Issued:

2009-07-14

Updated:

2009-07-14

RHBA-2009:1151 - kernel bug fix update

Synopsis

kernel bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated kernel packages that fix an issue with HugeTLBfs are now available for Red Hat Enterprise Linux 5.

Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.

These updated kernel packages fix the following bug:

• HugeTLBFS (Translation Look-Aside Buffer File System) allows much larger page sizes than standard 4-kilobyte pages. The kernel's virtual memory subsystem uses these pages to map between real and virtual memory address spaces, and HugeTLBFS allows for significant performance increases for memory-intensive applications under heavy load. When a file existing on the HugeTLB file system was accessed simultaneously by two separate processes, the system become unresponsive and eventually a soft lockup occurred. These updated packages correct this issue so that simultaneous access of a single file on a HugeTLB file system is no longer problematic. (BZ#510235)

Red Hat Enterprise Linux 5 users are advised to upgrade to these updated packages, which resolve these issues.

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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• kernel-2.6.18-128.2.1.el5.src.rpm
• kernel-debug-2.6.18-128.2.1.el5.i686.rpm
• kernel-devel-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-headers-2.6.18-128.2.1.el5.ppc.rpm
• kernel-xen-2.6.18-128.2.1.el5.i686.rpm
• kernel-devel-2.6.18-128.2.1.el5.s390x.rpm
• kernel-headers-2.6.18-128.2.1.el5.i386.rpm
• kernel-debug-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-debug-devel-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-doc-2.6.18-128.2.1.el5.noarch.rpm
• kernel-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-debug-2.6.18-128.2.1.el5.s390x.rpm
• kernel-2.6.18-128.2.1.el5.i686.rpm
• kernel-kdump-2.6.18-128.2.1.el5.s390x.rpm
• kernel-headers-2.6.18-128.2.1.el5.ia64.rpm
• kernel-kdump-devel-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-headers-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-debug-devel-2.6.18-128.2.1.el5.i686.rpm
• kernel-xen-devel-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-xen-devel-2.6.18-128.2.1.el5.i686.rpm
• kernel-debug-devel-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-xen-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-kdump-devel-2.6.18-128.2.1.el5.s390x.rpm
• kernel-headers-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-devel-2.6.18-128.2.1.el5.i686.rpm
• kernel-2.6.18-128.2.1.el5.s390x.rpm
• kernel-xen-2.6.18-128.2.1.el5.ia64.rpm
• kernel-2.6.18-128.2.1.el5.ia64.rpm
• kernel-debug-devel-2.6.18-128.2.1.el5.s390x.rpm
• kernel-headers-2.6.18-128.2.1.el5.s390x.rpm
• kernel-2.6.18-128.2.1.el5.x86_64.rpm
• kernel-devel-2.6.18-128.2.1.el5.ia64.rpm
• kernel-xen-devel-2.6.18-128.2.1.el5.ia64.rpm
• kernel-debug-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-debug-devel-2.6.18-128.2.1.el5.ia64.rpm
• kernel-PAE-devel-2.6.18-128.2.1.el5.i686.rpm
• kernel-devel-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-kdump-2.6.18-128.2.1.el5.ppc64.rpm
• kernel-PAE-2.6.18-128.2.1.el5.i686.rpm
• kernel-debug-2.6.18-128.2.1.el5.ia64.rpm

Fixes

• This content is not included.BZ - 510235

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.