Query regarding core dump file in linux

Bibek1602 · 03-14-2012, 06:52 AM

Hi All,

We know that core dump files are generated when a process crashes.
I want to know that if we ourselves create dump files when a process is healthy and running and save it in some location , then can we start the process again from the point when the dump file was created by using the information in the dump file ?

And what all information is actually saved in the dump file regarding the process ??

Any help is greatly appreciated..Thanks

ssevercan · 03-15-2012, 04:22 AM

you can create core file fro running process with kill command
kill -s SIGABRT <process ID of victim process>
before using this command you should check limit of core file size. default core file size is 0. set unlimitid with ulimit -c unlimited ( for current shell only)

Bibek1602 · 03-16-2012, 03:54 AM

Thanks for the reply.
I know that we can create it by killing the process. Is there any way to create a core dump for the processes while they are running and without getting them killed ?
Can we use the core dump info to restart a process from where it had created the core dump file ??

ssevercan · 03-22-2012, 02:19 AM

as far as i know you can't ( both of them )