Subject: Help on crash dump
To: None <current-users@NetBSD.ORG>
From: Tom Pavel <pavel@MAILBOX.SLAC.Stanford.EDU>
List: current-users
Date: 09/14/1995 21:00:52
I'm probably SOL on this one,  but I thought I'd ask before deleting my 
crash dump.  I have a -current (Sep ) i386 kernel, compiled without DDB and 
without -g symbols.  [I thought I could just compile it again with 
DEBUG=-g, but that didn't seem to satisfy gdb...]  This kernel crashed 
while I was sending something to lpt0.  My question is: is there any useful 
info I can glean from what I have?

messages (from the crash dump):
--------------------------------------------------------
lpt0: stat=0x1 not zero
lpt0: stat=0x1 not zero
lpt0: stat=0x1 not zero
fatal page fault in supervisor mode
trap type 6 code f7bf0000 eip f816ef44 cs f8650008 eflags 10286 cr2 
f8ccd000 cpl
 e0000080
panic: trap
syncing disks... fatal page fault in supervisor mode
trap type 6 code f8c50000 eip f81242da cs f8120008 eflags 10286 cr2 18 cpl 0
panic: trap
--------------------------------------------------------

Stack trace from gdb -k:
--------------------------------------------------------
GDB 4.11 (i386-netbsd), Copyright 1993 Free Software Foundation, Inc...
(no debugging symbols found)...
panic: trap
#0  0xf8112c69 in mi_switch ()
(kgdb) where
#0  0xf8112c69 in mi_switch ()
#1  0xf81126c5 in tsleep ()
#2  0xf815d03c in scheduler ()
#3  0xf8109475 in main ()
--------------------------------------------------------

Thanks,

Tom Pavel

Stanford Linear Accelerator Center
pavel@slac.stanford.edu                 http://www.slac.stanford.edu/~pavel/