Bug 194542

Summary:	dmeventd leaves defunct processes around when opened by clvmd
Product:	Red Hat Enterprise Linux 4	Reporter:	Jonathan Earl Brassow <jbrassow>
Component:	device-mapper	Assignee:	Jonathan Earl Brassow <jbrassow>
Status:	CLOSED ERRATA	QA Contact:	Cluster QE <mspqa-list>
Severity:	high	Docs Contact:
Priority:	high
Version:	4.0	CC:	agk, kanderso, mbroz
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2006-0434	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-08-10 21:25:27 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:	180185, 181411

Description Jonathan Earl Brassow 2006-06-08 20:48:58 UTC

A proper daemon will reparent itself to init.  This happens if you fork and the
parent exits (amoung other things).  However, clvmd never exits, so when
creating a mirror with clvmd running, a zombie process will be left if you
remove the mirror (or suspend/resume cycles happen).

We need to rewrite the way the daemon is launched.

Comment 2 Jonathan Earl Brassow 2006-06-21 21:28:04 UTC

Waiting for patch to be added to LVM2/device-mapper

Comment 3 Alasdair Kergon 2006-07-04 20:40:39 UTC

The launcher needs fixing to deal with SIGCHILD correctly.

Comment 4 Alasdair Kergon 2006-07-04 20:43:44 UTC

Applying temporary workaround having dmeventd as separate binary.

Comment 10 Red Hat Bugzilla 2006-08-10 21:25:28 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-2006-0434.html