Synopsis

device-mapper-multipath bug-fix and enhancement update

Type/Severity

Product Enhancement Advisory

Topic

Updated device-mapper-multipath packages that fix several bugs and add
various enhancements are now available.

Description

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

This update applies the following bug fixes:

• Occasionally multipathd was ignoring a device's hardware type when
  configuring it after a path was added.
  
• Multiple documentation errors were fixed.
  
• Multipathd would occasionally hang or crash while shutting down.
  
• Multipath would always return a failure exit code when removing a device
  with multipath -f/-F.
  
• Multipathd wouldn't free its resources when it failed to execute a callout.
  
• Multipathd would always return a success exit code for interactive
  commands, even if the command failed or was invalid.
  
• The mpath_prio_alua pritority callout was failing on some setups because
  a buffer was too small.
  
• Multipathd was holding mount points in the /etc directory busy, even
  after they were unmounted.
  
• Multipath and multipathd were racing to create the mulitpath devices for
  newly added block devices. This was causing device creation to take a long
  time on some systems, and could even cause devices to have incorrect
  configurations.
  

This update adds the following enhancements:

• Default configurations were added for the Compellent Storage Center and
  the IBM DS3200, DS3300, DS4700, and DS5000.
  
• It is now possible to set the verbosity level for the multipath and
  multipathd commands in /etc/multipath.conf.
  
• The TUR path checker retries on more transient errors, so that multipathd
  will not fail a path due to a transient error.
  
• There is a new priority callout mpath_prio_intel to support the Intel
  Modular Server.
  
• There is now a multipath.conf.5 man page that explains the
  /etc/multipath.conf configuration file.
  

All users are advised to upgrade to these updated packages, which resolve
these issues and add these enhancements.

Solution

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

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

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

• BZ - 244967 - Frequent path failures during I/O on DM multipath devices
• BZ - 452897 - [RHEL 5.1] multipath -ll output shows mix of failover and multibus
• BZ - 457776 - Error in multipath.conf.defaults causes reboot hangs if used in an actual config file
• BZ - 462776 - Patch to add support for Compellent SANs to hwtable.c for dm-multipath
• BZ - 470896 - Possible bug in the DM-MP documentation.
• BZ - 471854 - [NetApp 5.4 feat] Add an option to specify multipathd verbosity through /etc/multipath.conf
• BZ - 472451 - [Emulex 5.4 bug] path checker does not retry TUR in case of transient error
• BZ - 474451 - [Intel 5.4 FEAT] Request to Support Intel Modular Server in scsi_dh
• BZ - 477023 - multipath always exits with EXIT_FAIL with -f/-F commands
• BZ - 480048 - multipathd doesn't close pipe fds on a failed fork
• BZ - 481227 - multipath.conf: polling_interval is misleading in the docs
• BZ - 481633 - Kernel Panics Observered During Multipath Storage Failover/Failback
• BZ - 484711 - multipathd cmd should return non zero exit if cmd string is bogus
• BZ - 490633 - multipath pp_alua: retry RTPG command if buffer too small
• BZ - 496682 - multipathd holds mount-points busy even after unmounting
• BZ - 506715 - [NetApp 5.4 bug] Extended delay in releasing underlying devices by multipathd after flushing multipath maps

CVEs

(none)

References

(none)

Red Hat Enterprise Linux Server 5

SRPM
device-mapper-multipath-0.4.7-30.el5.src.rpm	SHA-256: 016fabdf9d0f80057735ccc4b8df458495dc0940b7f022aca42d550eac4f9aa7
x86_64
device-mapper-multipath-0.4.7-30.el5.x86_64.rpm	SHA-256: 3816829aac8e297ba76f92d66a93f1e45142bd3521cac7a6ab7683aaf6d55e92
kpartx-0.4.7-30.el5.x86_64.rpm	SHA-256: 99eb643375ed6900a8054696d8f2d96cc8734f90765c11e7ffbab2d7393ad9e0
ia64
device-mapper-multipath-0.4.7-30.el5.ia64.rpm	SHA-256: 1021e645c490279da972af11f14b3590447f51d6f79ef2ea950805ad9a44dcc0
kpartx-0.4.7-30.el5.ia64.rpm	SHA-256: 69fc1c0b2d402310ad50811166b2c18871b37d00a391f7bfc8f2d8e9feac859c
i386
device-mapper-multipath-0.4.7-30.el5.i386.rpm	SHA-256: 533e3ceef32cf6b4f575d4a855f0170c52ecbf4e2c8444a55acf9f222d743a43
kpartx-0.4.7-30.el5.i386.rpm	SHA-256: 0f4f94fa79a8e94c06e72f511e61aa9899ed46868538628ed7c86899782c385c

Red Hat Enterprise Linux Workstation 5

SRPM
device-mapper-multipath-0.4.7-30.el5.src.rpm	SHA-256: 016fabdf9d0f80057735ccc4b8df458495dc0940b7f022aca42d550eac4f9aa7
x86_64
device-mapper-multipath-0.4.7-30.el5.x86_64.rpm	SHA-256: 3816829aac8e297ba76f92d66a93f1e45142bd3521cac7a6ab7683aaf6d55e92
kpartx-0.4.7-30.el5.x86_64.rpm	SHA-256: 99eb643375ed6900a8054696d8f2d96cc8734f90765c11e7ffbab2d7393ad9e0
i386
device-mapper-multipath-0.4.7-30.el5.i386.rpm	SHA-256: 533e3ceef32cf6b4f575d4a855f0170c52ecbf4e2c8444a55acf9f222d743a43
kpartx-0.4.7-30.el5.i386.rpm	SHA-256: 0f4f94fa79a8e94c06e72f511e61aa9899ed46868538628ed7c86899782c385c

Red Hat Enterprise Linux Desktop 5

SRPM
device-mapper-multipath-0.4.7-30.el5.src.rpm	SHA-256: 016fabdf9d0f80057735ccc4b8df458495dc0940b7f022aca42d550eac4f9aa7
x86_64
device-mapper-multipath-0.4.7-30.el5.x86_64.rpm	SHA-256: 3816829aac8e297ba76f92d66a93f1e45142bd3521cac7a6ab7683aaf6d55e92
kpartx-0.4.7-30.el5.x86_64.rpm	SHA-256: 99eb643375ed6900a8054696d8f2d96cc8734f90765c11e7ffbab2d7393ad9e0
i386
device-mapper-multipath-0.4.7-30.el5.i386.rpm	SHA-256: 533e3ceef32cf6b4f575d4a855f0170c52ecbf4e2c8444a55acf9f222d743a43
kpartx-0.4.7-30.el5.i386.rpm	SHA-256: 0f4f94fa79a8e94c06e72f511e61aa9899ed46868538628ed7c86899782c385c

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
device-mapper-multipath-0.4.7-30.el5.src.rpm	SHA-256: 016fabdf9d0f80057735ccc4b8df458495dc0940b7f022aca42d550eac4f9aa7
s390x
device-mapper-multipath-0.4.7-30.el5.s390x.rpm	SHA-256: 5f81151b394ade5254d63fd2e96599befdafbee07da38e38776edf18070d1f2d
kpartx-0.4.7-30.el5.s390x.rpm	SHA-256: 6994e7f623124a44e559e5b84670e89280f51920cd3e9412508d929acb86b789

Red Hat Enterprise Linux for Power, big endian 5

SRPM
device-mapper-multipath-0.4.7-30.el5.src.rpm	SHA-256: 016fabdf9d0f80057735ccc4b8df458495dc0940b7f022aca42d550eac4f9aa7
ppc
device-mapper-multipath-0.4.7-30.el5.ppc.rpm	SHA-256: dd30ac108077222c92a7530ba5b06089efce640e6f9d40e363a9be1aa9220d83
kpartx-0.4.7-30.el5.ppc.rpm	SHA-256: f1a864302ce13e203e6dad758ebfde5aebec7e5a40b13d8a45fb280927382cf7

Red Hat Enterprise Linux Server from RHUI 5

SRPM
device-mapper-multipath-0.4.7-30.el5.src.rpm	SHA-256: 016fabdf9d0f80057735ccc4b8df458495dc0940b7f022aca42d550eac4f9aa7
x86_64
device-mapper-multipath-0.4.7-30.el5.x86_64.rpm	SHA-256: 3816829aac8e297ba76f92d66a93f1e45142bd3521cac7a6ab7683aaf6d55e92
kpartx-0.4.7-30.el5.x86_64.rpm	SHA-256: 99eb643375ed6900a8054696d8f2d96cc8734f90765c11e7ffbab2d7393ad9e0
i386
device-mapper-multipath-0.4.7-30.el5.i386.rpm	SHA-256: 533e3ceef32cf6b4f575d4a855f0170c52ecbf4e2c8444a55acf9f222d743a43
kpartx-0.4.7-30.el5.i386.rpm	SHA-256: 0f4f94fa79a8e94c06e72f511e61aa9899ed46868538628ed7c86899782c385c