RHSA-2010:0178: Important Red Hat Enterprise Linux 5.5 kernel security and bug fix update
105
A problem was found where, under the right conditions, it was possible for packets to become re-
ordered prior to the assignment of a Transmission Sequence Number (TSN) value. The conditions
which caused this are the fact that multiple interfaces were used in transmission, where each had
differing Path Maximum Transmission Unit (pmtu) values.
This update addresses the problem with the SCTP stack that allowed this reordering to occur.
• Cap kernel at 1024G on x86_64 systems.
• Fix kernel crash when 1TB of memory and NUMA is used.
BZ#523522
751
• kvm: Allow kvmclock to be overwritten.
BZ#523447
752
• glibc should call pselect() and ppoll() on Itanium kernels.
BZ#520867
753
• Force Altix drivers to use 64-bit addressing. This update is Altix-specific.
BZ#517192
754
This update applies to the 64-bit Itanium2 architecture.
• vsmp: Fix bit-wise operator and compile issue.
BZ#515408
755
• Fix hugepage memory tracking.
BZ#518671
756
1.88.7.1.2.4. IBM S/390-specific Updates
• qeth: Set default BLKT settings by OSA hw level.
BZ#559621
757
A problem was found where new hardware was being configured with values for old hw levels,
because BLKT settings were not being set according to different hw levels.
This update ensures that the BLKT settings are applied after the hw level has been probed.
• Clear high-order bits after switching to 64-bit mode.
BZ#546302
758
• Fix single stepping on svc 0.
BZ#540527
759
A problem was found where if a system call number > 256 is single-stepped or svc 0 is single-
stepped then the system call would not be executed. This update provides a solution to this
problem.
• DASD: Support DIAG access for read-only devices.
BZ#537859
760
• IUCV: Use correct output register in
iucv_query_maxconn()
.
BZ#524251
761
A problem was found where the system log contained kernel messages reporting that the IUCV
"pathid" was greater than
max_connections
. This is because the wrong output register was used
when querying the maximum number of IUCV connections.
This update ensures that the correct output register is used, and this problem no longer occurs.
• cio: Fix set online/offline processing failures.
BZ#523323
762
A problem was found where the
set online
or
set offline
routines failed for a DASD device.
Afterwards this device could neither be set online nor offline.
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