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Date:      Sun, 12 Oct 1997 22:37:47 -0700 (PDT)
From:      svincent <svincent@scf-fs.usc.edu>
To:        freebsd-bugs@freebsd.org
Message-ID:  <Pine.SV4.3.94.971012223731.2185A-120000@aludra.usc.edu>

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Date: Sun, 12 Oct 1997 22:18:31 -0700 (PDT)
From: svincent <svincent@aludra.usc.edu>
To: freebsd-smp@freebsd.org
cc: freebsd-problems@freebsd.org
Subject: 3.0-971010-SNAP ? 
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I've tried installing this, but it seems to only come up with the 
2.2.5-BETA release.

The 3.0-971010-SNAP directory seems to be containing 2.2.5-BETA stuff. 
The 3.0-971012-SNAP directory in not available to cd to. 

What's up ? 

Vince

On Sun, 12 Oct 1997, svincent wrote:

> 
> Hello,
> 
> Pavlin Radoslavov and I (S Vincent) are graduate students at USC, LA. 
> We have a distributed systems project to do, and were serious and eager  
> to do some coding for a multiprocessor system. 
> 
> We looked at the to-do list and were interested in these two things. 
> 
>  Additional run queue management. 
> 
>  *     run queue needs restructuring so that there is a per-cpu queue of
>        runnable tasks. This means that a cpu could access it's own run 
>        queue outside the kernel lock. 
> 
>  *     make shared address spaces work.. The VM system needs to know when 
>        the page tables of a "!= curproc" process might be in use on
>        another cpu (ie: check all other SMPcurproc[]'s). When modifying
>        the current process it needs to check the vmspace reference count
>        and do the appropriate IPI's to the other cpu. Locking is a problem
>        here. 
> 
> We'd be grateful to have any advice - while we get done with
> installing, tests and such things. 
> 
> S Vincent
> Pavlin Radoslavov
> 
> 
> 


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