linux-kernel - Re: tty crash in Linux 4.6

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Message-ID: <20180322140554.GA3273@kroah.com>
Date:   Thu, 22 Mar 2018 15:05:54 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Daniel Axtens <dja@...ens.net>
Cc:     Michael Neuling <mikey@...ling.org>,
        Mikulas Patocka <mpatocka@...hat.com>,
        Peter Hurley <peter@...leysoftware.com>,
        Jiri Slaby <jslaby@...e.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: tty crash in Linux 4.6

On Fri, Mar 23, 2018 at 12:48:06AM +1100, Daniel Axtens wrote:
> Hi,
> 
> >> This patch works, I've had no tty crashes since applying it.
> >>
> >> I've seen that you haven't sent this patch yet to Linux-4.7-rc and
> >> Linux-4.6-stable. Will you? Or did you create a different patch?
> >
> > We are hitting this now on powerpc.  This patch never seemed to make
> > it upstream (drivers/tty/tty_ldisc.c hasn't been touched in 1 year).
> 
> I seem to be hitting this too on a kernel that has the 4.6 changes
> backported to 4.4.
> 
> Has there been any further progress on getting this accepted?

Can you try applying 28b0f8a6962a ("tty: make n_tty_read() always abort
if hangup is in progress") to see if that helps out or not?

thanks,

greg k-h