Bug 163727 - device-mapper: Event required on device removal.
Summary: device-mapper: Event required on device removal.
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
: ---
Assignee: Alasdair Kergon
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2005-07-20 17:54 UTC by Linda Wang
Modified: 2007-11-30 22:07 UTC (History)
6 users (show)

Fixed In Version: U2
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2006-03-08 16:45:40 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

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
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