Bug 633864 – block: fix s390 tape block driver crash that occurs when it switches the IO scheduler [rhel-6.0.z]

Bugzilla will be upgraded to version 5.0. The upgrade date is tentatively scheduled for 2 December 2018, pending final testing and feedback.

Bug 633864 - block: fix s390 tape block driver crash that occurs when it switches the IO scheduler [rhel-6.0.z]

Summary:	block: fix s390 tape block driver crash that occurs when it switches the IO s...

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:	All Linux

Priority	urgent Severity urgent
Target Milestone:	rc
Target Release:	---
Assigned To:	Frantisek Hrbata
QA Contact:	Gris Ge
Docs Contact:

URL:
Whiteboard:
Keywords:	OtherQA, ZStream

Depends On:	632631
Blocks:
	Show dependency tree / graph

Reported:	2010-09-14 10:48 EDT by RHEL Product and Program Management
Modified:	2013-01-10 22:18 EST (History)
CC List:	12 users (show)

See Also:
Fixed In Version:	kernel-2.6.32-71.3.1.el6
Doc Type:	Bug Fix
Doc Text:	Previously, the s390 tape block driver crashed whenever it tried to switch the I/O scheduler. With this update, an official in-kernel API (elevator_change()) is used to switch the I/O scheduler safely, thus, the crashes no longer occurs.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-11-10 14:09:56 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2010:0842	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2010-11-22 14:34:20 EST

Groups: None (edit)

Description RHEL Product and Program Management 2010-09-14 10:48:36 EDT

This bug has been copied from bug #632631 and has been proposed
to be backported to 6.0 z-stream (EUS).

Comment 2 Frantisek Hrbata 2010-10-04 03:14:33 EDT

in 2.6.32-71.3.1.el6

Comment 7 Chris Ward 2010-10-20 06:02:41 EDT

Here are a few arches to test 0day erratum; please test and post feedback before Wed 27th

http://people.redhat.com/kzhang/kernel-2.6.32-71.4.1.el6.x86_64.rpm
http://people.redhat.com/kzhang/kernel-2.6.32-71.4.1.el6.ppc64.rpm
http://people.redhat.com/kzhang/kernel-2.6.32-71.4.1.el6.s390x.rpm

Thanks. Let me know if you need additional arches.

Comment 10 errata-xmlrpc 2010-11-10 14:09:56 EST

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-2010-0842.html

Comment 11 Martin Prpič 2010-11-11 06:47:21 EST

    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:
Previously, the s390 tape block driver crashed whenever it tried to switch the I/O scheduler. With this update, an official in-kernel API (elevator_change()) is used to switch the I/O scheduler safely, thus, the crashes no longer occurs.

Note You need to log in before you can comment on or make changes to this bug.