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Re: How to run xfstests against multipath disks on SuSE?

To: Ryan Wang <openspace.wang@xxxxxxxxx>
Subject: Re: How to run xfstests against multipath disks on SuSE?
From: Lukáš Czerner <lczerner@xxxxxxxxxx>
Date: Mon, 26 Nov 2012 14:43:40 +0100 (CET)
Cc: linux-ext4@xxxxxxxxxxxxxxx, "Theodore Ts'o" <tytso@xxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <CAPxxNQmwX+TmJ=B-H0f+bzpx5JdijyyRrxCAAZRi9+c8HjQL9Q@xxxxxxxxxxxxxx>
References: <CAPxxNQmwX+TmJ=B-H0f+bzpx5JdijyyRrxCAAZRi9+c8HjQL9Q@xxxxxxxxxxxxxx>
User-agent: Alpine 2.00 (LFD 1167 2008-08-23)
On Mon, 26 Nov 2012, Ryan Wang wrote:

> Date: Mon, 26 Nov 2012 08:00:05 +0800
> From: Ryan Wang <openspace.wang@xxxxxxxxx>
> To: linux-ext4@xxxxxxxxxxxxxxx, Theodore Ts'o <tytso@xxxxxxx>
> Subject: How to run xfstests against multipath disks on SuSE?

Maybe cc xfstests developers as well ?

xfs@xxxxxxxxxxx added to cc.

> 
> Hello,
> 
> I tried to kick off xfstests on multipath device, e.g I set
> TEST_DEV="/dev/mapper/mpatha", which is a symlink
> to "/dev/dm-0". I run mkfs on mpatha beforehand.
> 
> When I run "./check 001", it said:
> "
> common.rc: Error: $TEST_DEV (/dev/dm-0) is not a MOUNTED ext4 filesystem
> "
> 
> The I checked the script common.rc, and found that it uses
> df to determine the filesystem type and it uses the realpath
> "/dev/dm-0" instead of "/dev/mapper/mpatha", while df always
> shows "devtmpfs" instead of "ext4" for /dev/dm-0.
> 
> I run "mount" and found that devtmpfs is mount on /dev/ on opensuse
> ***by default***. Even though  I run "mount -t btrfs /dev/dm-0 /somedir",
> df still showed devtmpfs.
> 
> Any ideas to kick off the xfstests?
> 
> thanks,
> --
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