Date: Wed, 19 Apr 2000 08:33:29 +0100 From: Brian Somers <brian@Awfulhak.org> To: William Denton <buff@pobox.com> Cc: stable@FreeBSD.ORG Subject: Re: Serial port problems with 4.0 Message-ID: <200004190733.IAA00473@hak.lan.Awfulhak.org> In-Reply-To: Message from William Denton <buff@pobox.com> of "Tue, 18 Apr 2000 19:50:55 EDT." <Pine.BSF.4.21.0004181927290.14156-100000@odin.egate.net>
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I think there's something peculiar happening here - casting a quick
eye at datalink.h, I've got the DATALINK_CARRIER and DATALINK_LOGIN
states before the DATALINK_READY state. DATALINK_READY is what you
get when you ``term'', but it's possible that it's getting jammed
waiting for carrier first :-(
$ ppp
Working in interactive mode
Using interface: tun0
ppp ON hak> set device "!telnet localhost"
ppp ON hak> set log local phase
ppp ON hak> term
Phase: bundle: Establish
Phase: deflink: closed -> opening
Phase: deflink: Connected!
deflink: Entering terminal mode on !telnet localhost
Type `~?' for help
Phase: deflink: opening -> carrier
Phase: deflink: carrier -> ready
Trying ::1...
Connected to localhost.
Escape character is '^]'.
FreeBSD/i386 (hak.lan.Awfulhak.org) (ttyp2)
login:
I suspect on a real tty, this will have problems after ``opening ->
carrier'' ! Does ``set cd off'' make any difference ? If it does,
that's a bug.
> On 13 April 2000, Marcin Cieslak wrote:
>
> : Most ISPs today don't use a traditinal login "terminal" login scheme,
> : they instead allow ppp to put LCP packets on the wire and verify
> : authentication using PAP or CHAP instead.
> :
> : I usually dial up manually, using "term" command and "ATDT" Hayes
> : string and see if login prompt is really "login:" or perhaps
> : "username:" or something else.
>
> Using terminal mode with 4.0 on the box, I can connect to the ISP, it says
> CONNECT 115200, then nothing. When 3.4 was on the box, and with the
> machine I'm on now (still 3.4 until I get this PPP thing figured out), I
> get the old-fashioned login: prompt. So it seems there's something about
> 4.0-RELEASE and ppp on this machine that's causing PPP to freeze up early
> on so that the login prompt never arrives. The racks do give up the
> prompt.
>
> I checked out the FAQ, and took its advice on recompiling ppp with a
> couple of added options so I could run the debugger on it. Doing a stack
> trace when it was sitting waiting, I got this:
>
> #0 0x281c1c50 in select () from /usr/lib/libc.so.4
> #1 0x8068e71 in DoLoop (bundle=0x808a7e0) at main.c:534
> #2 0x8068d83 in main (argc=1, argv=0xbfbffbdc) at main.c:492
> #3 0x804af59 in _start ()
>
> What's going on in usr.sbin/ppp/main.c is beyond me, though.
>
> Bill
> --
> William Denton : Toronto, Canada : http://www.miskatonic.org/ : Caveat lector.
--
Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org>
<http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !
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