xfstests: device busy when umount

[Amir Goldstein]

On Tue, May 17, 2011 at 5:32 PM, Eric Sandeen <sandeen at redhat.com> wrote:
> 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?

I tried running lsof | grep $TEST_DIR before umount
and I tried sleep 1 before umount and it didn't yield anything.

>
> Are there loop devices that didn't get cleaned up, or processes that
> have not terminated?
>
> What tests have these problems?

for me 124 always fails to umount, and 198 and 213 sometimes fails to umount.

>
> -Eric
>