+++ This bug was initially created as a clone of Bug #239655 +++
Allow check_device_area in dm-table.c to succeed if a device has an i_size of zero.
This addresses an issue seen on DASD devices setting up a multipath table for
paths in online and offline state.
Fixed upstream in this patch
-- Additional comment from email@example.com on 2007-05-10 12:03 EST --
simulate zero size device by dm device without table,
[second "dmsetup create" command will fail without patch]
dmsetup create --notable test0
echo 0 100 linear /dev/mapper/test0 0 | dmsetup create test1
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release. Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update
This request was evaluated by Red Hat Kernel Team for inclusion in a Red
Hat Enterprise Linux maintenance release, and has moved to bugzilla
committed in stream U6 build 55.16. A test kernel with this patch is available
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,
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