From: Nicholas Miell <nmiell@comcast.net>
To: Badari Pulavarty <pbadari@us.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: mmap64() behaviour on 64-bit machines ?
Date: Tue, 22 Nov 2005 12:21:21 -0800 [thread overview]
Message-ID: <1132690881.2854.6.camel@entropy> (raw)
In-Reply-To: <1132677293.24066.242.camel@localhost.localdomain>
On Tue, 2005-11-22 at 08:34 -0800, Badari Pulavarty wrote:
> Hi,
>
> I am confused on the behaviour of mmap64() on 64-bit machines.
> When I run following simple program, I get SIGSEGV in memset().
> But if I replace mmap64() with mmap() - it works fine.
> I verified this on ppc64, em64t, amd64.
>
> Whats happening here ? Any clues ?
If I fix all the compiler warnings, it works for me.
Also, mmap/mmap64 return MAP_FAILED on failure, not 0, but the compiler
doesn't know to warn about that.
--
Nicholas Miell <nmiell@comcast.net>
prev parent reply other threads:[~2005-11-22 20:21 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-22 16:34 mmap64() behaviour on 64-bit machines ? Badari Pulavarty
2005-11-22 20:21 ` Nicholas Miell [this message]
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