User manual REDHAT ENTERPRISE LINUX 5.5 RELEASE NOTES 2010

[. . . ] Red Hat Enterprise Linux 5. 5 Release Notes Release Notes Copyright © 2010 Red Hat. The text of and illustrations in this document are licensed by Red Hat under a Creative Commons Attribution­Share Alike 3. 0 Unported license ("CC-BY-SA"). An explanation of CC-BY-SA is available at http://creativecommons. org/licenses/by-sa/3. 0/. In accordance with CC-BY-SA, if you distribute this document or an adaptation of it, you must provide the URL for the original version. [. . . ] With this update, the Detect Hung Task kernel thread has been added, providing the ability to detect tasks permanently stuck in the D-State. This new feature is controlled by the CONFIG_DETECT_HUNG_TASK kernel flag. When set to "y" tasks stuck in the D-State are detected; when set to n it is off. Additionally, the CONFIG_BOOTPARAM_HUNG_TASK_PANIC flag has been added. When set to y, a kernel panic is triggered when a task stuck in the D-State is detected. BZ#506059 17 Signed s390 Kernel Modules BZ#456181 , BZ#448130 , BZ#427709 19 20 21 Starting at Red Hat Enterprise Linux 5. 5, all s390 kernel modules are now signed. Device Drivers the hpilo driver for HP iLO/iLO2 management processors has been updated. The Advanced Linux Sound Architecture (ALSA) has been updated -- providing enhanced support for 22 High Definition Audio (HDA). the i2c device driver for the iic-bus interface has been updated with support for the SB900 SMBus 23 controller. (BZ#516623 ) the mlx4 driver for Mellanox ConnectX HCA InfiniBand devices has been updated to version 1. 4. 1 24 25 (BZ#514147 BZ#500346 ) 17 18 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=506059 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=483665 19 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=456181 20 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=448130 21 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=427709 22 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=525390 23 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=516623 24 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=514147 5 Release Notes 4. 1. Network Device Drivers Wireless Rebase Red Hat Enterprise Linux 5. 5 contains a major updates to wireless drivers and subsystems in the kernel. The iwlwifi drivers for Intel wireless network adapters have been updated. Devices in this hardware line support 802. 11a, 802. 11b, 802. 11g, and 802. 11n wireless protocols. This update provides new support for iwl6000 and iwl1000 devices, and enhanced support for iwl5000, iwl4965 and iwl3945 devices. This update refreshes the drivers for the Ralink rt2400pci, rt2500pci, rt2500usb, rt61pciand rt73usb chipsets, and the drivers for the rtl8180 and rtl8187 Realtek chipsets. The ath9k driver for Atheros 802. 11n wireless LAN adapters has been enabled. 38 (BZ#542746 ) Broadcom Everest network devices The bnx2x driver for Broadcom Everest network devices has been updated to version 39 40 1. 52. 1-5. (BZ#515716 , BZ#522600) Broadcom NetXtreme II network devices The bnx2 driver for Broadcom NetXtreme II network devices has been updated to version 41 2. 0. 2(BZ#517377) Broadcom NetXtreme II iSCSI 42 The bnx2i driver for Broadcom NetXtreme II iSCSI has been updated. (BZ#516233) RealTek 8169 ethernet driver 43 the r8169 driver for RealTek 8169 ethernet devices has been updated. Storage Device Drivers QLogic Fibre Channel Host Bus Adapter Driver the qla2xxx driver for QLogic Fibre Channel HBAs has been updated to version 8. 03. 01. 04. 05. 05-k 44 45 46 (BZ#519447 BZ#542834 BZ#543057 ) HighPoint RocketRAID 3xxx/4xxx The hptiop driver for HighPoint RocketRAID 3xxx/4xxx controllers has been updated, adding support 47 for RR44xx adapters. (BZ#519076) 34 35 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=513707 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=514306 36 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=516699 37 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=515524 38 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=542746 39 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=515716 40 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=522600 41 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=517377 42 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=516233 43 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=514589 44 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=519447 45 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=542834 46 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=543057 47 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=519076 7 Release Notes Emulex Fibre Channel Host Bus Adapter Driver The lpfc driver for Emulex Fibre Channel HBAs has been updated to version 8. 2. 0. 63. 3p. 48 49 (BZ#515272) BZ#549763 LSI SAS-2 family of adapters The mpt2sas driver that supports the SAS-2 family of adapters from LSI has been updated to version 02. 101. 00. 00. This update fixes many issues, most notably: · Sanity checks have been added when volumes are added and removed, ignoring events for foreign volumes. [. . . ] The stap-server facility on which it relies is undergoing work for security improvements and should be deployed with care on a trustworthy network. C++ Probing The C++ program probing improvements also allows better probing of user-space programs. 6. 3. Valgrind Valgrind is used to monitor memory read, write, and allocation operations. The valgrind tool is frequently used by developers to diagnose and debug memory management problems. 55 56 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=475710 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=475457 57 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=517115 58 https://bugzilla. redhat. com/bugzilla/show_bug. cgi?id=517121 10 Desktop Updates Valgrind has been updated to version 3. 5. 0, providing enhanced support for a wide range of system architectures. This update introduces many improvements to performance, scalability and usability of the Valgrind. [. . . ]