Red Hat ENTERPRISE LINUX 5.5 - TECHNICAL NOTES Manual page 105

* priority ordered lists are now used for threads waiting for a given mutex.
* a deadlock in DLM could cause GFS2 file systems to lock up.
* use-after-free bug in the audit subsystem crashed certain systems when running usermod.
626
(BZ#533861 )
* on certain hardware configurations, a kernel panic when the Broadcom iSCSI offload driver (bnx2i.ko
and cnic.ko) was loaded.
* qla2xxx: Enabled MSI-X, and correctly handle the module parameter to control it. This improves
performance for certain systems.
* system crash when reading the cpuaffinity file on a system.
* suspend-resume problems on systems with lots of logical CPUs, e.g. BX-EX.
* off-by-one error in the legacy PCI bus check.
* TSC was not made available on systems with multi-clustered APICs. This could cause slow
performance for time-sensitive applications.
* ACPI: ARB_DISABLE now disabled on platforms that do not need it.
* fix node to core and power-aware scheduling issues, and a kernel panic during boot on certain AMD
Opteron processors. (BZ#539678
636
BZ#539680 BZ#539682
,
* APIC timer interrupt issues on some AMD Opteron systems prevented achieving full power savings.
638
(BZ#539681 )
* general OProfile support for some newer Intel processors.
* system crash during boot when NUMA is enabled on systems using MC and kernel-xen.
640
(BZ#539684 )
* on some larger systems, performance issues due to a spinlock.
* APIC errors when IOMMU is enabled on some AMD Opteron systems.
624
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=533858
625
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=533859
626
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=533861
627
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=537014
628
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=537020
629
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=537346
630
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539674
631
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539675
632
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539676
633
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539677
634
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539678
635
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=540469
636
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539680
637
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539682
638
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539681
639
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539683
640
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539684
641
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539685
642
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=539687
RHSA-2009:1670: Important security and bug fix update
627
(BZ#537014 )
628
(BZ#537020
(BZ#539675
(BZ#539676
634
BZ#540469
,
637
)
(BZ#533859
)
(BZ#537346
631
)
632
)
(BZ#539677
635
,
(BZ#539683
(BZ#539685
624
(BZ#533858 )
625
)
629
)
630
(BZ#539674 )
633
)
639
)
641
)
642
(BZ#539687 )
95