linux-kernel - Re: scheduling while atomic from vmci_transport_recv_stream

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Message-ID: <1511294293.2841.0.camel@decadent.org.uk>
Date:   Tue, 21 Nov 2017 19:58:13 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     Michal Hocko <mhocko@...nel.org>,
        "Jorgen S. Hansen" <jhansen@...are.com>
Cc:     Aditya Sarwade <asarwade@...are.com>,
        Thomas Hellstrom <thellstrom@...are.com>,
        LKML <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Masik Petr <Petr.Masik@...z.cz>,
        Sasha Levin <alexander.levin@...izon.com>,
        Stable tree <stable@...r.kernel.org>
Subject: Re: scheduling while atomic from vmci_transport_recv_stream_cb in
 3.16 kernels

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.
> 
> 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.
> 
> > In addition to the patch above, there are two other patches that
> > need to be applied on top for the fix to be correct:
> > 
> > 8566b86ab9f0f45bc6f7dd422b21de9d0cf5415a "VSOCK: Fix lockdep issue."
> > 
> > and
> > 
> > 8ab18d71de8b07d2c4d6f984b718418c09ea45c5 "VSOCK: Detach QP check should filter out non matching QPs."
> 
> 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.

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


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