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From: karl.kleinpaste@osc.edu
Newsgroups: comp.protocols.tcp-ip
Subject: Re: SLIP problems under SunOS 4.1.1
Message-ID: <1991Apr12.140605.29819@oar.net>
Date: 12 Apr 91 15:04:59 GMT
References: <1991Apr12.060432.1266@solar.card.inpu.oz.au>
Sender: news@oar.net
Organization: Viento Gigabit Testbed, Ohio Supercomputer Center
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Nntp-Posting-Host: ashley.osc.edu

brett@solar.card.inpu.oz.au writes:
   Lately we have been playing with the "Beta SLIP for SunOS 4.0" written by
   Rayan Zachariassen. We have been using it on Sun SPARCstation IPC's
   running SunOS 4.1.1 (This may well be the problem).

   Occasionally these machines crash with a "panic: mget" or even more rarely
   a "panic: mfree" message.

I am using Rayan's code on a SunOS 4.1.1 Sun4/110.  It works fine
after you install Sun PatchID 100149-02, except for an occasional
assertion panic of the following form when sliplogin goes down (in my
case, when the modem line drops; I'm using it for dialup SLIP):

| assertion failed: vp->v_stream == stp, file: ../../os/str_io.c, line: 609
| panic: assertion failed

I've written a note about the problem to sunbugs@sun.com, but since it
involves use of a non-standard driver, I doubt it'll get much
attention.  Before installing 100149-02, I consistently got "panic:
mclput" whenever substantial amounts of data would begin to transfer.

Note that there exist both -01 and -02 versions of this fix; install
-02 to be maximally up-to-date.  The README for -02 notes that the -01
version didn't deal in IP options properly.

100149-02.tar.Z can be ftp'd from saqqara.cis.ohio-state.edu:pub/slipware.

--karl