trap: invalid memory read access from kernel mode

From: Darrell King <info_at_apion-ti.com>
Date: Wed, 10 Jun 1998 14:02:39 +0100

hello managers

on an alpha 1200 running Du4.0b crashed today

is ther any way of telling why or what crashed it

from var/adm/messages

Jun 10 10:19:32 jasmine vmunix:
Jun 10 10:19:32 jasmine vmunix: trap: invalid memory read access from kernel
mode
Jun 10 10:19:32 jasmine vmunix:
Jun 10 10:19:32 jasmine vmunix: faulting virtual address:
0x000000000024f980
Jun 10 10:19:32 jasmine vmunix: pc of faulting instruction:
0xfffffc000029deb0
Jun 10 10:19:32 jasmine vmunix: ra contents at time of fault:
0xfffffc000029db58
Jun 10 10:19:32 jasmine vmunix: sp contents at time of fault:
0xffffffff9fc5f4f0
Jun 10 10:19:32 jasmine vmunix:
Jun 10 10:19:32 jasmine vmunix: panic (cpu 1): kernel memory fault
Jun 10 10:19:32 jasmine vmunix: device string for dump = SCSI 1 4 0 0 0 0 0.
Jun 10 10:19:32 jasmine vmunix: DUMP.prom: dev SCSI 1 4 0 0 0 0 0, block
262862
Jun 10 10:19:32 jasmine vmunix: device string for dump = SCSI 1 4 0 0 0 0 0.
Jun 10 10:19:32 jasmine vmunix: DUMP.prom: dev SCSI 1 4 0 0 0 0 0, block
262862
Jun 10 10:19:33 jasmine vmunix: Alpha boot: available memory from 0x1296000
to 0x2fffc000

also thge net card in this machine is a 10/100 autosensing card
what is autonegotation
in the binary.errlog file it says
 tu0: auto negotiation capable device: National DP83840
tu0 at pci0 slot 3
tu0: DEC Fast Ethernet Interface, hardware address: 00-00-F8-06-C7-23
tu0: auto negotiation off: selecting 10BaseT (UTP) port: half duplex

should it not be full duplex
it is plugged into a decrepeater

thanks
darrrell king
info_at_apion-ti.com
Received on Wed Jun 10 1998 - 15:05:52 NZST

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