Red Hat Bugzilla – Bug 218266
kernel dm crypt: possible data corruption if running over md-raid5
Last modified: 2013-02-28 23:04:23 EST
Description of problem:
Version-Release number of selected component (if applicable):
Steps to Reproduce:
yes, Ctrl+s works even with no decription filled :-)
Bug description here:
Recently found bug in dm-crypt:
Fix corruption issue with dm-crypt on top of software raid5. Cancelled
readahead bio's that report no error, just have BIO_UPTODATE cleared
were reported as successful reads to the higher layers (and leaving
random content in the buffer cache).
Patch is on way to stable kernel, already fixed upstream (by another code change).
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
Created attachment 142744 [details]
Attached equivalent RHEL patch from dmcrypt mailinglist.
committed in stream U5 build 42.31. A test kernel with this patch is available
QE ack for RHEL4.5.
Fix is in the -52 kernel.
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.