From: Christoph Hellwig <hch@infradead.org>
To: Spelic <spelic@shiftmail.org>
Cc: linux-lvm@redhat.com,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
xfs@oss.sgi.com
Subject: Re: [linux-lvm] Bugs in mkfs.xfs, device mapper, xfs, and /dev/ram
Date: Thu, 2 Dec 2010 09:11:34 -0500 [thread overview]
Message-ID: <20101202141134.GA22012@infradead.org> (raw)
In-Reply-To: <4CF7A539.1050206@shiftmail.org>
I'm pretty sure you have CONFIG_DEBUG_BLOCK_EXT_DEVT enabled. This
option must never be enabled, as it causes block devices to be
randomly renumered. Together with the ramdisk driver overloading
the BLKFLSBUF ioctl to discard all data it guarantees you to get
data loss like yours.
next prev parent reply other threads:[~2010-12-02 14:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-02 13:55 [linux-lvm] Bugs in mkfs.xfs, device mapper, xfs, and /dev/ram Spelic
2010-12-02 14:11 ` Christoph Hellwig [this message]
2010-12-02 14:14 ` Spelic
2010-12-02 14:17 ` Christoph Hellwig
2010-12-02 21:22 ` Mike Snitzer
2010-12-02 22:08 ` Mike Snitzer
2010-12-03 17:11 ` Nick Piggin
2010-12-03 18:15 ` Ted Ts'o
2010-12-02 14:14 ` Spelic
2010-12-02 23:07 ` Dave Chinner
2010-12-03 14:07 ` Spelic
2010-12-06 4:09 ` Dave Chinner
2010-12-06 12:20 ` [linux-lvm] NFS corruption on ENOSPC (was: Re: Bugs in mkfs.xfs, device mapper, xfs, and /dev/ram) Spelic
2010-12-06 13:33 ` Trond Myklebust
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