[mvapich-discuss] Fwd: Announcing the release of BLCR 0.8.1 (fwd)

[Dhabaleswar Panda]

Recently, an error was reported by an MVAPICH2 user while carrying out
Checkpoint-Restart with BLCR 0.8.0. This problem has been solved in the
new BLCR 0.8.1 release. If you are using MVAPICH2 with BLCR, please
upgrade your BLCR installation to this latest 0.8.1 release.

Thanks,

DK


---------- Forwarded message ----------
From: Paul H. Hargrove <PHHargrove at lbl.gov>
Date: Thu, Mar 26, 2009 at 3:37 AM
Subject: Announcing the release of BLCR 0.8.1
To: "checkpoint at lbl.gov" <checkpoint at lbl.gov>


I am pleased to announce the release of Berkeley Lab Checkpoint/Restart
(BLCR) version 0.8.1, which is now available from the BLCR Downloads
page: http://ftg.lbl.gov/CheckpointRestart/CheckpointDownloads.shtml

Relative to 0.8.0 this release extends support to 2.6.29 kernels and
fixes several bugs. Â A summary of the user-visible changes in BLCR,
relative to 0.8.0, appears below in the form of an excerpt from the NEWS
file.

-Paul

NEWS:
0.8.1
-----------
March 25, 2009
Bug fix and expanded-support release.
 - This release adds support for 2.6.29 kernels.
 - The final known xen-specific bug (2457) has been found to be a Xen bug.
  Xen 3.1.2 or newer is recomended when using BLCR.
 - This release makes the following libcr API additions/changes:
  + Increase CR_MAX_CALLBACK from 32 to 32 million.
 - This release adds additional error checking and improved documentation
  for error cases for the following libcr functions:
  + cr_register_callback()
  + cr_replace_callback()
  + cr_register_hook()
 - This release fixes the following user-visible bugs and "issues"
  + 2508 - inconsistent metadata from a networked file system
  + 2520 - possible deadlock when using some functions with critical sections
  + 2524 - restart-time SEGV on powerpc with 2.6.15 or older kernel
  + 2525 - process deadlock on checkpoint after restart
2525 - This was the cause of the issue.

  + 2526 - process deadlock between omit and forward operations
  + C++ scoping problem for "struct cr_rstrt_relocate_pair"
  + Correct a bug that would reset the persist count across checkpoints
  + Prevent "stuck" tests when TOSTOP bit is set in termios.c_lflag.
  + Correct flaws in tests "prctl" and "stage0002" that could yield false
    failures under certain conditions



--
Paul H. Hargrove                          PHHargrove at lbl.gov
Future Technologies Group                 Tel: +1-510-495-2352
HPC Research Department                   Fax: +1-510-486-6900
Lawrence Berkeley National Laboratory