*BSD News Article 44404


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From: tls@cloud9.net (Thor Lancelot Simon)
Newsgroups: comp.unix.bsd.netbsd.misc
Subject: Re: Does NetBSD support for multi-CPU (Sparc ) ?
Date: 17 May 1995 07:27:37 GMT
Organization: Cloud 9 Internet, White Plains, New York, USA
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References: <3p9j29$23v@netnews.ntu.edu.tw> <3parjn$gtd@crl.crl.com> <3patb8$olv@park.uvsc.edu>
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In article <3patb8$olv@park.uvsc.edu>,
Terry Lambert  <terry@cs.weber.edu> wrote:
>
>"Threadsafing the kernel" is kind of misleading.  You can start
>with low granularity SMP where the kernel itself is still allowed
>to run only once (with mutex enforcement of reentrancy at the
>system call level).  This would buy immediate parallel benefits
>for code executing in user space, with only changes to the task
>and system call/trampoline code being necessary.

This is exactly what SunOS 4 does.

-- 
Thor Lancelot Simon                                               tls@cloud9.net

Somewhere they're meeting on a pinhead, calling you an angel.