Re: Serial driver hangs

From: Alan Cox (alan_at_lxorguk.ukuu.org.uk)
Date: 09/30/04

  • Next message: Frank van Maarseveen: "Re: ip_nat_helper / ip_conntrack_core issues with recent 2.6 kernels" 
    To: Paul Fulghum <paulkf@microgate.com>
Date:	Thu, 30 Sep 2004 19:34:34 +0100

    On Iau, 2004-09-30 at 20:09, Paul Fulghum wrote:
    > The gaping hole in the flip buffer scheme is
    > flush_to_ldisc() can be called from hard IRQ
    > context while ldisc->receive_buf() is running.

    This is strictly forbidden and always has been. I've no
    plan to touch that restriction merely to re-educate
    any offender

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