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ADD 804570 - The elevator bug

To: nb@xxxxxxx
Subject: ADD 804570 - The elevator bug
From: pv@xxxxxxxxxxxxx (ananth@xxxxxxxxxxxx)
Date: Fri, 1 Dec 2000 21:13:38 -0800 (PST)
Cc: raa@xxxxxxx, huovinen@xxxxxxx, cattelan@xxxxxxx, mann@xxxxxxx, tbd@xxxxxxx, rrl@xxxxxxx, alaffin@xxxxxxx, linux-xfs@xxxxxxxxxxx
Reply-to: sgi.bugs.xfs@xxxxxxxxxxxxxxxxx
Sender: owner-linux-xfs@xxxxxxxxxxx
Webexec: webpvupdate,pvincident
Webpv: sgigate.sgi.com
View Incident: 
http://co-op.engr.sgi.com/BugWorks/code/bwxquery.cgi?search=Search&wlong=1&view_type=Bug&wi=804570

 Status : open                         Priority : 3                         
 Assigned Engineer : nb                Submitter : coreym                   
*Modified User : ananth               *Modified User Domain : engr          
*Description :
I ran rwtest on a xfs-linux filesystem on the machine permit:

rwtest 100000000:/mnt1/file_1 >/tmp/file_1.out 2>&1 &

This caused df, ls -l, fdisk, and top all to hang.

Permit is running Redhat 6.2 with a 2.4.0-test5 kernel

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ADDITIONAL INFORMATION (ADD)

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ADDITIONAL INFORMATION (ADD)
From: ananth@engr (BugWorks)
Date: Dec 01 2000 09:13:37PM
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Just so there is no confusion, this is only
in Linux 2.4 ... here it has been observed
only with XFS but elsewhere there also reports
with ext2. Jens Axboe has some fixes for it.
For XFS we are hoping the changes make it into
the next 2.4 patch, test12.

Steve, are you seeing this in 2.4 kernels?

ananth.

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