[LU-83] wrong mount option cause system panic on MDS Created: 10/Feb/11  Updated: 21/Mar/11  Resolved: 14/Mar/11

Status: Resolved
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.1.0
Fix Version/s: Lustre 2.1.0

Type: Bug Priority: Major
Reporter: Sarah Liu Assignee: Oleg Drokin
Resolution: Fixed Votes: 0
Labels: None
Environment:

Linux fat-intel-2.lab.whamcloud.com 2.6.18-194.17.1.el5_lustre.g94d9119 #1 SMP Wed Jan 19 08:27:12 EET 2011 x86_64 x86_64 x86_64 GNU/Linux

Attachments: Text File console.log    
Severity: 3
Rank (Obsolete): 5097

 Description   

On MDS node, run the following command:
1. mount with wrong option "user-xattr", got warning message
mount -t lustre -o acl,user-xattr /dev/sdb /mnt/mdt

2. correct the option, system panic
mount -t lustre -o acl,user_xattr /dev/sdb /mnt/mdt

 Comments   
Comment by Robert Read (Inactive) [ 11/Feb/11 ]

Is this reproducible every time you mount the mds with those options?

Comment by Sarah Liu [ 11/Feb/11 ]

yes, every time.

Comment by Oleg Drokin [ 10/Mar/11 ]

Seems to be generic RedHat kernel bug:

[root@centos5 ~]# mount /tmp/lustre-mdt1 /mnt -t ext4 -o loop,blahblah
Segmentation fault
[root@centos5 ~]#
Message from syslogd@ at Thu Mar 10 17:17:00 2011 ...
centos5 kernel: invalid opcode: 0000 [1] SMP

Comment by Oleg Drokin [ 10/Mar/11 ]

Ok, this is in fact bugzilla bug 23368.
The patch landed to 2.1 there is totally bad.

Comment by Build Master (Inactive) [ 10/Mar/11 ]

Integrated in reviews-centos5 #430
LU-83 Kernel BUG in ext4 if wrong mount option is given

Oleg Drokin : 6882007af5208cea407c5207810af4f724a476fa
Files :

  • ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch
Comment by Build Master (Inactive) [ 14/Mar/11 ]

Integrated in lustre-master-centos5 #147
LU-83 Kernel BUG in ext4 if wrong mount option is given

Oleg Drokin : e84a4593535b9a159ad2ac38b613f8700191e7a2
Files :

  • ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch
Comment by Oleg Drokin [ 14/Mar/11 ]

Landed to 2.1

Comment by Build Master (Inactive) [ 16/Mar/11 ]

Integrated in reviews-rhel6 #31
LU-83 Kernel BUG in ext4 if wrong mount option is given

Oleg Drokin : e84a4593535b9a159ad2ac38b613f8700191e7a2
Files :

  • ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch
Comment by Build Master (Inactive) [ 16/Mar/11 ]

Integrated in reviews-centos5 #481
LU-83 Kernel BUG in ext4 if wrong mount option is given

Oleg Drokin : e84a4593535b9a159ad2ac38b613f8700191e7a2
Files :

  • ldiskfs/kernel_patches/patches/ext4-failed-mount-b23368.patch
Comment by Sarah Liu [ 21/Mar/11 ]

verify this bug on build lustre-master-centos5/#152, fixed.

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