RHSA-2009:1243
137
•
0004-hugetlb-new-sysfs-interface.patch
•
0005-hugetlb-abstract-numa-round-robin-selection.patch
•
0006-mm-introduce-non-panic-alloc_bootmem.patch
•
0007-mm-export-prep_compound_page-to-mm.patch
•
0008-hugetlb-support-larger-than-MAX_ORDER.patch
•
0009-hugetlb-support-boot-allocate-different-sizes.patch
•
0010-hugetlb-printk-cleanup.patch
•
0011-hugetlb-introduce-pud_huge.patch
•
0012-x86-support-GB-hugepages-on-64-bit.patch
•
0013-x86-add-hugepagesz-option-on-64-bit.patch
•
0014-hugetlb-override-default-huge-page-size.patch
• DCA (Direct Cache Access) is a method for warming the cache in the CPU. As part of Intel®'s I/
OAT technology, it minimizes performance-limiting bottlenecks. This release updates the kernel
I/O AT code and includes support for DCA for Intel®'s 82572 Gigabit Ethernet adapter family
(
BZ#252949
1018
)
• The early GFS2 (Global File System) versions contained two system processes, gfs2_glockd and
gfs2_scand which were responsible for scanning the in-core glock structures and freeing them if
they were unused.
In this release these processes have been replaced by a shrinker which frees glocks based on cues
from the VM system. This results in a better use of memory and better response to low memory
conditions (reducing the likelihood of "out of memory" issues). As a side effect, this update reduces
the processing load produced by GFS2 under certain workloads. (
BZ#273001
1019
)
• In order to enable new features (as discussed in Bugzillas #252949 and #436048) I/O AT
(Advanced Technology) code has been updated and problems with
kABI
breakages have been
corrected. (
BZ#273441
1020
)
• This update corrects code that produced bad mpa messages on the restoration or migration of para-
virtualized guest system. (
BZ#288511
1021
)
• Problems caused by Message Signaled Interrupts on Hyper-Transport based machines using
(some) Nvidia cards have been resolved by porting an upstream driver. (
BZ#290701
1022
)
• Some versions of pSeries firmware fail to set up a
dma-window
property for PCI slots that are
unoccupied. As a result, the loop searching for this propery, in
iommu_dev_setup_pSeriesLP()
,
can run to the end, resulting in a NULL pointer dereference later in the routine. This patch prevents
the crash and prints a warning message. (
BZ#393241
1023
)
• The existing 10 second delay waiting for frontend devices to connect was found to be insufficient
under some load conditions. This update increases timeout for device connection on boot to 30
seconds. (
BZ#396621
1024
)
Summary of Contents for ENTERPRISE 5.4 RELEASE NOTES
Page 1: ...Red Hat Enterprise Linux 5 4 Technical Notes Every Change to Every Package ...
Page 18: ...xviii ...
Page 306: ...288 ...
Page 464: ...446 ...
Page 466: ...448 ...