Bug 215947 - kernel dm snapshot: fix metadata writing when suspending
Summary: kernel dm snapshot: fix metadata writing when suspending
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.4
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Milan Broz
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2006-11-16 14:52 UTC by Milan Broz
Modified: 2013-03-01 04:04 UTC (History)
13 users (show)

Clone Of:
Last Closed: 2007-05-08 04:10:43 UTC

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2007:0304 normal SHIPPED_LIVE Updated kernel packages available for Red Hat Enterprise Linux 4 Update 5 2007-04-28 18:58:50 UTC

Description Milan Broz 2006-11-16 14:52:08 UTC
+++ This bug was initially created as a clone of Bug #209843 +++
RHEL 4.5 clone

When suspending a device-mapper device, dm_suspend() sleeps until all
necessary I/O is completed.  This state is triggered by a callback from
persistent_commit().  But some I/O can still be issued *after* the
callback (to prepare the next metadata area for use if the current one is
full).  This patch delays the callback until after that I/O is complete.

Comment 1 RHEL Product and Program Management 2006-11-16 15:04:20 UTC
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

Comment 3 Jason Baron 2006-12-07 20:38:04 UTC
committed in stream U5 build 42.29. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/

Comment 6 Red Hat Bugzilla 2007-05-08 04:10:44 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.


Note You need to log in before you can comment on or make changes to this bug.