Date: Fri, 27 Jan 95 13:58:41 MST From: terry@cs.weber.edu (Terry Lambert) To: wollman@halloran-eldar.lcs.mit.edu (Garrett Wollman) Cc: freebsd-hackers@FreeBSD.org Subject: Re: Help with SCSI development (fwd) Message-ID: <9501272058.AA00342@cs.weber.edu> In-Reply-To: <9501272001.AA12096@halloran-eldar.lcs.mit.edu> from "Garrett Wollman" at Jan 27, 95 03:01:25 pm
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> <<On Fri, 27 Jan 95 10:26:52 MST, terry@cs.weber.edu (Terry Lambert) said:
>
> > In effect, the NFS nfsd and biod processes, which make system calls and
> > never return, as well as the swapper and update daemons, are in effect
> > kernel threads, albiet threads with a proc structure attached to them
> > for no good reason.
>
> UTSL. `nfssvc' does return for `nfsd' to perform authentication.
Logically, isn't this more of a kernel callback to a user space routine
that was preregistered ("authenticate") than a real return? In response,
the daemon immediately recalls, returning the thread of control to kernel
space.
Terry Lambert
terry@cs.weber.edu
---
Any opinions in this posting are my own and not those of my present
or previous employers.
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