Date: Sat, 16 Mar 1996 09:12:37 +0000 () From: "John S. Dyson" <toor@dyson.iquest.net> To: jkh@time.cdrom.com (Jordan K. Hubbard) Cc: dawes@rf900.physics.usyd.edu.au, sos@FreeBSD.org, dyson@FreeBSD.org, current@FreeBSD.org, mmead@Glock.COM Subject: Re: Try this vm_mmap.c -- please Message-ID: <199603160912.JAA04855@dyson.iquest.net> In-Reply-To: <244.826979789@time.cdrom.com> from "Jordan K. Hubbard" at Mar 16, 96 04:36:29 am
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>
> > Does accelx by any chance use MAP_PRIVATE?
>
> Bingo!
>
> Between David's comment here and John's own comment in the latest
> vm_mmap.c he sent out which says:
>
> * On device mmaps we default to map shared -- makes the most
> * sense in this case. Does MAP_PRIVATE even make sense on
> * devices mmaps???
>
> I made the following change:
>
> if ((type == OBJT_DEVICE)) {
> if (flags & (MAP_PRIVATE|MAP_SHARED) == 0)
> flags |= MAP_SHARED;
> else if (flags & MAP_PRIVATE)
> flags &= ~MAP_PRIVATE;
> }
>
I should be able to commit the "fix" early tonite (about 5:00 PM EST), if
someone else doesn't get to it before me. Thanks everyone for helping
narrow this one down!!!
John
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