RHBA-2013:0317 - Bug Fix Advisory

Topic

Updated crash packages that fix several bugs and add various enhancements are
now available for Red Hat Enterprise Linux 6.

Description

The crash packages provide a self-contained tool that can be used to investigate
live systems, and kernel core dumps created from the netdump, diskdump, kdump,
and Xen/KVM "virsh dump" facilities from Red Hat Enterprise Linux.

The crash packages have been upgraded to upstream version 6.1.0, which provides
a number of bug fixes and enhancements over the previous version. (BZ#840051)

In addition, this update fixes the following bug:

• A recent time-keeping backport to the Red Hat Enterprise Linux 6 kernel caused

the crash utility to fail during initialization with the "crash: cannot resolve:
xtime" error message. This update modifies crash to recognize and handle the
time-keeping change in the kernel so that crash now successfully starts up as
expected. (BZ#843093)

This update also adds the following enhancements:

• The crash utility has been modified to support dump files in the

firmware-assisted dump (fadump) format for the 64-bit PowerPC architecture.
(BZ#739094)

• The "struct -o" option has been enhanced to accept a virtual address argument.

If an address argument is entered, the structure members are prepended by their
virtual address. (BZ#834260)

• The "bt" command has been enhanced by adding new "-s" and "[-xd]" options that

allow displaying symbol names plus their offset in each frame. The default
behavior is unchanged where only the symbol name is displayed. The symbol offset
is expressed in the default output format, which can be overridden using the
"-x" (hexadecimal) or "-d" (decimal) options. (BZ#834276)

All users of crash are advised to upgrade to these updated packages, which fix
these bugs and add these enhancements.

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

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 834260 - struct command should accept option -o even with address specified
• BZ - 834276 - bt command should print function offset next to symbols found on stack
• BZ - 840051 - Rebase request for crash utility RHEL6.4 errata

CVEs

(none)

References

(none)