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	Sat, 20 Sep 1997 09:41:55 +0930 (CST)
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Date: Sat, 20 Sep 1997 09:41:55 +0930
From: Greg Lehey <grog@lemis.com>
To: Terry Lambert <tlambert@primenet.com>
Cc: nsmart@iona.com, Don.Lewis@tsc.tdk.com, hackers@FreeBSD.ORG,
        freebsd-bugs@FreeBSD.ORG
Subject: Re: Bug in malloc/free
References: <19970920080554.38866@lemis.com> <199709192349.QAA19815@usr04.primenet.com>
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In-Reply-To: <199709192349.QAA19815@usr04.primenet.com>; from Terry Lambert on Fri, Sep 19, 1997 at 11:49:06PM +0000
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On Fri, Sep 19, 1997 at 11:49:06PM +0000, Terry Lambert wrote:
>>> When a read or write fault occurs on page zero in a program running
>>> on SVR4, rather than crashing, they map the page and note the effect.
>
> [ ... ]
>
>> It's not just incorrect, it's inconsistent.  Some SVR4 do, some SVR4
>> don't.
>
> Sorry dude, but if it's derived from USL sources, it does this,
> unless they've specifically taken it out.

If you say so.  Then they've specifically taken it out.

> If so, then they are probably paying a huge royalty increment for
> the priveledge, since you pay more (by a factor of 10) for not being
> exactly their sources for everything but drivers.

*All* the SVR4 systems I know deviate elsewhere than the drivers.

> Seems kind of a petty reason to page huge royalties...

Yes, that's the impression that Tandem had too.  But how can you ship
a product that's full of bugs?

Greg