On executing system calls,does control jumps to kernel...
 

Hi guys,When a process invokes a system call,does the control jumps to kernel in order to execute kernel instructions?
Thanks

Yeah. Something like that. :) http://www.tldp.org/HOWTO/html_singl....6-i386/#AEN19
http://en.wikipedia.org/wiki/System_call

I believe control jumps to the shell that the process making the system call originated from - in which case, the a tertiary process is spawned.

EDIT: Do you, perhaps, mean a system call through a system() function?

Yes. An application program issues a system call instruction which the kernel catches and executes.

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Steve Stites