Date: Mon, 07 Dec 1998 16:27:21 -0800 From: Mike Smith <mike@smith.net.au> To: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> Cc: bde@zeta.org.au (Bruce Evans), freebsd-current@FreeBSD.ORG Subject: Re: sio breakage Message-ID: <199812080027.QAA01208@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 07 Dec 1998 14:59:40 PST." <199812072259.OAA26700@GndRsh.aac.dev.com>
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> ...
> >
> > something()
> > {
> > asm("cli");
> > asm("sti");
> > }
> >
> ...
> >
> > Fixes:
> > kernel: send a fatal signal to applications that do this.
> > applications: don't do this. If interrupts must be disabled, then all
> > critical code and data must be within one page.
>
> Do we have the equivelent of the VMS wire(memory_range) call so that
> programs can force thier critical code sections to be non page faultable?
mlock()
--
\\ 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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