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Date: Thu, 25 Oct 2012 14:30:40 +0200
From: Jens Axboe <axboe@kernel.dk>
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Subject: Re: Anyone doing async I/O on FreeBSD?
References: <CAEQv8RE=W_7RShF-ce1kV1V9VaFSBC4hq=QbxEy9GNHYXDo+uw@mail.gmail.com> <5088F648.4010606@kernel.dk> <9688A91D-52A1-41E8-A9BD-90486CAF8C22@cran.org.uk>
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To: Bruce Cran <bruce@cran.org.uk>
Cc: Tom Blamer <blamer@gmail.com>, fio@vger.kernel.org

On 2012-10-25 12:58, Bruce Cran wrote:
>=20
> On 25 Oct 2012, at 09:20, Jens Axboe <axboe@kernel.dk> wrote:
>=20
>> That's aio_read or aio_write returning -1/ENOSYS, which means that it's
>> not implemented. From a quick google, on FreeBSD, it seems you need to
>> have a kernel compiled with VFS_AIO enabled. Not sure why that isn't the
>> default=EF=BF=BD
>=20
>=20
> There was a discussion about it a few months ago - http://freebsd.1045724=
.n5.nabble.com/aio-in-GENERIC-td5727900.html .
> For now you need to 'kldload aio'.

Thanks Bruce, helps with somebody from the camp :-)

"Someone" should collect all these questions and turn them into an
FAQ...

--=20
Jens Axboe