We need to backport changes 7c9e6c17325fab380fbe9c9787680ff7d4a51abd (dm exception store: refactor zero_area) and 7acedc5b98a2fcff64f00c21110aae7d3ac2f7df (dm exception store: fix misordered writes) from Linux 2.6.28. There is a small time window when snapshot data on disk are inconsistent because of misordered updates. If the computer crashed at this point, the user would see damaged snapshot store after a reboot.
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 release.
Created attachment 340860 [details] a backported patch from upstream
in kernel-2.6.18-144.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5 Please do NOT transition this bugzilla state to VERIFIED until our QE team has sent specific instructions indicating when to do so. However feel free to provide a comment indicating that this fix has been verified.
What is status of QE team verifying this fix? Last update was over a month ago.
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 therefore 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/RHSA-2009-1243.html
*** Bug 481027 has been marked as a duplicate of this bug. ***