How to solve this problem?

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From: ÍõÀÚ (brytwang_at_gmail_dot_com)
Date: Sun Jan 13 2008 - 22:40:38 PST

  • Next message: Paul H. Hargrove: "Re: berkeley checkpointing" 
    Dear Sir,
I have a problem when I want to restart my program.
I use the pipe mechanism you recommended.I fork a child to request the
restart(after the parent process exits).
In the child process, I call system("cr_restart filename") to restart my
program,but it tells "Restart failed: Device or resource busy".
In /var/log/messages or dmesg,it shows(I try several times):
[314896.808000] cr_rstrt_child [16060]:  PID conflict found by
cr_reserve_ids()
[315044.720000] cr_rstrt_child [16136]:  PID conflict found by
cr_reserve_ids()
[315771.344000] cr_rstrt_child [16320]:  PID conflict found by
cr_reserve_ids()
[316017.984000] cr_rstrt_child [16469]:  PID conflict found by
cr_reserve_ids()
I can sure that the parent process which made the checkpoint is exited.
So,I think some other processes may still run,but I can not tell why?
Thank you very much for your help.

Regards

Daniel
  • Next message: Paul H. Hargrove: "Re: berkeley checkpointing"
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