Chapter 1. Package Updates
122
The kernel driver dm-snapshot handles multiple snapshots with different chunk sizes incorrectly.
It occasionally dispatches write requests to the origin volume prior to copying the data to all the
snapshots. As a consequence, the snapshots are not static and writes to the origin are occasionally
reflected to the snapshots. When there are multiple snapshots of the same origin volume with
different chunk sizes, and you write to the origin volume, the data in the snapshots may be
corrupted.
This update ensures that the kernel driver always waits until all the chunks in all the snapshots are
reallocated before dispatching a write request to the origin device.
• raid5: Mark cancelled readahead BIOS with -EIO.
BZ#512552
1087
1.88.7.1.9. Wireless Infrastructure and Driver Updates
• iwlwifi: Fix dual-band N-only use on IWL5x00.
BZ#566696
1088
• rt2x00: Fix work cancel race conditions.
BZ#562972
1089
• Update old static regulatory domain rules.
BZ#543723
1090
• Puma Peak wireless support.
BZ#516859
1091
This update contains support for the iwl6000 hardware from Intel. Devices in this hardware line
support 802.11a, 802.11b, 802.11g, and 802.11n protocols. This update also includes support for the
iwl1000 hardware line. Support for iwl5000, iwl4965, and iwl3945 was also updated.
In order to support the features of these drivers, the mac80211 and cfg80211 subsystems were
updated. Further, all existing mac80211-based drivers were refreshed to match the updated
mac80211 subsystem.
• Support Realtek RTL8187B wireless driver.
BZ#514661
1092
• Update Intel wireless driver (iwlagn) for iwl4965 / iwl5000.
BZ#474328
1093
• Add support for Atheros wireless ATH9k driver.
BZ#456943
1094
The update of the mac80211 enabled support of the ath9k driver. This supports the full line of
802.11n wireless LAN adapters from Atheros.
• mac80211: fix reported wireless extensions version.
BZ#513430
1095
1.88.7.1.10. Memory Management Updates
• [Xen]
mmap()
with PROT_WRITE on Red Hat Enterprise Linux 5 was incompatible with Red Hat
Enterprise Linux 4.
BZ#562761
1096
•
munmap()
fails when
mm_struct.map_count
temporarily reaches
max_map_count
BZ#552648
1097
A problem was found where
munmap()
would fail with an ENOMEM error if:
• the number of VMAs = VMA limit - 1, and
• it does not unmap an entire VMA but only part of a VMA.
This update implements further checks to handle partial unmappings to avoid this problem.
Summary of Contents for ENTERPRISE LINUX 5.5 - S 2010
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