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- From: perkins@cps.msu.edu (Stephen Perkins)
- Newsgroups: comp.protocols.ppp
- Subject: Sparc panic
- Message-ID: <1992Sep6.160053.15053@msuinfo.cl.msu.edu>
- Date: 6 Sep 92 16:00:53 GMT
- Sender: news@msuinfo.cl.msu.edu
- Organization: Dept. of Computer Science, Michigan State University
- Lines: 39
- Originator: perkins@indian.cps.msu.edu
-
- I have installed PPP (I tried both ppp-sunos4.1.pl6.tar.Z and
- pppd-1.01beta.tar.Z) on a Sparc1 running SunOS Release 4.1.1. The
- installation seems to be successful and my NeXT at home seems to
- communicate nicely. However, I have encountered a rather nasty
- problem when I try a binary FTP between the Sparc and the NeXT. I can
- transfer files in Ascii mode and even a few in binary mode, but most
- binary files cause the Sparc to crash. The /usr/adm/messages file
- gives a message like:
-
- Sep 2 20:22:29 sol vmunix: assertion failed: dbp->db_ref > 0, file: ../../os/str_buf.c, line: 526
-
- The OS then panics and reboots.
-
- The problem does seem to be with binary files because I was able to
- transfer gcc (9meg uuencoded) with no problems. It also only occurs
- when the transfer is from the sparc to the NeXT. Binary transfers
- from the NeXT to the Sparc work fine. To clarify, it doesn't matter
- which end I run FTP from. If the file is being sent from the Sparc to
- the NeXT (FTP on Sparc using put) or received from the Sparc by the
- NeXT (FTP on NeXT using get), the Sparc crashes.
-
- I am running the link over a NetBlazer using telnet to the host on
- which I installed PPP (Unfortunately, not allowed to use the
- NetBlazers PPP). I don't think that telnet is the problem, but
- somebody suggested that I make sure characters 250-255 were escaped.
- So I went as far as modifying the source to force those characters to
- be escaped. Didn't help.
-
- I'm not lucky enough to have the source to str_buf (object located in
- /usr/kvm/sys/sun4c/OBJ/str_buf.o). Is there anybody who has an idea
- of what the problem may be?? Help would be sincerely appreciated.
-
- - Steve
-
- --
- ====================================================================
- Stephen Perkins |
- Department of Computer Science | perkins@cps.msu.edu
- Michigan State University |
-