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Red Hat Product Errata RHBA-2012:0398 - Bug Fix Advisory
Issued:
2012-03-21
Updated:
2012-05-16

RHBA-2012:0398 - Bug Fix Advisory

  • Overview
  • Updated Packages

Synopsis

kvm bug fix update

Type/Severity

Bug Fix Advisory

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated kvm packages that fix one bug are now available for Red Hat Enterprise
Linux 5.

Description

[Updated 16 May 2012]
This advisory has been updated with the correct description for bug 802429. The
packages included in this revised update have not been changed in any way from
the packages included in the original advisory.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux
on AMD64 and Intel 64 systems. KVM is a Linux kernel module built for the
standard Red Hat Enterprise Linux kernel.

This update fixes the following bug:

  • An accounting error in the I/O thread subsystem in QEMU could, under certain

circumstances, lead to I/O stalls on the guest. This would typically cause the
guest to become unresponsive. With this update, the accounting error has been
corrected, and I/O stalls no longer occur in this scenario. (BZ#802429)

All users of kvm are advised to upgrade to these updated packages, which fix
this bug. Note that the procedure in the Solution section must be performed
before this update will 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/kb/docs/DOC-11259

The following procedure must be performed before this update will take
effect:

1) Stop all KVM guest virtual machines.

2) Either reboot the hypervisor machine or, as the root user, remove (using
"modprobe -r [module]") and reload (using "modprobe [module]") all of the
following modules which are currently running (determined using "lsmod"):
kvm, ksm, kvm-intel or kvm-amd.

3) Restart the KVM guest virtual machines.

Affected Products

  • Red Hat Enterprise Linux Server 5 x86_64
  • Red Hat Enterprise Linux Workstation 5 x86_64

Fixes

(none)

CVEs

(none)

References

(none)

Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 5

SRPM
kvm-83-249.el5_8.src.rpm SHA-256: 8a9cf272da2a28cc2bbd5cb79e42dc9281c07c53c1444ea5f203592d57280b9e
x86_64
kmod-kvm-83-249.el5_8.x86_64.rpm SHA-256: 5a3a299ced496b2f596564d6b683b01b2dfedf5a2845894a0c14dade5240f090
kmod-kvm-debug-83-249.el5_8.x86_64.rpm SHA-256: ff8c5b42fb999fbc2792063342ed857058d74f5fd638f92ae8ad187c01b354cc
kvm-83-249.el5_8.x86_64.rpm SHA-256: 28f70e2f7e2eb19a2d1df3f952d7602c985f82dbf5b15dfe3a4d80e3165d2838
kvm-debuginfo-83-249.el5_8.x86_64.rpm SHA-256: 5bae4c17a10f183b0b6f9d8a69984d32432d002c2ad70de67b74acc580b8a069
kvm-qemu-img-83-249.el5_8.x86_64.rpm SHA-256: 76d5d78aca5c922a3d9bcbb0bbe52a6287a6e7ed2f567e29d22daa03983f36b1
kvm-tools-83-249.el5_8.x86_64.rpm SHA-256: c8ef6181f7aeb19b6d6dda460e6b9fcb0ea62224e6f782de91234ffc208a0f5e

Red Hat Enterprise Linux Workstation 5

SRPM
kvm-83-249.el5_8.src.rpm SHA-256: 8a9cf272da2a28cc2bbd5cb79e42dc9281c07c53c1444ea5f203592d57280b9e
x86_64
kmod-kvm-83-249.el5_8.x86_64.rpm SHA-256: 5a3a299ced496b2f596564d6b683b01b2dfedf5a2845894a0c14dade5240f090
kmod-kvm-debug-83-249.el5_8.x86_64.rpm SHA-256: ff8c5b42fb999fbc2792063342ed857058d74f5fd638f92ae8ad187c01b354cc
kvm-83-249.el5_8.x86_64.rpm SHA-256: 28f70e2f7e2eb19a2d1df3f952d7602c985f82dbf5b15dfe3a4d80e3165d2838
kvm-debuginfo-83-249.el5_8.x86_64.rpm SHA-256: 5bae4c17a10f183b0b6f9d8a69984d32432d002c2ad70de67b74acc580b8a069
kvm-qemu-img-83-249.el5_8.x86_64.rpm SHA-256: 76d5d78aca5c922a3d9bcbb0bbe52a6287a6e7ed2f567e29d22daa03983f36b1
kvm-tools-83-249.el5_8.x86_64.rpm SHA-256: c8ef6181f7aeb19b6d6dda460e6b9fcb0ea62224e6f782de91234ffc208a0f5e

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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