- Issued:
- 2012-08-22
- Updated:
- 2012-08-22
RHBA-2012:1194 - Bug Fix Advisory
Synopsis
kernel bug fix update
Type/Severity
Bug Fix Advisory
Topic
Updated kernel packages that fix one bug are now available for Red Hat
Enterprise Linux 5.3 Long Life.
Description
The kernel packages contain the Linux kernel, the core of any Linux operating
system.
This update fixes the following bug:
- Under memory pressure, memory pages that are still a part of a checkpointing
transaction can be invalidated. However, when the pages were invalidated, the
journal head was re-filed onto the transactions' forget list, which caused the
current running transaction's block to be modified. As a result, block
accounting was not properly performed on that modified block because it appeared
to have already been modified due to the journal head being re-filed. This could
trigger an assertion failure in the "journal_commit_transaction()" function on
the system. With this update, the "b_modified" flag is cleared before the
journal head is filed onto any transaction, and assertion failures no longer
occur. (BZ#839970)
All users are advised to upgrade to these updated packages, which fix these
bugs. The system must be rebooted for this update to take effect.
Solution
Before applying this update, make sure that all previously-released errata
relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use the Red Hat
Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258
Affected Products
- Red Hat Enterprise Linux Server - AUS 5.3 x86_64
- Red Hat Enterprise Linux Server - AUS 5.3 ia64
- Red Hat Enterprise Linux Server - AUS 5.3 i386
Fixes
(none)CVEs
(none)
References
(none)
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.