- Issued:
- 2008-07-25
- Updated:
- 2008-07-25
RHBA-2008:0802 - Bug Fix Advisory
Synopsis
GFS-kernel bug fix update
Type/Severity
Bug Fix Advisory
Topic
Updated GFS-kernel packages that fix various bugs and module-loading issues
are now available for Red Hat Enterprise Linux 4.7, kernel release
2.6.9-78.EL.
Description
The GFS-kernel packages contain modules that provide the ability to mount
and use GFS file systems.
These updated packages fix the following bugs:
- An assertion stating "fatal: assertion "x <= length" failed", which
caused file systems to withdraw, has been resolved.
- If a process became a zombie while holding a plock, that plock was not
released. In these updated packages, the lock_dlm lock module prevents
threads from hanging a process, which resolves this issue.
- A problem caused by not using the necessary spin locks, which may have
caused an "Unable to handle kernel NULL pointer dereference" error, nodes
to hang, or a kernel panic, has been resolved.
- In certain situations, the "gfs_tool" command returned an "unknown
mountpoint" error, even when the mount point existed. In these updated
packages, gfs-kernel is able to return device IDs in the form of
"major:minor", allowing tools such as "gfs_tool" to identify devices
correctly.
- A problem caused by multiple threads attempting to access the same plock,
resulting in "lock_dlm: Assertion failed" errors, has been resolved.
- An unnecessary assertion, "gfs_glock_is_locked_by_me", which may have
caused applications to timeout, has been removed.
Also, these updated GFS-kernel packages are in sync with the latest
kernel (2.6.9-78.EL). The modules in earlier GFS-kernel packages fail to
load because they do not match the running kernel. It is possible to
force-load the modules; however, with this update, force-loading the
modules is not required.
Users are advised to upgrade to these latest GFS-kernel packages, which
are updated for use with the 2.6.9-78.EL kernel.
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
http://kbase.redhat.com/faq/FAQ_58_10188
Affected Products
- Red Hat Enterprise Linux Resilient Storage for x86_64 4 x86_64
- Red Hat Enterprise Linux Resilient Storage for x86_64 4 ppc
- Red Hat Enterprise Linux Resilient Storage for x86_64 4 ia64
- Red Hat Enterprise Linux Resilient Storage for x86_64 4 i386
Fixes
- BZ - 227892 - assertion 'x <= length' failed
- BZ - 419391 - gfs:gfs_glock_dq kernel oops
- BZ - 431945 - GFS: gfs-kernel should use device major:minor
CVEs
(none)
References
(none)
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.