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Groups > linux.kernel > #1618429

Re: tty crash in tty_ldisc_receive_buf()

From Benjamin Herrenschmidt <benh@kernel.crashing.org>
Newsgroups linux.kernel
Subject Re: tty crash in tty_ldisc_receive_buf()
Date 2017-04-07 03:10 +0200
Message-ID <ttqzv-aP-3@gated-at.bofh.it> (permalink)
References <tt9Il-5mv-1@gated-at.bofh.it> <ttfE5-B0-7@gated-at.bofh.it>
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On Thu, 2017-04-06 at 08:28 -0500, Rob Herring wrote:
> 
> Can you try this one [1].
> 
> Rob
> 
> [1] https://lkml.org/lkml/2017/3/23/569

Unless I missed something, that patch doesn't change barriers or
locking, so I don't see how it could fix anything ...

Mind you we haven't quite figured out exactly what's happening here.

Cheers,
Ben.

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Thread

tty crash in tty_ldisc_receive_buf() Michael Neuling <mikey@neuling.org> - 2017-04-06 09:10 +0200
  Re: tty crash in tty_ldisc_receive_buf() Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-04-06 09:20 +0200
  Re: tty crash in tty_ldisc_receive_buf() Rob Herring <robh@kernel.org> - 2017-04-06 15:30 +0200
    Re: tty crash in tty_ldisc_receive_buf() Michael Neuling <mikey@neuling.org> - 2017-04-07 02:50 +0200
    Re: tty crash in tty_ldisc_receive_buf() Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-04-07 03:10 +0200
      Re: tty crash in tty_ldisc_receive_buf() Rob Herring <robh@kernel.org> - 2017-04-07 16:10 +0200
        Re: tty crash in tty_ldisc_receive_buf() Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-04-08 01:30 +0200
  Re: tty crash in tty_ldisc_receive_buf() Wang YanQing <udknight@gmail.com> - 2017-04-07 03:30 +0200
    Re: tty crash in tty_ldisc_receive_buf() Michael Neuling <mikey@neuling.org> - 2017-04-07 04:10 +0200

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