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Date: Mon, 23 Nov 2015 18:10:08 +0000
From: "Daniel P. Berrange" <berrange@redhat.com>
Message-ID: <20151123181008.GU18085@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] exec: silence hugetlbfs warning under qtest
Reply-To: "Daniel P. Berrange" <berrange@redhat.com>
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To: =?utf-8?Q?Marc-Andr=C3=A9?= Lureau <marcandre.lureau@gmail.com>
Cc: Amit Shah <amit.shah@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, QEMU <qemu-devel@nongnu.org>, Peter Maydell <peter.maydell@linaro.org>

On Mon, Nov 23, 2015 at 07:01:33PM +0100, Marc-Andr=C3=A9 Lureau wrote:
> On Mon, Nov 23, 2015 at 6:40 PM, Paolo Bonzini <pbonzini@redhat.com> wr=
ote:
> > Before: object-initial, chardev, qtest, object-late (not in the patch=
)
> >
> > After: chardev, qtest, object-initial, object-late (not in the patch)
> >
> > Objects must be initialized before chardev (except rng-egd) since in =
the
> > future chardev will need to use objects, in particular secret objects=
.
> > Was the swap intentional?
>=20
> Yes, without the swap, qtest was not initialized before memory is alloc=
ated.
>=20
> The alternative I could think of is to check the QTEST_QEMU_BINARY
> variable: http://lists.nongnu.org/archive/html/qemu-devel/2015-11/msg01=
527.html

Why do we not simply delete the warning message about the path not
being on hugetlbfs ? ie, why does QEMU try to force a policy that
a memory-file backend has to be on hugetlbfs, as opposed to on
a plain tmpfs ?  I've previously had user request that we allow
use of plain tmpfs, because they want to use vhost-user without
also using hugepages, and that could be done with plain tmpfs.

Regards,
Daniel
--=20
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