Bug 696889 – emc_clariion error handler panics with multiple failures [rhel-6.0.z]

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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]

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 6
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	x86_64 Linux

Priority	urgent Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Frantisek Hrbata
QA Contact:	Red Hat Kernel QE team
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	680140
Blocks:
	Show dependency tree / graph

Reported:	2011-04-15 03:29 EDT by RHEL Product and Program Management
Modified:	2011-05-10 14:11 EDT (History)
CC List:	15 users (show)

See Also:
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.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2011-05-10 14:11:55 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
6.0.z backport of relevant rhel6.git commits (6.05 KB, patch) 2011-04-19 09:03 EDT, Mike Snitzer	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2011:0498	normal	SHIPPED_LIVE	Important: kernel security, bug fix, and enhancement update	2011-05-10 14:10:04 EDT

Groups: None (edit)

Description RHEL Product and Program Management 2011-04-15 03:29:45 EDT

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 09:03:06 EDT

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 04:54:11 EDT

    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 14:11:55 EDT

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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