Announcing the release of BLCR 0.8.1

From: Paul H. Hargrove (PHHargrove_at_lbl_dot_gov)
Date: Thu Mar 26 2009 - 00:37:02 PDT

  • Next message: Karthik Gopalakrishnan: "Re: Mvapich2 checkpointing after a cr_restart fails"
    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
    Relative to 0.8.0 this release extends support to 2.6.29 kernels and
    fixes several bugs.  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
    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 
        + 2524 - restart-time SEGV on powerpc with 2.6.15 or older kernel
        + 2525 - process deadlock on checkpoint after restart
        + 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_dot_gov
    Future Technologies Group                 Tel: +1-510-495-2352
    HPC Research Department                   Fax: +1-510-486-6900
    Lawrence Berkeley National Laboratory

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