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Bug 435491

Summary: RHEL4u6 clvmd - lvm commands hang and lvm commands are in 'S' state waiting on syscall connect() to finish
Product: [Retired] Red Hat Cluster Suite Reporter: Shane Bradley <sbradley>
Component: lvm2-clusterAssignee: Christine Caulfield <ccaulfie>
Status: CLOSED ERRATA QA Contact: Cluster QE <mspqa-list>
Severity: medium Docs Contact:
Priority: medium    
Version: 4CC: agk, ccaulfie, dwysocha, edamato, fbijlsma, jbrassow, jplans, mbroz, prockai
Target Milestone: ---Keywords: Reopened
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: RHBA-2008-0806 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-07-25 19:26:36 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:    
Bug Blocks: 439384    
Attachments:
Description Flags
strace tgz file
none
backtrace of dlm connection stack trace
none
device mapper data for machine 89
none
device mapper data for machine 91
none
device mapper data for all nodes.
none
/proc/cluster for all nodes
none
all logs /var/log/messages for all nodes none

Description Shane Bradley 2008-02-29 17:15:38 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.12) Gecko/20080208 Fedora/2.0.0.12-1.fc8 Firefox/2.0.0.12

Description of problem:
Clvmd appears to be hanging(RHEL4u6 x86_64). The lvm commands hang and
lvm commands are in 'S' state waiting on syscall connect() to finish.


../ps/ps-aux-su210091.txt:root     30930  0.0  0.0 62236 2052 ?        S    05:30   0:00 /usr/sbin/lvscan
../ps/ps-aux-su210091.txt:root     31068  0.0  0.0 62236 2052 ?        S    Feb27   0:00 /usr/sbin/lvscan
../ps/ps-aux-su210091.txt:root     31208  0.0  0.0 62236 2052 ?        S    01:37   0:00 /usr/sbin/lvscan
../ps/ps-aux-su210091.txt:root     31264  0.0  0.0 62236 2052 ?        S    16:25   0:00 /usr/sbin/lvscan
../ps/ps-aux-su210091.txt:root     31294  0.0  0.0 62236 2052 ?        S    10:29   0:00 /usr/sbin/lvscan

backtrace of the threads showing the dlm connections is in file gdb.txt that is uploaded.
Uploaded a file that contains straces of lvm commands is uploaded as well.


Version-Release number of selected component (if applicable):


How reproducible:
Always


Steps to Reproduce:
1. Setup cluster
2. start clvmd after node has joined cluster


Actual Results:
Clvmd appears to be hanging(RHEL4u6 x86_64). The lvm commands hang and
lvm commands are in 'S' state waiting on syscall connect() to finish.


Expected Results:
clvmd should start, then all the lvm commands should work correct.


Additional info:
Comment 11 Corey Marthaler 2008-02-29 22:04:42 UTC 
This looks like a dup of bz 217895.
Comment 49 Christine Caulfield 2008-03-18 13:29:08 UTC 

*** This bug has been marked as a duplicate of 435341 ***
Comment 50 Christine Caulfield 2008-03-28 13:28:27 UTC 
Corey is still seeing hangs in clvmd even with the patch for 435341.

The fix is below:

Checking in daemons/clvmd/clvmd.c;
/cvs/lvm2/LVM2/daemons/clvmd/clvmd.c,v  <--  clvmd.c
new revision: 1.45; previous revision: 1.44
done
Comment 52 Corey Marthaler 2008-04-01 20:39:30 UTC 
I ran my lock stress test for 4 hours and didn't see a deadlock (I used to see
it right away), so am marking this bz verified in lvm2-cluster-2.02.27-6.el4.
Comment 54 errata-xmlrpc 2008-07-25 19:26:36 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 the 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/RHBA-2008-0806.html