From: Chris Samuel <chris@csamuel.org>
To: linux-btrfs@vger.kernel.org
Subject: Re: btrfs device stats /dev/mapper/ext4 SEGV
Date: Sat, 10 Aug 2013 23:56:06 +1000 [thread overview]
Message-ID: <1384122.xvVNAvLv2n@quad> (raw)
In-Reply-To: <201308101907.50539.russell@coker.com.au>
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On Sat, 10 Aug 2013 07:07:50 PM Russell Coker wrote:
> I can repeatedly get the following SEGV from running "btrfs device stats" on
> a device node for an Ext3/4 filesystem. This happens with the version of
> the code downloaded from the above GIT repository as well as with an older
> version. Obviously the command in question is not going to do anything
> useful when run against a non-BTRFS filesystem, but it should do something
> other than crash.
The code calls btrfs_read_dev_super() on that filesystem, but it looks like the
checks are failing to detect it as not btrfs. :-(
I can reproduce the crash here too with ext3 and XFS filesystems.
--
Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC
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next prev parent reply other threads:[~2013-08-10 13:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-10 9:07 btrfs device stats /dev/mapper/ext4 SEGV Russell Coker
2013-08-10 13:56 ` Chris Samuel [this message]
2013-08-12 2:55 ` Anand Jain
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