From: Jamie Lokier <jamie@shareable.org>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Re: [PATCH 1/6] Use correct types to enable > 2G support
Date: Fri, 1 Feb 2008 17:35:40 +0000 [thread overview]
Message-ID: <20080201173540.GA14032@shareable.org> (raw)
In-Reply-To: <47A308DB.3040204@gmail.com>
Robert William Fuller wrote:
> Linux doesn't commit mapped memory until it's faulted. As for other
> platforms, who knows?
Correction: most Linux installations don't commit mapped memory until
it's faulted. A few do, as a matter of policy (it depends on kernel
settings), so that applications won't randomly crash when too much
memory is faulted, but will return 0 from malloc() earlier.
For those few systems, use MAP_NORESERVE if you still need to allocate
the address space.
-- Jamie
next prev parent reply other threads:[~2008-02-01 19:07 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-31 22:36 [Qemu-devel] [PATCH 0/6] Support for the Kernel Virtual Machine interface Anthony Liguori
2008-01-31 22:36 ` [Qemu-devel] [PATCH 1/6] Use correct types to enable > 2G support Anthony Liguori
2008-01-31 23:54 ` [Qemu-devel] " Paul Brook
2008-02-01 0:25 ` Anthony Liguori
2008-02-01 0:37 ` Paul Brook
2008-02-01 0:40 ` Anthony Liguori
2008-02-01 10:26 ` Fabrice Bellard
2008-02-01 14:35 ` Anthony Liguori
2008-02-01 15:13 ` Avi Kivity
2008-02-01 11:56 ` Robert William Fuller
2008-02-01 16:09 ` M. Warner Losh
2008-02-01 16:47 ` Philip Boulain
2008-02-01 17:35 ` Jamie Lokier [this message]
2008-02-01 15:33 ` [Qemu-devel] Re: [kvm-devel] " Anthony Liguori
2008-02-01 15:40 ` Ian Jackson
2008-02-01 17:53 ` [kvm-devel] [Qemu-devel] " Anthony Liguori
2008-02-01 17:57 ` Daniel P. Berrange
2008-02-01 20:31 ` Anthony Liguori
2008-02-01 21:33 ` Paul Brook
2008-02-01 16:00 ` Paul Brook
2008-02-01 16:21 ` Fabrice Bellard
2008-02-05 11:34 ` Ian Jackson
2008-02-01 17:49 ` [Qemu-devel] Re: [kvm-devel] " Anthony Liguori
2008-02-03 8:58 ` Izik Eidus
2008-01-31 22:36 ` [Qemu-devel] [PATCH 2/6] SCI fixes Anthony Liguori
2008-01-31 22:36 ` [Qemu-devel] [PATCH 3/6] Fix daemonize options Anthony Liguori
2008-01-31 22:36 ` [Qemu-devel] [PATCH 4/6] Tell BIOS about the number of CPUs Anthony Liguori
2008-02-01 0:14 ` [Qemu-devel] " Paul Brook
2008-02-01 0:28 ` Anthony Liguori
2008-02-01 0:40 ` Paul Brook
2008-01-31 22:36 ` [Qemu-devel] [PATCH 5/6] Refactor option ROM loading Anthony Liguori
2008-01-31 22:36 ` [Qemu-devel] [PATCH 6/6] QEMU support for the Kernel Virtual Machine interface Anthony Liguori
2008-02-01 9:49 ` [Qemu-devel] " Fabrice Bellard
2008-02-01 14:18 ` Anthony Liguori
2008-01-31 22:53 ` [qemu-devel] [PATCH 0/6] Support " Anthony Liguori
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