Bug 163727 - device-mapper: Event required on device removal.
device-mapper: Event required on device removal.
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Alasdair Kergon
Depends On:
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Reported: 2005-07-20 13:54 EDT by Linda Wang
Modified: 2007-11-30 17:07 EST (History)
6 users (show)

See Also:
Fixed In Version: U2
Doc Type: Bug Fix
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Last Closed: 2006-03-08 11:45:40 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Linda Wang 2005-07-20 13:54:52 EDT
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):

How reproducible:

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

Additional info:
Comment 1 Alasdair Kergon 2005-07-20 14:31:52 EDT
patch submitted for U2

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