From owner-cvs-all  Sat Jul  8 19:32:33 2000
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Date: Sat, 8 Jul 2000 22:32:25 -0400 (EDT)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: John Polstra <jdp@FreeBSD.org>
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Subject: cvs commit: src/libexec/rtld-elf rtld.c rtld.h lockdflt.c
         src/libexec/rtld-elf/alpha lockdflt.c rtld_machdep.h rtld_start.S
         src/libexec/rtld-elf/i386 lockdflt.c rtld_machdep.h
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<<On Fri, 7 Jul 2000 21:10:38 -0700 (PDT), John Polstra <jdp@FreeBSD.org> said:

>   spinlocks I used the very nifty "simple, non-scalable reader-preference
>   lock" which I found at
  
>     <http://www.cs.rochester.edu/u/scott/synchronization/pseudocode/rw.html>
  
>   on all CPUs except the 80386 (the specific CPU model, not the
>   architecture).  The 80386 CPU doesn't support the necessary "cmpxchg"

Another reason why we should stop supporting the '386.

-GAWollman



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