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Bug 1187217 - Customer is using libmpathpersist and since updating to device-mapper-multipath-0.4.9-80.el6_6.1 is experiencing application coredumps
Summary: Customer is using libmpathpersist and since updating to device-mapper-multipa...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: device-mapper-multipath
Version: 6.6
Hardware: Unspecified
OS: Unspecified
urgent
urgent
Target Milestone: rc
: ---
Assignee: Ben Marzinski
QA Contact: yanfu,wang
URL:
Whiteboard:
Depends On: 1171862
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-01-29 15:00 UTC by Jan Kurik
Modified: 2019-03-22 07:35 UTC (History)
18 users (show)

Fixed In Version: device-mapper-multipath-0.4.9-80.el6_6.3
Doc Type: Bug Fix
Doc Text:
Previously, the libmultipath utility was keeping a global cache of sysfs data for all programs, even though this was only necessary for the multipathd daemon. As a consequence, a memory error could occur when multiple threads were using libmultipath without locking. This led to unexpected termination of multithreaded programs using the mpath_persistent_reserve_in() or mpath_persistent_reserve_out() functions. With this update, only multipathd uses the global sysfs data cache, and the described crashes are thus avoided.
Clone Of: 1171862
Environment:
Last Closed: 2015-02-05 08:58:44 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0129 0 normal SHIPPED_LIVE device-mapper-multipath bug fix update 2015-02-05 13:58:10 UTC

Description Jan Kurik 2015-01-29 15:00:29 UTC 
This bug has been copied from bug #1171862 and has been proposed
to be backported to 6.6 z-stream (EUS).
Comment 3 Ben Marzinski 2015-01-29 21:05:19 UTC 
Fix backported.
Comment 5 Ben Marzinski 2015-01-30 02:01:52 UTC 
I think this will need to be tested by the reporter.  QA should still do sanity testing to make sure that no regressions were introduced, but this defect doesn't effect any of the actual programs in the device-mapper-multipath package.
Comment 12 errata-xmlrpc 2015-02-05 08:58:44 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0129.html
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