Re: using blcr on program with fork

From: Andrea Autiero S143785 (
Date: Wed Feb 25 2009 - 01:05:06 PST

  • Next message: Paul H. Hargrove: "Re: using blcr on program with fork"
    i'm using shared memory in my program
    removing every line refering to them let blcr checkpoint my applications..
    could be this the problem?
    On Mon, 23 Feb 2009 13:50:39 -0800, "Paul H. Hargrove" <PHHargrove_at_lbl_dot_gov>
    > Andrea,
    >   I cannot tell from the information you have provided what the problem 
    > might be.  If I construct a simple example program that behaves as you 
    > describe, and I compile it as you describe, then I am able to checkpoint 
    > it and restart it just fine.
    >   Could you please check the output of the "dmesg" command and/or your 
    > system logs to see if there are any kernel messages that might help 
    > explain the failure.
    > -Paul
    > Andrea Autiero S143785 wrote:
    >> hi!
    >> it's me another time..
    >> after made statically linked file with blcr I've got another problem..
    >> I'm trying to checkpoint a program after it forks twice
    >> then from another shell (but in the future it will be done by the
    >> itself)
    >> i try to checkpoint it and the answer is:
    >>  >ps -a
    >>    PID TTY          TIME CMD
    >>    5878 pts/0    00:00:00 controller
    >>    5879 pts/0    00:00:02 controller
    >>    5880 pts/0    00:00:02 controller
    >>    5881 pts/1    00:00:00 ps
    >>  >cr_checkpoint 5878
    >> Checkpoint failed: Invalid argument
    >> 5878 is the father..
    >> i've compiled it by 
    >>     >gcc -o controller controller.c -L/usr/local/lib/ -lcr_run -u
    >> cr_run_link_me -ldl -lpthread
    >>     >nm controller | grep _link_me
    >>          U cr_run_link_me
    >> (now is not statically linked because I'm trying on a pc and not on an
    >> embedded system, but is in the last one that it must work)
    >> why it do this?could you help me to make it works?
    >> thanks..
    >> have a good day
    >> Andrea Autiero

  • Next message: Paul H. Hargrove: "Re: using blcr on program with fork"