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Date:      Wed, 3 Feb 1999 20:17:48 -0500 (EST)
From:      Brian Feldman <green@unixhelp.org>
To:        Matthew Dillon <dillon@apollo.backplane.com>
Cc:        current@FreeBSD.ORG
Subject:   Re: Heads up: comitted optimization to vm_map_insert()
Message-ID:  <Pine.BSF.4.05.9902032015220.3060-100000@janus.syracuse.net>
In-Reply-To: <199902030515.VAA43044@apollo.backplane.com>

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On Tue, 2 Feb 1999, Matthew Dillon wrote:

>     I've comitted an optimization to vm_map_insert() after initial 
>     tests seemed to indicate that it works.  Basically it allows
>     OBJT_SWAP objects to be optimized in addition to OBJT_DEFAULT
>     objects already optimized in certain specific cases.
> 
>     However, a followup test that I had never run before had a
>     temporary seg-fault ( i.e. it didn't repeat when I re-ran
>     the test ).  I think the seg fault may have revealed a new
>     bug and is not related to the optimization I comitted, so I
>     haven't backed out the commit.  I am not 100% sure though,
>     and I am testing this now.

   What test? If we had this exact test, it could be exploiting the exact bug,
could it not? I'll let you know of any weird crashes in previously stable
programs.

> 
>     If anyone notices weird seg-faulting that didn't occur before
>     tonight, please notify me!

   Will do! CPU_WT_ALLOC actually seemed to have caused instability before...

> 
> 					-Matt
> 					Matthew Dillon 
> 					<dillon@backplane.com>
> 
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