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Re: xfstests: device busy when umount

To: Yongqiang Yang <xiaoqiangnk@xxxxxxxxx>
Subject: Re: xfstests: device busy when umount
From: Eric Sandeen <sandeen@xxxxxxxxxx>
Date: Tue, 17 May 2011 09:32:05 -0500
Cc: Ext4 Developers List <linux-ext4@xxxxxxxxxxxxxxx>, Amir Goldstein <amir73il@xxxxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
In-reply-to: <BANLkTimQW+kyqjmzpAHH_W5x2v1EWW2AZA@xxxxxxxxxxxxxx>
References: <BANLkTimQW+kyqjmzpAHH_W5x2v1EWW2AZA@xxxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv: Gecko/20110414 Thunderbird/3.1.10
On 5/17/11 4:03 AM, Yongqiang Yang wrote:
> Hi,
> I noticed that all tests which contain 'device busy' errors have
> falloc operations.  Does the error have something to do with falloc?

cc'ing xfs list since xfs devs maintain xfstests.

What tests have "device busy" errors?  What do the usual investigative
steps such as "lsof" and "fuser" tell you when this happens?

Are there loop devices that didn't get cleaned up, or processes that
have not terminated?

What tests have these problems?


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