Synopsis

device-mapper-multipath bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated device-mapper-multipath packages that fix several bugs and add various
enhancements are now available for Red Hat Enterprise Linux 5.

Description

The device-mapper-multipath packages provide tools to manage multipath devices
using the device-mapper multipath kernel module.

This update fixes the following bugs:

• Multipath was not correctly getting the vendor, product, and revision strings
  for certain devices. Consequently, users were unable to correctly configure or
  use these devices with multipath. With this update, multipath now uses a SCSI
  inquiry IOCTL request to correctly get this information, and multipath is now
  able to configure and use these devices. (BZ#522108)
  
• When a partition was resized, kpartx reloaded the partition device with the
  NOFLUSH flag enabled, which device-mapper does not allow, causing the device to
  be left in a suspended state. Users had to manually resume the devices to
  restore their use. However, this did not fix the partition device size, and the
  partitioned device would become unusable again the next time kpartx was run on
  the device. With this update, kpartx now checks if the partition has changed
  size, and does not set the NOFLUSH flag when reloading a partitioned device with
  a new size. Now, users can repartition devices with kpartx without those devices
  becoming unusable. (BZ#855147)
  
• Previously, the multipathd daemon did not stop and wait for all of its threads
  on shutdown, which caused multipathd to occasionally terminate unexpectedly with
  a segmentation fault during shutdown. With this update, multipathd now correctly
  stops and waits for its threads during shutdown, and crashes no longer occur in
  the described scenario. (BZ#860185)
  
• Previously, the multipathd daemon terminated unexpectedly with a segmentation
  fault on 32-bit systems with a cciss disk controller. This was caused by a stack
  corruption in uev_discard() function. This update corrects the code in the
  uev_discard() function, and crashes no longer occur in the
  described scenario. (BZ#872439)
  
• If the /var/cache directory was a separate file system, the multipathd daemon
  unmounted it in its private namespace on start up. However, multipath requires
  the /var/cache directory to properly setup its private namespace. Consequently,
  the multipathd daemon failed to start on machines where the
  /var/cache directory was a separate file system. With this update, the
  multipathd daemon no longer unmounts the /var/cache directory from its private
  namespace, and multipathd will now correctly start up on machines where the
  /var/cache directory is a separate file system. (BZ#910585)
  
• Multipath switched to use the cciss_id callout for HP P2000 G3 SAS storage
  devices, which did not correctly provide the UUID. Consequently, multipath was
  unable to correctly configure HP P2000 G3 SAS devices. With this update,
  multipath switched back to using the scsi_id callout with the "-n" option to
  enable it to function with cciss devices, and multipath can now correctly
  configure HP P2000 G3 SAS devices. (BZ#948309)
  

In addition, this update adds the following enhancements:

• This update adds a built-in configuration for the IBM XIV Storage System.
  (BZ#799907)
  
• With this update, when multipath is set to log level 3, it will now print
  messages whenever it forks to execute a callout. This update helps debug a
  segmentation fault with multipath on Xen setups. (BZ#839983)
  
• With this update, the default configuration for NetApp devices now includes
  the "flush_on_last_del yes" parameter. With the default configuration, when all
  path devices to a NetApp LUN have been removed from the system, the multipath
  device for that LUN stops queuing I/O. (BZ#916630)
  

Users of device-mapper-multipath are advised to upgrade to these updated
packages, which fix these bugs and add these enhancements.

Solution

Before applying this update, make sure all previously-released errata relevant
to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

(none)

CVEs

(none)

References

(none)

Red Hat Enterprise Linux Server 5

SRPM
device-mapper-multipath-0.4.7-59.el5.src.rpm	SHA-256: ef73a8b1a96b6df743e9fa9a5127394b0ba2803897f3a3adc618d9dcef37044b
x86_64
device-mapper-multipath-0.4.7-59.el5.x86_64.rpm	SHA-256: 3d078900a672f2ed331b704e6bb2a90c100a76f25b2a805e8c7f072859c4c133
device-mapper-multipath-debuginfo-0.4.7-59.el5.x86_64.rpm	SHA-256: 4bb657b627c1ef3459a571b05c5b289b6e61437de1178415f8a72b36f6a96dc6
kpartx-0.4.7-59.el5.x86_64.rpm	SHA-256: 19d525ffd7a92d8a7af203028ad8f4c3ffe8403f2e0007f4ba1929281511fd53
ia64
device-mapper-multipath-0.4.7-59.el5.ia64.rpm	SHA-256: 341c6121f0a6f349147f58973da6ff9beb822d095e3a318c628ea5eaabe65ce9
device-mapper-multipath-debuginfo-0.4.7-59.el5.ia64.rpm	SHA-256: 787f36200e358320d47c9ca0c62632fd486245b86c46bcb1a72242670989fc54
kpartx-0.4.7-59.el5.ia64.rpm	SHA-256: 9fccb686cd4300a74f88a6fcbc9e6c1343dc69a17017f5746fdbc75f1d314845
i386
device-mapper-multipath-0.4.7-59.el5.i386.rpm	SHA-256: 7429f5330b6d930eefb0bf659eba9fce95f4e572dc51f15fe02ecbd8d3537411
device-mapper-multipath-debuginfo-0.4.7-59.el5.i386.rpm	SHA-256: d6a53aec28083ea2226d6109a0273dcdb5807d20d49da69bab576bb10a6717f0
kpartx-0.4.7-59.el5.i386.rpm	SHA-256: 8bf13eb53b9e314da27e89708436877ffcc77b0e39a4c978c731db21683f9170

Red Hat Enterprise Linux Workstation 5

SRPM
device-mapper-multipath-0.4.7-59.el5.src.rpm	SHA-256: ef73a8b1a96b6df743e9fa9a5127394b0ba2803897f3a3adc618d9dcef37044b
x86_64
device-mapper-multipath-0.4.7-59.el5.x86_64.rpm	SHA-256: 3d078900a672f2ed331b704e6bb2a90c100a76f25b2a805e8c7f072859c4c133
device-mapper-multipath-debuginfo-0.4.7-59.el5.x86_64.rpm	SHA-256: 4bb657b627c1ef3459a571b05c5b289b6e61437de1178415f8a72b36f6a96dc6
kpartx-0.4.7-59.el5.x86_64.rpm	SHA-256: 19d525ffd7a92d8a7af203028ad8f4c3ffe8403f2e0007f4ba1929281511fd53
i386
device-mapper-multipath-0.4.7-59.el5.i386.rpm	SHA-256: 7429f5330b6d930eefb0bf659eba9fce95f4e572dc51f15fe02ecbd8d3537411
device-mapper-multipath-debuginfo-0.4.7-59.el5.i386.rpm	SHA-256: d6a53aec28083ea2226d6109a0273dcdb5807d20d49da69bab576bb10a6717f0
kpartx-0.4.7-59.el5.i386.rpm	SHA-256: 8bf13eb53b9e314da27e89708436877ffcc77b0e39a4c978c731db21683f9170

Red Hat Enterprise Linux Desktop 5

SRPM
device-mapper-multipath-0.4.7-59.el5.src.rpm	SHA-256: ef73a8b1a96b6df743e9fa9a5127394b0ba2803897f3a3adc618d9dcef37044b
x86_64
device-mapper-multipath-0.4.7-59.el5.x86_64.rpm	SHA-256: 3d078900a672f2ed331b704e6bb2a90c100a76f25b2a805e8c7f072859c4c133
device-mapper-multipath-debuginfo-0.4.7-59.el5.x86_64.rpm	SHA-256: 4bb657b627c1ef3459a571b05c5b289b6e61437de1178415f8a72b36f6a96dc6
kpartx-0.4.7-59.el5.x86_64.rpm	SHA-256: 19d525ffd7a92d8a7af203028ad8f4c3ffe8403f2e0007f4ba1929281511fd53
i386
device-mapper-multipath-0.4.7-59.el5.i386.rpm	SHA-256: 7429f5330b6d930eefb0bf659eba9fce95f4e572dc51f15fe02ecbd8d3537411
device-mapper-multipath-debuginfo-0.4.7-59.el5.i386.rpm	SHA-256: d6a53aec28083ea2226d6109a0273dcdb5807d20d49da69bab576bb10a6717f0
kpartx-0.4.7-59.el5.i386.rpm	SHA-256: 8bf13eb53b9e314da27e89708436877ffcc77b0e39a4c978c731db21683f9170

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
device-mapper-multipath-0.4.7-59.el5.src.rpm	SHA-256: ef73a8b1a96b6df743e9fa9a5127394b0ba2803897f3a3adc618d9dcef37044b
s390x
device-mapper-multipath-0.4.7-59.el5.s390x.rpm	SHA-256: 52db12b573508a2fabc2c2fc5bfd85404df55007e068fd135ce9ad1f4c1cb29a
device-mapper-multipath-debuginfo-0.4.7-59.el5.s390x.rpm	SHA-256: ebe08008f066cd4ed22eaf87f660b5889e27bc93b4b668189f99375f7659cf0a
kpartx-0.4.7-59.el5.s390x.rpm	SHA-256: c208f0ea4b9f228d651010032a99ce361c82d7edae7641b9cb7060f31a47222d

Red Hat Enterprise Linux for Power, big endian 5

SRPM
device-mapper-multipath-0.4.7-59.el5.src.rpm	SHA-256: ef73a8b1a96b6df743e9fa9a5127394b0ba2803897f3a3adc618d9dcef37044b
ppc
device-mapper-multipath-0.4.7-59.el5.ppc.rpm	SHA-256: 9c49c1973993716f7cb4584e9f680b813db8679aa9538dead8fbf3445f8bbba0
device-mapper-multipath-debuginfo-0.4.7-59.el5.ppc.rpm	SHA-256: 02291574e769fece8ad40885bf381474f36f33d1e7c046380ed7436405ffc578
kpartx-0.4.7-59.el5.ppc.rpm	SHA-256: f5538a243ad52e1a03c122a87f502349ba182231651af4d7e3737a52520fd9aa

Red Hat Enterprise Linux Server from RHUI 5

SRPM
device-mapper-multipath-0.4.7-59.el5.src.rpm	SHA-256: ef73a8b1a96b6df743e9fa9a5127394b0ba2803897f3a3adc618d9dcef37044b
x86_64
device-mapper-multipath-0.4.7-59.el5.x86_64.rpm	SHA-256: 3d078900a672f2ed331b704e6bb2a90c100a76f25b2a805e8c7f072859c4c133
device-mapper-multipath-debuginfo-0.4.7-59.el5.x86_64.rpm	SHA-256: 4bb657b627c1ef3459a571b05c5b289b6e61437de1178415f8a72b36f6a96dc6
kpartx-0.4.7-59.el5.x86_64.rpm	SHA-256: 19d525ffd7a92d8a7af203028ad8f4c3ffe8403f2e0007f4ba1929281511fd53
i386
device-mapper-multipath-0.4.7-59.el5.i386.rpm	SHA-256: 7429f5330b6d930eefb0bf659eba9fce95f4e572dc51f15fe02ecbd8d3537411
device-mapper-multipath-debuginfo-0.4.7-59.el5.i386.rpm	SHA-256: d6a53aec28083ea2226d6109a0273dcdb5807d20d49da69bab576bb10a6717f0
kpartx-0.4.7-59.el5.i386.rpm	SHA-256: 8bf13eb53b9e314da27e89708436877ffcc77b0e39a4c978c731db21683f9170