Date: Mon, 14 Dec 1998 06:55:00 +0100 (CET) From: List User <listuser@netspace.net.au> To: freebsd-questions@FreeBSD.org Message-ID: <199812140555.GAA08072@doorway.home.lan>
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From: Brian Somers <brian@Awfulhak.org>
Subject: Re: PPP Serial I/O hangs (unable to receive)
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To: John Matthews <matthews>
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In-Reply-To: Your message of "Sun, 13 Dec 1998 16:43:12 MST."
<199812132343.QAA01800@nethawk.qtscorp.com>
Cc: questions, brian
Date: Mon, 14 Dec 1998 01:36:10 GMT
> I am noticing something strange and I wondering if anyone can make any
> suggestions to help furhter isolate a problem I'm seeing with the Serial I/O
> hanging within PPP. What I'm noticing is that if I am loading the ppp
> interface with a bidirectional traffic load, the serial port will lock
> up almost always within 5 to 10 minutes. It looks like it's on the receive
> side only. PPP will still transmit packets out and I've prooved to myself
> that they are getting out. This also happens with pppd so my guess is that
> it's in the kernel sio driver somewhere. This seems to happen with FreeBSD
> 2.2.6 as well as the recent 3.0 release. I'm using an Courier-I ISDN modem
> with StarTek 16650 UARTS clocked at 230,400 bps but the problem also ocurrs
> with some NS16550AFN UARTS that I have. I know it's not the hardware because
> I can run the DOS based IPROUTE software beautifully on the same hardware
> without any problems. Dos anyone have any suggestions?
I hate to ``pass the buck'', but it sounds suspiciously like there
may be a problem with the remote ppp (maybe a routing thing?).
As you point out, the only thing that ppp & pppd share is the sio
driver, and I'd be surprised if that came up with the ability to send
stuff but not receive... (yeah, I know, famous last words).
> John Matthews
--
Brian <brian@Awfulhak.org> <brian@FreeBSD.org> <brian@OpenBSD.org>
<http://www.Awfulhak.org>;
Don't _EVER_ lose your sense of humour !
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