Re: [Qemu-devel] [PATCH] exec: silence hugetlbfs warning under qtest

[Daniel P. Berrange]

On Mon, Nov 23, 2015 at 07:01:33PM +0100, Marc-André Lureau wrote:
> On Mon, Nov 23, 2015 at 6:40 PM, Paolo Bonzini <address@hidden> wrote:
> > 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?
> 
> Yes, without the swap, qtest was not initialized before memory is allocated.
> 
> The alternative I could think of is to check the QTEST_QEMU_BINARY
> variable: 
> http://lists.nongnu.org/archive/html/qemu-devel/2015-11/msg01527.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
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