From: Jens Axboe <jens.axboe@oracle.com>
To: Ken D'Ambrosio <ken@jots.org>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: btrfs/iSCSI/sparse file OOPS.
Date: Thu, 15 Oct 2009 09:06:09 +0200 [thread overview]
Message-ID: <20091015070608.GC9228@kernel.dk> (raw)
In-Reply-To: <83af81d492eb76684573e83bcae78a23.squirrel@webmail.jots.org>
On Tue, Oct 13 2009, Ken D'Ambrosio wrote:
> Hey, all. I've tried repeatedly to get an 800 GB sparse file on a 1 TB
> btrfs partition to work as an iSCSI target... and I can run fdisk on it
> (and see the iSCSI disk just fine), but when I try to create a partition
> and exit, it OOPSes every time. Ubuntu, kernel 2.6.31-13-generic is the
> latest I've tried. Is this a known bug? I've tried Googling to no avail.
> If there's anything I can do to help troubleshoot, please let me know.
>
> Thanks!
>
> -Ken
>
> P.S. FYI, tried the same thing on a reiserfs partition on the same
> system, worked fine.
Looks like that iscsi target relies on having fops->aio_write() there,
which btrfs doesn't have. It's a bug in the iscsi driver.
--
Jens Axboe
next prev parent reply other threads:[~2009-10-15 7:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-13 16:40 btrfs/iSCSI/sparse file OOPS Ken D'Ambrosio
2009-10-15 6:39 ` Sander
2009-10-15 7:06 ` Jens Axboe [this message]
2009-10-15 8:09 ` Tomasz Chmielewski
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