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From: Mike Kravetz <mike.kravetz@oracle.com>
To: Daniel Axtens <dja@axtens.net>,
	Mikulas Patocka <mpatocka@redhat.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michael Neuling <mikey@neuling.org>,
	Peter Hurley <peter@hurleysoftware.com>,
	Jiri Slaby <jslaby@suse.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: tty crash in Linux 4.6
Date: Fri, 15 Nov 2019 11:21:08 -0800	[thread overview]
Message-ID: <d8ba132f-e174-2acc-e74c-4e9aed945c30@oracle.com> (raw)
In-Reply-To: <87k1td913u.fsf@linkitivity.dja.id.au>

On 4/11/18 9:09 AM, Daniel Axtens wrote:
> Mikulas Patocka <mpatocka@redhat.com> writes:
> 
>> On Thu, 22 Mar 2018, Greg Kroah-Hartman wrote:
>>
>>> 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?
> 
> Sorry for the delay in getting the test results; as with Mikulas,
> 28b0f8a6962a does not help.
> 
> Regards,
> Daniel
> 
>>>
>>> thanks,
>>>
>>> greg k-h
>>
>> It doesn't help. I get the same crash as before.
>>
>> Mikulas

Reviving a really old thread.

It looks like this patch never got merged.  Did it get resolved in
some other way?  I ask because we have a customer who seems to have
hit this issue.

-- 
Mike Kravetz

  reply	other threads:[~2019-11-15 19:22 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-16 20:12 tty crash in Linux 4.6 Mikulas Patocka
2016-05-16 23:36 ` Peter Hurley
2016-05-17 15:57   ` Peter Hurley
2016-05-17 18:09     ` Peter Hurley
2016-05-17 21:26       ` Mikulas Patocka
2016-07-07 22:57       ` Mikulas Patocka
2017-03-11  0:31         ` Michael Neuling
2018-03-22 13:48           ` Daniel Axtens
2018-03-22 14:05             ` Greg Kroah-Hartman
2018-03-27 12:18               ` Mikulas Patocka
2018-04-11 16:09                 ` Daniel Axtens
2019-11-15 19:21                   ` Mike Kravetz [this message]
2019-11-16  9:36                     ` Greg Kroah-Hartman
2019-12-03 15:17                       ` Mikulas Patocka
2019-12-03 19:14                         ` Greg Kroah-Hartman

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