Issued:
2011-03-14
Updated:
2011-03-14

RHBA-2011:0354 - dapl bug fix and enhancement update

Synopsis

dapl bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated dapl packages that fix several bugs and add provider entries to the dat.conf are now available.

Description

dapl provides a userspace implementation of the DAT 2.0 API and is built to natively support InfiniBand and iWARP network technology.

This update addresses the following bugs:

  • Under certain error conditions dapl did not allow the cp_ptr entry to be cleaned up correctly in the internal link list. This could cause new connections to fail. With this update, the entry is cleaned up correctly and subsequent connections work as expected. (BZ#673989)

  • Under certain error conditions dapl could fail to free allocated memory. The consequent memory leak could, potentially, result in an out of memory condition for the application. This update frees allocated memory correctly, closing the leak. (BZ#673993)

  • Under certain circumstances, when a thread was waiting on dapls_evd_dto_wait() and the thread received a signal, the function would return an incorrect error code, resulting in the application failing rather than retrying the request. (BZ#675198)

  • On systems with multiple InfiniBand (IB) adapters, especially if some were configured and some not, the dat_ia_open() function could hang when the driver queried the IB devices listed in /etc/dat.conf. This primarily presented as IBM DB2 installations hanging before they completed. With this update, the dat_ia_open() hang has been fixed and IBM DB2 installations, in particular, now succeed as expected. (BZ#675205)

This update also adds the following enhancement:

  • New provider entries for Mellanox RDMA over Converged Ethernet (RoCE) devices were added to the dat.conf file. (BZ#675202)

Users should upgrade to these updated packages, which fix these issues.

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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64

Updated Packages

  • dapl-2.0.25-5.el6_0.2.src.rpm
  • dapl-utils-2.0.25-5.el6_0.2.x86_64.rpm
  • dapl-2.0.25-5.el6_0.2.x86_64.rpm
  • dapl-devel-2.0.25-5.el6_0.2.ppc64.rpm
  • dapl-2.0.25-5.el6_0.2.ppc64.rpm
  • dapl-debuginfo-2.0.25-5.el6_0.2.x86_64.rpm
  • dapl-devel-2.0.25-5.el6_0.2.ppc.rpm
  • dapl-utils-2.0.25-5.el6_0.2.ppc64.rpm
  • dapl-debuginfo-2.0.25-5.el6_0.2.ppc.rpm
  • dapl-2.0.25-5.el6_0.2.ppc.rpm
  • dapl-debuginfo-2.0.25-5.el6_0.2.ppc64.rpm
  • dapl-static-2.0.25-5.el6_0.2.ppc64.rpm
  • dapl-devel-2.0.25-5.el6_0.2.x86_64.rpm
  • dapl-static-2.0.25-5.el6_0.2.x86_64.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information