Re: Remote execution of syscalls (was Re: Syscall from Kernel Space)

From: H. Peter Anvin (hpa@zytor.com)
Date: Mon Feb 24 2003 - 20:34:21 EST


Followup to: <Pine.LNX.4.44.0302212321530.6139-100000@students.iiit.net>
By author: Prasad <prasad_s@students.iiit.net>
In newsgroup: linux.dev.kernel
>
>
> before anything else, thanx for the response, i was very much discouraged
> by the fact that i did not get any replies...
>
> coming to whats happening... lets see it this way... Theres a process (x)
> that is migrated to some other node. Now any syscall that the process (X)
> makes is to be shipped back to the originating node. Say i have a user
> thread (Y) running and receiving requests for syscall executions. And now
> if i execute a syscall, the syscall will be executed as of (Y) is
> executing it, but i want the syscall to run as if (X) is executing it!
> The process (X) still exists on the originating system, but is idle.
>

Sounds like you should let the otherwise-idle process X be the thread
that waits for the connection and issues system calls. This is
basically RPC.

        -hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
Architectures needed: cris ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
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