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UPDATE 799238 - RAM disk driver breaks locking hierarchy

To: nb@xxxxxxx
Subject: UPDATE 799238 - RAM disk driver breaks locking hierarchy
From: pv@xxxxxxxxxxxxx (lord@xxxxxxx)
Date: Thu, 17 Aug 2000 07:40:42 -0700 (PDT)
Cc: linux-xfs@xxxxxxxxxxx
Reply-to: sgi.bugs.xfs@xxxxxxxxxxxxxxxxx
Sender: owner-linux-xfs@xxxxxxxxxxx
Webexec: webpvupdate,pvincident
Webpv: jen.americas.sgi.com
View Incident: 
http://co-op.engr.sgi.com/BugWorks/code/bwxquery.cgi?search=Search&wlong=1&view_type=Bug&wi=799238

*Summary : RAM disk driver breaks locking hierarchy
 Status : open                        
 Priority : 2                          Assigned Engineer : nb               
 Submitter : dxm                       Opened Date : 08/15/00               
*Modified User : lord                 *Modified User Domain : sgi.com       
*Description :
OK, so this one is repeatable now, and it looks like an
interraction between the ramdisk driver and XFS.

        2 way SMP 1400 with 1Gb memory, 
        SCSI disk. 
        t-o-t kernel, kio _not_ enabled.
        
setup:

        mkfs -t xfs -f /dev/sdc5

.....


==========================
ADDITIONAL INFORMATION (UPDATE)
From: lord@xxxxxxx (BugWorks)
Date: Aug 17 2000 07:40:41AM
==========================

Changing the title on this one, it is not an XFS problem at
all, rather a general linux locking bug. Not sure we should
keep a PV on this one or not....

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