RHBA-2006:0106 - Bug Fix Advisory

Topic

An updated gdb package that fixes various bugs is now available.

Description

GDB, the GNU debugger, allows debugging of programs written in C, C++,
and other languages, by executing them in a controlled fashion and then
printing their data.

This updated package addresses the following issues:

• GDB on Itanium had a problem if the user specified non-default handling

of SIGILL.

• GDB on Itanium was having problems with backtraces across a switch from

signal stack to regular stack which occurs when the user program uses the C
sigaltstack function.

• GDB on code using LD_ASSUME_KERNEL=2.4.1 was not providing as much

backtrace information as earlier versions of gdb due to a zero pc value.

• GDB attaching to a stopped process was hanging.
• GDB had an extraneous free call which was freeing a pointer that

wasn't allocated in some cases.

• GDB was sometimes issuing a "partial die in cache" error message.
• GDB used on a threaded program would sometimes fail with an internal

assertion regarding the pid value coming back from a waitpid not being the
expected value.

All users of gdb should 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. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:

up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

http://www.redhat.com/docs/manuals/enterprise/

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

• BZ - 167694 - Uninitialised free when running "info line main"
• BZ - 170275 - gdb unable to decode call stack

CVEs

(none)

References

(none)