Date: Mon, 02 Dec 1996 05:05:53 -0800 From: "Jordan K. Hubbard" <jkh@time.cdrom.com> To: hackers@freebsd.org Subject: Bizarro bug in 2.1.6 that's had me stumped for ages... Message-ID: <336.849531953@time.cdrom.com>
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I kept hoping that this was just me somehow, but after looking and
looking for some sort of misconfiguration and still banging into this
one, I thought I'd finally ask.
I have a gateway machine with an SMC8216 ethernet card in it and an
ISDN TA hanging off a standard 16550 serial port. It works just
peachy, 99.9% of the time, except after I've really exercised it in
some way (seems to happen most frequently after a make world though
this could just be the sheerest coincidence). The symptom is that
it's suddenly unable to talk to its SLIP interface directly, e.g.:
root@whisker-> ifconfig -a
..
sl0: flags=9011<UP,POINTOPOINT,LINK0,MULTICAST> mtu 552
inet 204.216.27.194 --> 204.216.27.193 netmask 0xfffffff0
root@whisker-> ping 204.216.27.193
PING 204.216.27.193 (204.216.27.193): 56 data bytes
<zilch, nada, zip>
The weirder thing is that it still functions just great as a gateway.
On another machine, which it talks to (just fine) through its ethernet
interface, I can say:
jkh@time-> ping 204.216.27.193
PING 204.216.27.193 (204.216.27.193): 56 data bytes
64 bytes from 204.216.27.193: icmp_seq=0 ttl=254 time=113.731 ms
No problem. This is going, after one hop, out the very same SLIP
interface that whisker refused to talk to in the previous example.
Needless to say, I'm somewhat mystified. A reboot fixes it just fine
and things work great for awhile until the next "hang."
Any clues?
Jordan
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