Running tip crashes my DEC3000/400 system

From: Johan Nyberg <nyberg_at_unix.tsl.uu.se>
Date: Sat, 28 Jun 1997 03:02:09 +0200

Hi,

I have a problem running tip on my DEC3000/400 system. We have just
update to DU4.0A and I need to reconfigure my modem connected to
/dev/tty00 after this upgrade. Here is what 'uname -a' gives:

        # uname -a
        OSF1 axns01.tsl.uu.se V4.0 464 alpha
        #

There were no /dev/tty00 and /dev/tty01 files so I hade to make them:

        # cd /dev
        # ./MAKEDEV ace0
        MAKEDEV: special file(s) for ace0:
        tty00 tty01
        #

Then I added the following line to /etc/remote:

        b38400:dv=/dev/tty00:br#38400:pa=none

After that I tried tip

        # tip b38400

Then the system goes down with the following message (from the
/var/adm/messages file):

 vmunix: trap: invalid memory read access from kernel mode
 vmunix:
 vmunix: faulting virtual address: 0x0000000000000040
 vmunix: pc of faulting instruction: 0xfffffc00005bd130
 vmunix: ra contents at time of fault: 0xfffffc00005bd100
 vmunix: sp contents at time of fault: 0xffffffff8b5536a0
 vmunix:
 vmunix: panic (cpu 0): kernel memory fault
 vmunix: syncing disks... done
 vmunix: DUMP.prom: dev SCSI 0 6 0 0 300 0 FLAMG-IO, block 131072
 vmunix: DUMP.prom: dev SCSI 0 6 0 0 300 0 FLAMG-IO, block 131072

I can also generate the crash when I run tip as a normal user (not root)

Can someone help me, please?

Johan

-- 
Johan Nyberg, The Svedberg Laboratory, Uppsala University, Uppsala, Sweden
nyberg_at_unix.tsl.uu.se,  http://www3.tsl.uu.se/~nyberg.  Fax: +46-18-4713833 
Tel: +46-18-4713047 (office), +46-18-324314 (home), +46-708-324314 (mobile) 
Received on Sat Jun 28 1997 - 03:14:16 NZST

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