Date: Fri, 2 Apr 2004 11:59:57 -0800 From: Alfred Perlstein <alfred@freebsd.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: current@freebsd.org Subject: Re: mmap breakage? Message-ID: <20040402195957.GN26131@elvis.mu.org> In-Reply-To: <35917.1080933274@critter.freebsd.dk> References: <20040402191254.GK26131@elvis.mu.org> <35917.1080933274@critter.freebsd.dk>
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* Poul-Henning Kamp <phk@phk.freebsd.dk> [040402 11:14] wrote: > In message <20040402191254.GK26131@elvis.mu.org>, Alfred Perlstein writes: > >* Poul-Henning Kamp <phk@phk.freebsd.dk> [040402 10:40] wrote: > >> In message <20040402160959.GJ26131@elvis.mu.org>, Alfred Perlstein writes: > >> >I noticed that mplayer seems to want to open /dev/zero with RDONLY > >> >but then tries to mmap it PROT_READ+PROT_WRITE and gets rejected. > >> > >> Sounds like missing MAP_PRIVATE ? > > > >Nope, private is set. It's just that the file is opened RDONLY, > >but PROT has PROT_WRITE in it. > > That should be OK with MAP_PRIVATE as far as I interpret POLA. Ok, but it's not. :) -- - Alfred Perlstein - Research Engineering Development Inc. - email: bright@mu.org cell: 408-480-4684
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