Bug 30412 - XFS Assertion Failed when NFS is Writing
Summary: XFS Assertion Failed when NFS is Writing
Status: RESOLVED DOCUMENTED
Alias: None
Product: File System
Classification: Unclassified
Component: XFS (show other bugs)
Hardware: All Linux
: P1 blocking
Assignee: XFS Guru
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-03-03 21:44 UTC by Graziano Previato
Modified: 2012-08-17 15:09 UTC (History)
2 users (show)

See Also:
Kernel Version: 2.6.32.27
Tree: Mainline
Regression: No

Attachments
Kernel configuration (75.87 KB, text/plain)
2011-03-03 21:49 UTC, Graziano Previato 		Details
Syslog dump for the Assertion Failed (7.40 KB, text/plain)
2011-03-03 21:53 UTC, Graziano Previato 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Description Graziano Previato 2011-03-03 21:44:41 UTC 
Server: Kernel 2.6.32.27 Dom0 running. Not any DumU in.
Filesystems: 
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/md0               9614052   5400808   3724876  60% /
tmpfs                   987860         0    987860   0% /lib/init/rw
udev                     10240       820      9420   9% /dev
tmpfs                   987860         0    987860   0% /dev/shm
/dev/mapper/debian-debian_data
                     910962688 583364784 327597904  65% /data
/dev/mapper/debian-debian_home
                      10475520   5157216   5318304  50% /home
/dev/mapper/debian-debian_tmp
                      10321208    154240   9642680   2% /tmp
/dev/mapper/debian-debian_usr
                      10321208   5683396   4113524  59% /usr

/etc/fstab:
/dev/md0        /               ext3    errors=remount-ro 0       1
/dev/mapper/debian-debian_data /data           xfs     defaults        0       2
/dev/mapper/debian-debian_home /home           xfs     defaults        0       2
/dev/mapper/debian-debian_tmp /tmp            ext3    defaults        0       2
/dev/mapper/debian-debian_usr /usr            ext3    defaults        0       2
/dev/mapper/debian-debian_swp none            swap    sw              0       0

/etc/exports: 
/home		192.168.1.0/24(rw,sync,insecure,no_subtree_check)
/data           192.168.1.0/24(ro,sync,insecure,no_subtree_check)

Normally the server is exporting the /data filesystem, where 2~3 clients are reading files of ~ 600Mbyes Avi films..) without any kind of problem.

Then mounting /home via automount on a MacOSX 10.6 client, where the user home is configured, after few minutes the system block any file access with the following in /var/log/syslog:
Comment 1 Graziano Previato 2011-03-03 21:49:24 UTC 
Created attachment 50002 [details]
Kernel configuration

Kernel configuration to help understanding any misconfigure option..
Comment 2 Graziano Previato 2011-03-03 21:50:20 UTC 
Well, I was able to reproduce the bug more than three times...

Kind Regards,


--gra
Comment 3 Graziano Previato 2011-03-03 21:53:18 UTC 
Created attachment 50012 [details]
Syslog dump for the Assertion Failed

The error description detailed from syslog
Comment 4 Dave Chinner 2011-03-10 22:42:36 UTC 
Turn off CONFIG_XFS_DEBUG. That should never be used on production systems.
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