Subject: current panic
To: None <current-users@netbsd.org>
From: Hoang Q. Tran <hoang@muine.org>
List: current-users
Date: 05/19/2001 20:38:05
Hi,

I just had a panic with kernel 1.5V of May 18. Not sure what's
causing the panic.

Hoang

# gdb
GNU gdb 4.17
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you
are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for
details.
This GDB was configured as "i386--netbsd".
(gdb) file /var/crash/netbsd.0
Reading symbols from /var/crash/netbsd.0...(no debugging symbols
found)...done.
(gdb) target kcore /var/crash/netbsd.0.core
panic: lockmgr: locking against myself
#0  0xc02bdbbc in db_last_command ()
(gdb) where
#0  0xc02bdbbc in db_last_command ()
#1  0x3570000 in ?? ()
#2  0xc0237ac3 in cpu_reboot ()
#3  0xc01110f5 in db_sync_cmd ()
#4  0xc0110cf4 in db_command ()
#5  0xc0110eba in db_command_loop ()
#6  0xc0113f76 in db_trap ()
#7  0xc0235678 in kdb_trap ()
#8  0xc023c434 in trap ()
#9  0xc0100cb9 in calltrap ()
#10 0xc0134724 in panic ()
#11 0xc0125f6e in lockmgr ()
#12 0xc01557e8 in genfs_lock ()
#13 0xc015355b in VOP_LOCK ()
#14 0xc0152d5a in vn_lock ()
#15 0xc014ce6a in vget ()
#16 0xc0148a24 in cache_lookup ()
#17 0xc01f435c in nfs_lookup ()
#18 0xc0152e5e in VOP_LOOKUP ()
#19 0xc014b8c4 in lookup ()
#20 0xc014b5d1 in namei ()
#21 0xc0152494 in vn_open ()
#22 0xc014f8b4 in sys_open ()
---Type <return> to continue, or q <return> to quit---
#23 0xc023c070 in syscall_plain ()
#24 0xc0100d6e in syscall1 ()
can not access 0xbfbfbc64, invalid translation (invalid PDE)
can not access 0xbfbfbc64, invalid translation (invalid PDE)
Cannot access memory at address 0xbfbfbc64.