Date: Fri, 7 Aug 1998 10:29:47 +0200 (METDST) From: hm@hcs.de (Hellmuth Michaelis) To: is@jocelyn.rhein.de (Ignatios Souvatzis) Cc: freebsd-isdn@FreeBSD.ORG Subject: Re: isdn4netbsd-amiga, 4th report Message-ID: <m0z4huF-0000fAC@hcswork.hcs.de> In-Reply-To: <19980807000820.B1249@jocelyn.rhein.de> from Ignatios Souvatzis at "Aug 7, 98 00:08:20 am"
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>From the keyboard of Ignatios Souvatzis:
> I did HDLC and sync-PPP tests with myself...
^^^^^^
> a) some state machine problem (or some data gets lost), closing connections.
> Ive seen this with both ipr and isppp interfaces. See at end for logfile.
As i said in an earlier mail, this are the same problems arising when using
isdntest to call yourself and are caused by the inner layers of i4b not
being decoupled by message queues.
This will not go away until someone converts the design from synchronous
function calls to asynchronous message queues (which is major undertaking).
> b) my impression is, that somewhere there is an infinite FIFO.
The FIFO is finite. For the ipr tx interface it is 50 mbufs fast queue plus
50 mbufs slow queue plus 50 mbufs send queue plus 50 mbufs hscx tx queue.
Which is quite large.
> c) I'm a bit confused about how sync ppp handles interfaces up and down and
> dialing. (looked like dialing immediately, and downing the interfaces when
> hanging up the line due to inactivity).
> I guess I need to read some documentation more closely?
No idea since i still do not use PPP (which will change RSN).
> d) the command window for hanging up a line doesn't react to any keystroke
> I could identify. Just leaves the cursor after the last line it offers.
Curses problem in NetBSD ??? This does not happen in FreeBSD. For shure.
> e) I had something like this at the last test, when I tried to hang up the sppp
> via isdnd's command window:
>
> Aug 6 23:37:10 jocelyn isdnd[1134]: ERR sendm_disconnect_req: ioctl I4B_DISCONNECT_REQ failed: Invalid argument
A bug. ;-)
hellmuth
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