[cr][git]linux-cr branch, ckpt-v17-rc1, updated. v2.6.27-rc5-45617-g5a33cf3

orenl at cs.columbia.edu orenl at cs.columbia.edu
Fri Jul 10 10:02:07 PDT 2009


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The branch, ckpt-v17-rc1 has been updated
       via  5a33cf3bbc06f823f40bc4c3ffdf1d1325ff685e (commit)
      from  dd07449e47df4bc59968e82b3a0e60f103b804cd (commit)

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- Log -----------------------------------------------------------------
commit 5a33cf3bbc06f823f40bc4c3ffdf1d1325ff685e
Author: Oren Laadan <orenl at laadan.org>
Date:   Fri Jul 10 12:14:46 2009 -0400

    c/r: restore_retval() only for restarting tasks (not coordinator)
    
    restore_retval() digs out the old restore value (from checkpoint time)
    to ensure that a restarting tasks gives the correct retval.
    
    The coordinator should not replace it's own retval, of course. This
    fixes weird -ENOSYS seen at times after a restart by mktree.
    
    One exception is when the coordinator is also a restarting task, as
    is the case with self-restart (RESTART_TASKSELF).
    
    Finally, if a restarting tasks fails to restart, it will send a
    SIGKILL to itself, because otherwise a partial restore usually leaves
    the process in an undefined state.
    
    Signed-off-by: Oren Laadan <orenl at cs.columbia.edu>

-----------------------------------------------------------------------

Summary of changes:
 checkpoint/restart.c |   28 +++++++++++++++++++++++++---
 checkpoint/sys.c     |    9 ---------
 2 files changed, 25 insertions(+), 12 deletions(-)


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