a screenshot of the console output as the crashed mds was already powercycled by its failover partner).