Issued:
2012-12-10
Updated:
2012-12-10

RHBA-2012:1554 - kexec-tools bug fix update

Synopsis

kexec-tools bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated kexec-tools packages that fix one bug are now available for Red Hat Enterprise Linux 6.

Description

The kexec-tools packages contain the /sbin/kexec binary and utilities that together form the user-space component of the kernel's kexec feature. The /sbin/kexec binary facilitates a new kernel to boot using the kernel's kexec feature either on a normal or a panic reboot. The kexec fastboot mechanism allows booting a Linux kernel from the context of an already running kernel.

This update fixes the following bug:

  • Previously, the kexec utility incorrectly recognized the Xen DomU (HVM) guest as the Xen Dom0 management domain. Consequently, the kernel terminated unexpectedly and the kdump utility generated the vmcore file with no NT_PRSTATUS notes. The crash also led to NULL pointer dereference. With this update, kexec collects positions and sizes of NT_PRSTATUS from /sys/devices/system/cpu/cpuN/crash_notes on Xen DomU and from /proc/iomem on Xen Dom0. As a result, the crashes no longer occur. (BZ#878371)

All users of kexec-tools are advised to upgrade to these updated packages, which fix this bug.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the 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

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.3x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.3i386
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support6.3ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support6.3s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.3x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.3i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • kexec-tools-debuginfo-2.0.0-245.el6_3.1.i686.rpm
  • kexec-tools-2.0.0-245.el6_3.1.i686.rpm
  • kexec-tools-2.0.0-245.el6_3.1.x86_64.rpm
  • kexec-tools-debuginfo-2.0.0-245.el6_3.1.ppc64.rpm
  • kexec-tools-2.0.0-245.el6_3.1.s390x.rpm
  • kexec-tools-2.0.0-245.el6_3.1.src.rpm
  • kexec-tools-debuginfo-2.0.0-245.el6_3.1.s390x.rpm
  • kexec-tools-debuginfo-2.0.0-245.el6_3.1.x86_64.rpm
  • kexec-tools-2.0.0-245.el6_3.1.ppc64.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information