Red Hat ENTERPRISE LINUX 5.5 - S 2010, Руководство пользователя

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Chapter 1. Package Updates
276
pci-list-assignable-devices
command. The updated package provides an error that
informs the user the module is not loaded. (
BZ#514448
2163
)
• A race condition rarely occurred when a para-virtualized guest was rebooted. When the race
condition occured it caused para-virtualized guests to stop or crash after rebooting. The race
condition no longer occurs in the updated packages and para-virtualized guests should always run
after rebooting. (
BZ#518104
2164
)
• The python environment has been changed to explicitly use the system python. This allows ysers to
install other versions of python for testing. (
BZ#521333
2165
)
• Fixed a regression which prevented para-virtualized guests from being started with attached PCI
devices. PCI passthrough now works with para-virtualized guests. (
BZ#521346
2166
)
• Using the value
rename-restart
for the
on_reboot
parameter caused guests to not start when
the guest was rebooted. Using
rename-restart
now causes guests to start successfully after a
reboot with a different name. (
BZ#521799
2167
)
• Simultaneous migrations from two hosts to a third host and two hosts simultaneously swapping
guests between them would fail. The updated packages fix this issue and simultaneous migrations
now work between multiple hosts. (
BZ#522850
2168
)
• Memory leaks in the
libxc
and the
libxenstore
python binding libraries caused increasing
memory usage over time. The memory leaks in the
libxc
and the
libxenstore
libraries are fixed
in the updated package and the libraries memory usage should remain steady. (
BZ#524308
2169
)
• A guest name conflict caused a running guest to appear shut down after restarting the guest. This
issue is resolved in the updated package and running guest do not erroneously report that they are
shut down. (
BZ#529880
2170
)
• The
xm dump-core
command could not dump memory while a guest is running. The memory
dump functionality has been improved, however, there are still issues with generating live dumps.
The guest core dump image may be in an inconsistent state if the guest is under load. Users are
now warned about this issue. (
BZ#382591
2171
)
These updated packages add the following enhancements:
• PCI device hotplugging works in the updated packages. This feature is supported by the
libvirt
and
virt-manager
tools.(
BZ#512315
2172
)
• Support for MSI-X mask bit acceleration. MSI-X mask bit acceleration improves performance of SR-
IOV devices. (
BZ#557446
2173
and
BZ#542756
2174
)
• The
xendomains
service now has less confusing and better formatted output. (
BZ#251666
2175
)
• Support for the
maxvcpus
parameter for Xen configuration files. The
maxvcpus
parameter sets a
maximum number of VCPUs available that is separate from the initial VCPUs assigned to the guest.
(
BZ#453042
2176
)
• The SMBIOS device, the BIOS device for virtualized guests, now presents the device manufacturer
as "Red Hat" and the product family as "Red Hat Enterprise Linux". (
BZ#499453
2177
)
• SCSI emulated devices were not supported in prior versions. Emulated SCSI devices are now
supported. (
BZ#515757
2178
)