Chapter 1. Package Updates
166
1.118. mcelog
1.118.1. RHBA-2010:0247: bug fix update
An updated mcelog package that restricts mcelog operation on para-virtualized guests running under
the Xen hypervisor is now available.
mcelog is a daemon that collects and decodes Machine Check Exception data on AMD64- and Intel
64-based systems.
This update addresses the following issue:
* in some circumstances, mcelog can run on para-virtualized guest operating systems (domU) running
under the Xen hypervisor (dom0). This results in near 100% cpu usage on the guest, with the mcelog
process blocking all other proccesses. This update adds a check to /etc/cron.hourly/mcelog.cron: if the
check finds it is running on a para-virtualized guest, it exits, ensuring mcelog does not execute in such
circumstances. (
BZ#522827
1444
)
All mcelog users should install this this new mcelog package, which adds the check to resolve this
issue.
1.119. mdadm
1.119.1. RHBA-2010:0006: bug fix update
Note
This update has already been released (prior to the GA of this release) as FASTRACK
errata
RHBA-2010:0006
1445
An updated mdadm package that fixes a bug is now available.
mdadm is used to create, manage, and monitor Linux MD (software RAID) devices. It provides similar
functionality to the raidtools package.
This updated package fixes the following bug:
* the previous mdadm update added a data scrubbing cron job, /etc/cron.weekly/99-raid-check, that
looks for bad sectors on drives in redundant arrays and fixes the bad sectors using data from other
drives to reconstruct sectors that return read errors. The script only performs checks on idle, healthy
arrays but, previously, it initiated each check operation in turn, and switched idle arrays to active as
it went. Consequently, if different arrays shared the same physical drive, the raid-check script only
checked one of the arrays on that drive. With this update the raid-check script now gets the the state
from all arrays on all drives before initiating the first check operation. Multiple arrays on a single device
are now checked by the raid-check script as expected. (
BZ#523000
1446
)
All mdadm users are advised to upgrade to this updated package, which resolves these issues and
adds this feature.
1444
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=522827
1446
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=523000
Summary of Contents for ENTERPRISE LINUX 5.5 - S 2010
Page 10: ...x ...
Page 308: ...298 ...
Page 310: ...300 ...
Page 468: ...458 ...
Page 470: ...460 ...