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SubjectRe: Porting vfork()
   Date: Fri, 8 Jan 1999 01:06:58 -0500 (EST)
From: Kenneth Albanowski <>

On Thu, 7 Jan 1999, Perry Harrington wrote:

> I discussed this issue with Linus as well, and concluded that
> vforking within a cloned process can be achieved via putting the
> sleep_on in the task structure. I'm going to be working on this
> tonight and I'll see what I can do.

I do think a sempahore would be appropriate to avoid the
possibility of recursion.

Last time I checked BSD doesn't even fully handle the recursive
vfork() case, and thus we should not need to either. Just make sure
the kernel retains it's own internal integrity in such a case, nothing

David S. Miller

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