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Subject: Re: scheduling while atomic from vmci_transport_recv_stream_cb in
 3.16 kernels
From: Ben Hutchings <ben@decadent.org.uk>
To: Michal Hocko <mhocko@kernel.org>,
        "Jorgen S. Hansen" <jhansen@vmware.com>
Cc: Aditya Sarwade <asarwade@vmware.com>,
        Thomas Hellstrom <thellstrom@vmware.com>,
        LKML <linux-kernel@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        Masik Petr <Petr.Masik@nudz.cz>,
        Sasha Levin <alexander.levin@verizon.com>,
        Stable tree <stable@vger.kernel.org>
Date: Tue, 21 Nov 2017 19:58:13 +0000
In-Reply-To: <20170913151939.gf7n6rvvjtz47tz7@dhcp22.suse.cz>
References: <20170912090852.qshtrioffwexkslw@dhcp22.suse.cz>
         <B8A42FAB-9E16-4943-98F3-86FC8F195069@vmware.com>
         <20170913151939.gf7n6rvvjtz47tz7@dhcp22.suse.cz>
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On Wed, 2017-09-13 at 17:19 +0200, Michal Hocko wrote:
> On Wed 13-09-17 15:07:26, Jorgen S. Hansen wrote:
[...]
> > The patch below has been used to fix the above issue by other distros
> > - among them Redhat for the 3.10 kernel, so it should work for 3.16 as
> > well.
>=20
> Thanks for the confirmation. I do not see 4ef7ea9195ea ("VSOCK: sock_put
> wasn't safe to call in interrupt context") in 3.10 stable branch
> though.
>=20
> > In addition to the patch above, there are two other patches that
> > need to be applied on top for the fix to be correct:
> >=20
> > 8566b86ab9f0f45bc6f7dd422b21de9d0cf5415a "VSOCK: Fix lockdep issue."
> >=20
> > and
> >=20
> > 8ab18d71de8b07d2c4d6f984b718418c09ea45c5 "VSOCK: Detach QP check should=
 filter out non matching QPs."
>=20
> Good to know. I will send all three patches cherry-picked on top of the
> current 3.16 stable branch. Could you have a look please?

I've now queued these all up.

Ben.

--=20
Ben Hutchings
If you seem to know what you are doing, you'll be given more to do.


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