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Date:      Fri, 11 Sep 1998 12:13:33 -0700
From:      Mike Smith <mike@smith.net.au>
To:        Alexander Litvin <archer@lucky.net>
Cc:        Mike Smith <mike@smith.net.au>, current@FreeBSD.ORG
Subject:   Re: ELF world and MFS / groff issues 
Message-ID:  <199809111913.MAA01071@dingo.cdrom.com>
In-Reply-To: Your message of "Fri, 11 Sep 1998 18:05:26 %2B0300." <199809111505.SAA07287@grape.carrier.kiev.ua> 

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> In article <199809062116.OAA10046@word.smith.net.au> you wrote:
> >> Seems to have done the trick, nice one... from what I can see on the CVS
> >> repository, it seems this is a new vop (no trace of it in previous versions
> >> of mfs_vnops.c); is this an attempt at optimising block deallocation?
> >> 
> >> While I'm at it :
> >> 
> >> if CFLAGS/COPTFLAGS are changed to -O3 -m486 -pipe, an ELF make world will
> >> produce somewhat weird versions of groff / troff:
> 
> MS> -O3 is known to produce broken code.  Don't use it.
> 
> I noticed that kernel on my CURRENT, when compiled with -O0,
> panics with "Supervisor read: page not present" in a few seconds
> after boot. Is it also known?

What's "-O0" supposed to do?
-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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