mmap breakage?

Alfred Perlstein alfred at freebsd.org
Fri Apr 2 11:59:57 PST 2004


* Poul-Henning Kamp <phk at phk.freebsd.dk> [040402 11:14] wrote:
> In message <20040402191254.GK26131 at elvis.mu.org>, Alfred Perlstein writes:
> >* Poul-Henning Kamp <phk at phk.freebsd.dk> [040402 10:40] wrote:
> >> In message <20040402160959.GJ26131 at 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 at mu.org cell: 408-480-4684


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