Bug 696889 - emc_clariion error handler panics with multiple failures [rhel-6.0.z]
Summary: emc_clariion error handler panics with multiple failures [rhel-6.0.z]
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: kernel
Version: 6.0
Hardware: x86_64
OS: Linux
urgent
high
Target Milestone: rc
: ---
Assignee: Frantisek Hrbata
QA Contact: Red Hat Kernel QE team
URL:
Whiteboard:
Depends On: 680140
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-04-15 07:29 UTC by RHEL Program Management
Modified: 2011-05-10 18:11 UTC (History)
15 users (show)

Fixed In Version: kernel-2.6.32-71.28.1.el6
Doc Type: Bug Fix
Doc Text:
Deleting an SCSI (Small Computer System Interface) device attached to a device handler caused applications running in user space, which were performing I/O operations on that device, to become unresponsive. This was due to the fact that the SCSI device handler's activation did not propagate the SCSI device deletion via an error code and a callback to the Device-Mapper Multipath. With this update, deletion of an SCSI device attached to a device handler is properly handled and no longer causes certain applications to become unresponsive.
Clone Of:
Environment:
Last Closed: 2011-05-10 18:11:55 UTC
Target Upstream Version:

Attachments (Terms of Use)
6.0.z backport of relevant rhel6.git commits (6.05 KB, patch)
2011-04-19 13:03 UTC, Mike Snitzer 		no flags Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0498 0 normal SHIPPED_LIVE Important: kernel security, bug fix, and enhancement update 2011-05-10 18:10:04 UTC

Description RHEL Program Management 2011-04-15 07:29:45 UTC 
This bug has been copied from bug #680140 and has been proposed
to be backported to 6.0 z-stream (EUS).
Comment 5 Mike Snitzer 2011-04-19 13:03:06 UTC 
Created attachment 493185 [details]
6.0.z backport of relevant rhel6.git commits

6.0.z backport of rhel6.git commits:
2c95f13 [scsi] scsi_dh: propagate SCSI device deletion
c09b68f [scsi] scsi_dh: fix reference counting in scsi_dh_activate error path
Comment 11 Martin Prpič 2011-05-05 08:54:11 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:
Deleting an SCSI (Small Computer System Interface) device attached to a device handler caused applications running in user space, which were performing I/O operations on that device, to become unresponsive. This was due to the fact that the SCSI device handler's activation did not propagate the SCSI device deletion via an error code and a callback to the Device-Mapper Multipath. With this update, deletion of an SCSI device attached to a device handler is properly handled and no longer causes certain applications to become unresponsive.
Comment 12 errata-xmlrpc 2011-05-10 18:11:55 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/RHSA-2011-0498.html
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