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From:   Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
To:     Zorro Lang <zlang@redhat.com>
CC:     "fstests@vger.kernel.org" <fstests@vger.kernel.org>,
        Linux NFS Mailing List <linux-nfs@vger.kernel.org>,
        Chuck Lever III <chuck.lever@oracle.com>,
        "djwong@vger.kernel.org" <djwong@vger.kernel.org>,
        "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>
Subject: Re: generic/650 makes v6.0-rc client unusable
Thread-Topic: generic/650 makes v6.0-rc client unusable
Thread-Index: AQHY8/KDAlsuTLAdeUqIt7enJlIXlA==
Date:   Wed, 9 Nov 2022 04:19:53 +0000
Message-ID: <20221109041951.wlgxac3buutvettq@shindev>
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On Sep 04, 2022 / 21:15, Zorro Lang wrote:
> On Sat, Sep 03, 2022 at 06:43:29PM +0000, Chuck Lever III wrote:
> > While investigating some of the other issues that have been
> > reported lately, I've found that my v6.0-rc3 NFS/TCP client
> > goes off the rails often (but not always) during generic/650.
> >=20
> > This is the test that runs a workload while offlining and
> > onlining CPUs. My test client has 12 physical cores.
> >=20
> > The test appears to start normally, but then after a bit
> > the NFS server workload drops to zero and the NFS mount
> > disappears. I can't run programs (sudo, for example) on
> > the client. Can't log in, even on the console. The console
> > has a constant stream of "can't rotate log: Input/Output
> > error" type messages.

I also observe this failure when I ran fstests using btrfs on my HDDs.
The failure is recreated almost always.

> >=20
> > I haven't looked further into this yet. Actually I'm not
> > quite sure where to start looking.
> >=20
> > I recently switched this client from a local /home to an
> > NFS-mounted one, and that's where the xfstests are built
> > and run from, fwiw.
>=20
> If most of users complain generic/650, I'd like to exclude g/650 from the
> "auto" default run group. Any more points?

+1. I wish to remove it from the "auto" group. Since I can not login to the=
 test
machine after the failure, I suggest to put it in the "dangerous" group.

--=20
Shin'ichiro Kawasaki=