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1.242.  xen

1.242.1.  RHBA-2009:1092: bug fix update

Note

This update has already been released (prior to the GA of this release) as errata RHBA-2009:1092
Updated xen packages that resolve an issue are now available.
Xen is a high performance and secure open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system.
These updated xen packages fix the following bug:
  • the Linux bonding driver aggregates multiple network interfaces into a single, local "bonded" interface. The 802.1Q specification (also known as VLAN tagging) allows multiple bridged networks to transparently share a single physical network link. When attempting to use a bonded interface and 802.1Q VLAN tagging together, the "network-bridge-bonding" networking script incorrectly called the ifdown command on interfaces other than "bond0", with the result that only the bond0 bridge became active (and not, for example, the "bond0.5" bridge). With these updated packages, using interface bonding together with 802.1Q VLAN tagging works as expected and all interfaces that are expected to become active do so, thus resolving the issue.
All users of the xen packages are advised to upgrade to these updated packages, which resolve this issue.

1.242.2.  RHBA-2009:0401: bug fix update

Note

This update has already been released (prior to the GA of this release) as errata RHBA-2009:0401
Updated Xen packages that fix various bugs are now available.
Xen is a high performance and secure open source virtualization framework. Virtualization allows users to run guest operating systems in virtual machines on top of a host operating system.
Bugs fixed in these updated packages include:
  • Data corruption occurred on guests with virtual SCSI disks larger than 1TB. This update adds support for virtual disks larger than 1TB.
  • Various SCSI device data corruption issues occurred on fully virtualized guests with over 4GB of RAM. This update resolves the data corruption issues on fully virtualized guests with over 4GB of RAM.
  • The Xen SCSI driver scsi_write_data() system call did not verify data if was written before returning. The SCSI driver now flushes the buffer before it returns which ensures data is written to the disk.
Users of Xen are advised to upgrade to these updated packages, which fix these bugs.

1.242.3.  RHBA-2009:1328: bug fix and enhancement update

Updated xen packages that fix several bugs and add enhancements are now available.
The xen packages contain tools for managing the virtual machine monitor in Red Hat Enterprise Linux Virtualization.
These updated packages fix the following bugs:
  • fix CPUs pinning in guest's configuration after save/restore sequence (BZ#228890)
  • kernel command line could not be edited in IA64 PV guests during boot (BZ#249791)
  • disallow migration for domains with attached PCI devices (BZ#334821)
  • give memory back to dom0 if autoballooning failed (BZ#345271)
  • credit scheduler parameters were not preserved during guest restart (BZ#345321)
  • exclusively used devices could be attached to more than one guest at a time (BZ#345441)
  • allow HVM guests creation under tight memory conditions (BZ#419771)
  • migration of PV guests could hang on failure (BZ#428691)
  • xend and xendomains init scripts returned wrong exit codes (BZ#430904)
  • vfb and vkbd entries were not removed from xenstore after destroying a guest (BZ#439182)
  • saving a guest reported success even if the operation failed (BZ#451675)
  • the "xm console" documentation was updated to mention Ctrl-] sequence which escapes from xenconsole (BZ#454611)
  • creating a guest could fail under heavy I/O in dom0 (BZ#456926)
  • serialize iptables calls in hotplug scripts (BZ#460410)
  • HVM guests suffered from missing clock interrupts (BZ#465116)
  • P-V guests could not be rebooted after restarting xend (BZ#468971 , BZ#474579)
  • Xen network-bridge script didn't work when source address was specified for default route (BZ#475249)
  • passing out-of-range identification of an IDE disk caused a guest to misbehave or crash (BZ#475433)
  • bogus MAC address was allowed to be specified for a virtual NIC (BZ#476611)
  • data corruption occurred on guests with virtual SCSI disks larger than 1TB (BZ#479339)
  • HVM guests suffered from time skews (BZ#480689)
  • avoid SCSI device data corruptions on HVM guests with >4GB RAM (BZ#480843)
  • flush Xen SCSI driver buffer to disk before returning from scsi_write_data() function (BZ#481782)
  • correctly handle device detach attempts for devices mounted in guest (BZ#484110)
  • "xm dump-core" didn't truncate existing files (BZ#484346)
  • QCOW images were created with wrong byte order (BZ#485471)
  • P-V guest didn't resume after failed save or migration (BZ#486157)
  • xenconsole didn't work after failed save or migration (BZ#486291)
  • QCOW images couldn't be used with PV guests or HVM guests with PV drivers (BZ#486353)
  • xend didn't stop in runlevels 0, 1, and 6 (BZ#490053)
  • libxenstore would leak memory on every @domainIntroduced event (BZ#490158)
  • boot first entry in guest's grub.conf if default boot configuration is invalid (BZ#490754)
  • pygrub would ignore "default" and "timeout" options in elilo.conf (BZ#491408)
  • bridged network didn't work well when used together with bonding and 802.1q VLANs (BZ#492258)
These updated packages add the following enhancements:
  • support for F11 and F12 keys in HVM BIOS (BZ#338321)
  • support for Ctrk-Alt-Del in HVM BIOS (BZ#338331)
  • support for global default keymap setting (BZ#345251)
  • support for save, restore, migration and dump-core of 32b guests on a 64b host (BZ#425411 , BZ#480118)
  • support for attaching PCI devices to HVM guests using VT-d (BZ#480520)
  • support for virtual SCSI disks larger than 2TB (BZ#482780)
  • support for local migrations (BZ#484967)
  • support for 1GB host page tables (BZ#487342)
  • support for relative mouse offset VNC extension (BZ#487559)
  • support for INT13 LBA48 extensions in HVM BIOS (BZ#487907)
  • fix PCIe NICs on Stoakley detach problem (BZ#507179)
  • fix guest reboot with VT-d device assigned (BZ#507182)
  • add BDFs duplicate check in HVM configure file (BZ#507195)
  • fix MSI-X NIC hotplug removal (BZ#507198)
  • fix `xm pci-list` BDF output on WeyBridge platform (BZ#507257)
  • set cpu_weight default value back to 256 (BZ#508680)
Users of xen are advised to upgrade to these updated packages, which resolve these issues and add these enhancements.

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