Bug 684684 - [NetApp 6.0.z Bug] DM-Multipath fails to update paths during IO with fabric faults
Summary: [NetApp 6.0.z Bug] DM-Multipath fails to update paths during IO with fabric f...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: device-mapper-multipath
Version: 6.0
Hardware: All
OS: All
high
high
Target Milestone: rc
: ---
Assignee: Ben Marzinski
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On: 681144
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-03-14 08:39 UTC by RHEL Program Management
Modified: 2013-01-11 03:52 UTC (History)
16 users (show)

Fixed In Version: device-mapper-multipath-0.4.9-31.el6_0.3
Doc Type: Bug Fix
Doc Text:
Prior to this update, multipathd did not always remove a path's sysfs device from cache when the path was removed. Also, multipathd searched the cache and created sysfs devices without the 'vecs' lock held. As a result, paths would occasionally have invalid sysfs devices, causing multipathd crashes and other errors. With this update, multipathd always removes the sysfs device from cache when deleting the path, and it only accesses the cache with the 'vecs' lock held.
Clone Of:
Environment:
Last Closed: 2011-03-28 07:30:37 UTC
Target Upstream Version:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2011:0384 0 normal SHIPPED_LIVE device-mapper-multipath bug fix update 2011-03-28 07:30:31 UTC

Description RHEL Program Management 2011-03-14 08:39:06 UTC 
This bug has been copied from bug #681144 and has been proposed
to be backported to 6.0 z-stream (EUS).
Comment 4 Ben Marzinski 2011-03-14 21:00:27 UTC 
Fix ported.
Comment 6 Martin Prpič 2011-03-22 09:36:56 UTC 
    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Prior to this update, multipathd did not always remove a path's sysfs device from cache when the path was removed. Also, multipathd searched the cache and created sysfs devices without the 'vecs' lock held. As a result, paths would occasionally have invalid sysfs devices, causing multipathd crashes and other errors. With this update, multipathd always removes the sysfs device from cache when deleting the path, and it only accesses the cache with the 'vecs' lock held.
Comment 7 errata-xmlrpc 2011-03-28 07:30:37 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0384.html
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