Subject: Re: Fwd: [Bug 3592] New: pppd "IPCP: timeout sending
	Config-Requests"
From: Paul Fulghum <paulkf@microgate.com>
To: Russell King <rmk+lkml@arm.linux.org.uk>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
       "Martin J. Bligh" <mbligh@aracnet.com>,
       Linus Torvalds <torvalds@osdl.org>, Alan Cox <alan@redhat.com>
In-Reply-To: <20041019131240.A20243@flint.arm.linux.org.uk>
References: <20041019131240.A20243@flint.arm.linux.org.uk>
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Message-Id: <1098195468.8467.7.camel@deimos.microgate.com>
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Date: Tue, 19 Oct 2004 09:17:48 -0500
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On Tue, 2004-10-19 at 07:12, Russell King wrote:
> Software Environment: ppp-2.4.1 ( tested with ppp-2.4.2 - the same error )
> Problem Description: With 2.6.9-rc4 I'm getting the error when dialing to my
> provider. With older kernel versions everything works fine. After remote modem
> cosed the connection (rcvd [CHAP Success id=0x29 ""]) pppd keeps sending
> Config-Requests

This looks like the tty locking changes from Alan Cox.

The tty_io.c do_tty_hangup() no longer switches
the line discipline back to N_TTY, so ppp_async.c
is not aware of the hangup (ldisc->close not called).

The following is a snippet from tty_io.c:

	/* Defer ldisc switch */
	/* tty_deferred_ldisc_switch(N_TTY);
	
	  This should get done automatically when the port closes and
	  tty_release is called */

I'll setup a test connection and verify this.

-- 
Paul Fulghum
paulkf@microgate.com

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