Bug 163727

Summary:	device-mapper: Event required on device removal.
Product:	Red Hat Enterprise Linux 4	Reporter:	Linda Wang <lwang>
Component:	kernel	Assignee:	Alasdair Kergon <agk>
Status:	CLOSED CURRENTRELEASE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.0	CC:	agk, christophe.varoqui, dmo, egoggin, lmb, tranlan
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	U2	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-03-08 16:45:40 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:

Description Linda Wang 2005-07-20 17:54:52 UTC

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050422 Red Hat/1.7.7-1.4.2

Description of problem:
If anything is waiting on a device's table when the device is 
removed, we must first wake it up so it releases its reference.
Otherwise the table's reference count will not drop to zero
and the table will not get removed.
 
Problem found during dm multipath testing at EMC last week -
Ed Goggin supplied the patch.

Version-Release number of selected component (if applicable):
RHEL4

How reproducible:
Sometimes

Steps to Reproduce:
1. Problem was found during dm multipath testing at EMC last week 
2.
3.
  

Additional info:

Comment 1 Alasdair Kergon 2005-07-20 18:31:52 UTC

patch submitted for U2