Bug 632255

Summary: RHEVH - Vdsm - Storage: lvextend fails during VMs intensive power up [rhel-5.5.z]
Product: Red Hat Enterprise Linux 5 Reporter: RHEL Program Management <pm-rhel>
Component: kernelAssignee: Jiri Pirko <jpirko>
Status: CLOSED ERRATA QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 5.5.zCC: abaron, agk, cmarthal, coughlan, cpelland, dhoward, dwysocha, heinzm, iheim, jbrassow, joe.thornber, jpirko, jturner, mbenenso, mbroz, mpatocka, ohochman, oramraz, ovirt-maint, pm-eus, prajnoha, prockai, Rhev-m-bugs, rkhan, ykaul
Target Milestone: rcKeywords: TestBlocker, ZStream
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Running the Virtual Desktop Server Manager (VDSM) and performing an lvextend during an intensive Virtual Guest power up caused this operation to fail. Since lvextend was blocked, all components became non-responsive: vgs and lvs commands froze the session, Virtual Guests became Paused or Not Responding. This was caused by a faulty use of a lock. With this update, performing an lvextend operation works as expected.
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-11-09 18:07:45 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 624068    
Bug Blocks: 556823    

Description RHEL Program Management 2010-09-09 14:20:01 UTC
This bug has been copied from bug #624068 and has been proposed
to be backported to 5.5 z-stream (EUS).

Comment 4 Jiri Pirko 2010-10-11 08:54:50 UTC
in kernel 2.6.18-194.20.1.el5

linux-2.6-md-dm-fix-deadlock-with-fsync-vs-resize-in-lvm.patch

Comment 8 errata-xmlrpc 2010-11-09 18:07:45 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-2010-0839.html

Comment 9 Martin Prpič 2010-11-11 13:57:18 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:
Running the Virtual Desktop Server Manager (VDSM) and performing an lvextend during an intensive Virtual Guest power up caused this operation to fail. Since lvextend was blocked, all components became non-responsive: vgs and lvs commands froze the session, Virtual Guests became Paused or Not Responding. This was caused by a faulty use of a lock. With this update, performing an lvextend operation works as expected.