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System hang during shutdown/unmount

To: linux-xfs <linux-xfs@xxxxxxxxxxx>
Subject: System hang during shutdown/unmount
From: Jason White <jasonw@xxxxxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 20 May 2003 19:18:47 +1000
Reply-to: jasonw@xxxxxxxxxxxxxxxxxxxxxxxx
Sender: linux-xfs-bounce@xxxxxxxxxxx
Today I experienced for the first time a system hang during the shutdown
sequence while unmounting local filesystems. There were no error
messages displayed, and nothing in the kernel logs (syslog had already
exited successfully, according to the log). Upon reboot, XFS recovery
took place, with no errors reported, and nor did xfs_check find any
problems on any of the XFS file systems.

The circumstances of the shutdown were that there was plenty of disk
activity due to mail retrieval (sendmail, fetchmail, spamassassin/spamd,
procmail etc., having just been started), but otherwise nothing
unusual, and certainly not a high load average.

Not sure whether this is specifically XFS-related. If it happens again
I will upgrade the kernel.

Kernel details:
Linux jdc 2.4.20-xfs #1 Sat Feb 22 20:34:34 EST 2003 i686
(from CVS as of that date).

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