Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1267109

Re: 4.3 serial driver crashes with console shortly after boot

Show all headers | View raw

On 11/10/2015 06:15 PM, Peter Hurley wrote:
> On 11/10/2015 05:43 PM, Andi Kleen wrote:
>> On Tue, Nov 10, 2015 at 11:39:57PM +0100, Andi Kleen wrote:
>>>> I've just tried to reproduce this without success on my current
>>>> tree which has some additional patches I just posted this am. They weren't
>>>> intended to fix crashes but they directly impact the area of concern. Could
>>>> you try these three?
>>>>
>>>> [PATCH v2 2/4] n_tty: Ignore all read data when closing
>>>> [PATCH v2 3/4] tty: Abstract and encapsulate tty->closing behavior
>>>> [PATCH v2 4/4] tty: Remove drivers' extra tty_ldisc_flush()
>>>>
>>> Applying the three patches fixes the crash. 
>>> I haven't tried to figure out which one did the trick.
>>
>> Actually I was wrong sorry. It still crashes, but now it doesn't
>> hang the system anymore.
> 
> Argghh.
> Can you run the patch below and send me full dmesg (privately if you prefer)?

Nevermind. I see how it's happening now; it's being initiated by hangup,
not close. FWIW, it's been like that nearly forever; your user-space/tool is
triggering this because ECHO is on.

Regards,
Peter Hurley

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

4.3 serial driver crashes with console shortly after boot Andi Kleen <andi@firstfloor.org> - 2015-11-10 01:30 +0100
  Re: 4.3 serial driver crashes with console shortly after boot Peter Hurley <peter@hurleysoftware.com> - 2015-11-10 03:00 +0100
    Re: 4.3 serial driver crashes with console shortly after boot Andi Kleen <andi@firstfloor.org> - 2015-11-10 23:50 +0100
      Re: 4.3 serial driver crashes with console shortly after boot Andi Kleen <andi@firstfloor.org> - 2015-11-10 23:50 +0100
        Re: 4.3 serial driver crashes with console shortly after boot Peter Hurley <peter@hurleysoftware.com> - 2015-11-11 00:20 +0100
          Re: 4.3 serial driver crashes with console shortly after boot Peter Hurley <peter@hurleysoftware.com> - 2015-11-11 12:20 +0100
            Re: 4.3 serial driver crashes with console shortly after boot Andi Kleen <andi@firstfloor.org> - 2015-11-11 18:00 +0100

csiph-web