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From: Rohith Surabattula <rohiths.msft@gmail.com>
To: Murphy Zhou <jencce.kernel@gmail.com>
Cc: linux-cifs <linux-cifs@vger.kernel.org>,
	Rohith Surabattula <rohiths@microsoft.com>
Subject: Re: [regression] lock test hang since 5.13-rc-smb3-part2
Date: Mon, 6 Sep 2021 21:17:31 +0530	[thread overview]
Message-ID: <CACdtm0ZysFcRQga8DSrVz2iKVoFmTQihLzy+QY667+i06cQgAw@mail.gmail.com> (raw)
In-Reply-To: <20210906114551.azccg5o4lh4fompe@xzhoux.usersys.redhat.com>

Can you please share the mount options.

Did you observe the same failure with 5.14-rc5-smb3-fixes ?
I ran the generic/478 test on 5.14 and didn't see any hang. But, test
fails with below

generic/478     - output mismatch (see
/home/lxsmbadmin/xfstests-dev/results//sm
                                               b3/generic/478.out.bad)
    --- tests/generic/478.out   2021-05-03 19:01:04.767577557 +0000
    +++ /home/lxsmbadmin/xfstests-dev/results//smb3/generic/478.out.bad
2021-09-
              06 15:39:39.625248615 +0000
    @@ -1,13 +1,13 @@
     QA output created by 478
     get wrlck
     lock could be placed
    -get wrlck
    -get wrlck
     lock could be placed
     get wrlck
    ...
    (Run 'diff -u /home/lxsmbadmin/xfstests-dev/tests/generic/478.out
/home/lxsm
                badmin/xfstests-dev/results//smb3/generic/478.out.bad'
 to see the entire diff)
Ran: generic/478
Failures: generic/478
Failed 1 of 1 tests

Regards,
Rohith

On Mon, Sep 6, 2021 at 5:16 PM Murphy Zhou <jencce.kernel@gmail.com> wrote:
>
> Hi,
>
> Since this commit:
>
> commit c3f207ab29f793b8c942ce8067ed123f18d5b81b
> Author: Rohith Surabattula <rohiths@microsoft.com>
> Date:   Tue Apr 13 00:26:42 2021 -0500
>
>     cifs: Deferred close for files
>
> Xfstests generic/478 on CIFS can't finish like before. The test programme
> never returns but killable. The kernel does not warn about soft or hard
> lockups. So it looks like looping forever at some point.
>
> It's always reproducible. Without this commit, generic/478 fails the test
> because of different lock schema but complete very fast. With this commit,
> test hang like forever.
>
> Sorry that I do not look further here, because I have another bisecting to
> do to hunting another regression.
>
> Thanks,
> Murphy

  reply	other threads:[~2021-09-06 15:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-06 11:45 Murphy Zhou
2021-09-06 15:47 ` Rohith Surabattula [this message]
2021-09-07  3:18   ` Murphy Zhou

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