Bug 723169

Summary: [device-mapper-multipath] multipath -r returns with problem assembing map mp->params too small
Product: Red Hat Enterprise Linux 6 Reporter: Haim <hateya>
Component: device-mapper-multipathAssignee: Ben Marzinski <bmarzins>
Status: CLOSED DUPLICATE QA Contact: Storage QE <storage-qe>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.2CC: agk, bazulay, bmarzins, bsettle, dwysocha, heinzm, mgoldboi, prajnoha, prockai, qcai, yeylon, zkabelac
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-10-06 02:20:36 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Comment 2 Haim 2011-07-19 10:05:41 UTC 
Description of problem:

case: 

1) host connected via FC to 500 luns with 4 paths each
2) from storage system (emc), disconnect all storage domains from host 
3) run  /usr/bin/rescan-scsi-bus.sh
4) run /sbin/multipath 
5) run /sbin/multipath -r 


Jul 19 13:01:54 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:01:54 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:01:55 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:01:56 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:01:57 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:01:58 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:01:59 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:02:00 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:02:01 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:02:01 | 350060160c4604d6f50060160c4604d6f: problem assembing map
mp->params too small
Jul 19 13:02:02 | 350060160c4604d6f50060160c4604d6f: problem assembing map


1) takes really long time to return
2) would like to understand whats the origin of this error
3) error message has a spell mistake; /s/assembing/assembling/g
Comment 3 Ben Marzinski 2011-08-12 03:08:58 UTC 
There are a number of possible reasons why you might be getting that error.  I've made some debug packages that you can pick up at

http://people.redhat.com/bmarzins/device-mapper-multipath/rpms/RHEL6/x86_64/

or

http://people.redhat.com/bmarzins/device-mapper-multipath/rpms/RHEL6/i686/

that will print more debugging information so that I can see what's going on here.
Comment 4 Suzanne Logcher 2011-10-06 18:42:14 UTC 
Since RHEL 6.2 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.
               
Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.
Comment 6 Ben Marzinski 2015-10-06 02:20:36 UTC 

*** This bug has been marked as a duplicate of bug 895110 ***