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[Bug 230] umount hangs after high disk load

To: xfs-master@xxxxxxxxxxx
Subject: [Bug 230] umount hangs after high disk load
From: bugzilla-daemon@xxxxxxxxxxx
Date: Sat, 15 Mar 2003 13:16:14 -0800
Sender: linux-xfs-bounce@xxxxxxxxxxx
http://oss.sgi.com/bugzilla/show_bug.cgi?id=230





------- Additional Comments From rjmx@xxxxxxxx  2003-03-15 13:16 -------
   I've been experiencing the same problem for several months now, on
my Debian-sarge system (1.2G Athlon/512M RAM). I have xfs partitions
on /usr (30G), /home (20G), /var (7.5G) (but not on /, too lazy to go
through the conversion). Kernel versions I've had it happen with are
2.4.18 and 2.4.19, xfs versions uncertain but at least 1.2, perhaps
1.1 (but I may have been using one of the pre-1.2 versions).

   Again it's /usr that umount hangs on -- but not all the
time. Sometimes it boots clean, sometimes it writes to disk for
upwards of two minutes (!) and *then* boots clean. And sometimes it
writes to disk for upwards of two minutes, or not at all, and then
hangs.

   I haven't been able to correlate it with any particular disk usage
pattern, unlike the person filing this bug. I might go a week or two
without rebooting the thing and it'll boot clean, then reboot into
Linux for five minutes, reboot again, and watch it lock up. The
opposite is equally likely.

   I have tried reversing the mount order (which reverses the umount
order) from having /usr first to having it last, and it still hangs on
/usr, never the others. I've waited for the system to show no activity
for 5-10 minutes and then rebooted, and still had it write to disk for
a long time and then lock up.

Suggestions for further troubleshooting welcome.

 .....Ron




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