RHBA-2011:0224 - Bug Fix Advisory

Topic

An updated sysstat package that fixes various bugs is now available for Red Hat
Enterprise Linux 4.

Description

The sysstat package provides the sar and iostat commands. These commands enable
system monitoring of disk, network, and other I/O activity.

This update fixes the following bugs:

• Previously, the variable types in the iostat tool were not identical to the

variable types in /proc/diskstats. This conflict could under circumstances cause
an overflow and iostat could display incorrect values. With this update, the
types are converted and the output values are now correct. (BZ#488181)

• Previously, a buffer overrun could have resulted in inconsistent device names

because of an ill-defined length in ioc_conv in common.c. With this update the
device names are consistent and the issue is resolved. (BZ#493345)

• Previously, sar data set the maximum number of days in log files too high for

timezones which switched to Daylight Saving Time (DST) in February. This caused
sar to add data from March to February. With this update, the maximum number of
days is now 25 and the issue is resolved. (BZ#578927)

• Previously, reading the sum of interrupts from /proc/stat as unsigned long

caused errors on 32-bit architectures because the kernel writes these sums as
unsigned long long. With this update, the types are converted and the output
values are now correct. (BZ#638191)

All sysstat users are advised to upgrade to this updated package, which
resolves these issues.

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
http://kbase.redhat.com/faq/docs/DOC-11259

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 - 493345 - Buffer overrun on device name printing 'sar -p -d 1' on 64 bit machines
• BZ - 578927 - March sar data was appended to February data
• BZ - 638191 - Sum of interrupts read may be read incorrectly from /proc/stat

CVEs

(none)

References

(none)