Kernel Panic: bad isr 0

TC Lewis tfox at
Sat Nov 22 22:30:38 PST 2003

On Sat, 22 Nov 2003 12:34:13 -0800, TC Lewis 
<tfox at xxxxxxxxxxxxxxxxxxxxxxxx> wrote:

panic: bad isr 0
Stopped at      Debugger+0x34: movb     $0,in_Debugger.339
Debugger trace reports: (as best as I can see by my craning my neck 
around and reading from the monitor behind me)

Debugger(c03c4d58,c0166ffb,c02b384d,c02eee78,c02e6a6c) at Debugger+0x34 
dumpmag(73252228,a2922,0,0,0) at dumpmag+0x1b9

Thanks in advance ;)

	Kernconf as follows:

machine         i386
cpu             I686_CPU
ident           DRAKE
maxusers        0
options         ROOTDEVNAME=\"ufs:ad0s1a\"

makeoptions     DEBUG=-g                #Build kernel with gdb(1) debug 

options         MATH_EMULATE            #Support for x87 emulation
options         INET                    #InterNETworking
options         INET6                   #IPv6 communications protocols
options         FFS                     #Berkeley Fast Filesystem
options         FFS_ROOT                #FFS usable as root device [keep 
options         SOFTUPDATES             #Enable FFS soft updates support
options         UFS_DIRHASH             #Improve performance on big 
options         MFS                     #Memory Filesystem
options         MD_ROOT                 #MD is a potential root device
options         NFS                     #Network Filesystem
options         NFS_ROOT                #NFS usable as root device, NFS 
options         MSDOSFS                 #MSDOS Filesystem
options         CD9660                  #ISO 9660 Filesystem
options         CD9660_ROOT             #CD-ROM usable as root, CD9660 
options         PROCFS                  #Process filesystem
options         COMPAT_43               #Compatible with BSD 4.3 [KEEP 
options         UCONSOLE                #Allow users to grab the console
options         USERCONFIG              #boot -c editor
options         VISUAL_USERCONFIG       #visual boot -c editor
options         KTRACE                  #ktrace(1) support
options         SYSVSHM                 #SYSV-style shared memory
options         SYSVMSG                 #SYSV-style message queues
options         SYSVSEM                 #SYSV-style semaphores
options         P1003_1B                #Posix P1003_1B real-time 
options         ICMP_BANDLIM            #Rate limit bad replies
options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev

# Debugging for Development
options         DDB
options         INVARIANTS
options         INVARIANT_SUPPORT

device          isa
device          eisa
device          pci
# Floppy drives
device          fdc0    at isa? port IO_FD1 irq 6 drq 2
device          fd0     at fdc0 drive 0
device          fd1     at fdc0 drive 1
# ATA and ATAPI devices
device          ata0    at isa? port IO_WD1 irq 14
device          ata1    at isa? port IO_WD2 irq 15
device          ata
device          atadisk                 # ATA disk drives
device          atapicd                 # ATAPI CDROM drives
options         ATA_STATIC_ID           #Static device numbering
# atkbdc0 controls both the keyboard and the PS/2 mouse
device          atkbdc0 at isa? port IO_KBD
device          atkbd0  at atkbdc? irq 1 flags 0x1
device          psm0    at atkbdc? irq 12
device          vga0    at isa?

# syscons is the default console driver, resembling an SCO console
device          sc0     at isa? flags 0x100
device          agp             # support several AGP chipsets

# Floating point support - do not disable.
device          npx0    at nexus? port IO_NPX irq 13
# Power management support (see LINT for more options)
device          apm0    at nexus? disable flags 0x20 # Advanced Power 

# Serial (COM) ports
device          sio0    at isa? port IO_COM1 flags 0x10 irq 4
device          sio1    at isa? port IO_COM2 irq 3
device          sio2    at isa? disable port IO_COM3 irq 5
device          sio3    at isa? disable port IO_COM4 irq 9
# Parallel port
device          ppc0    at isa? irq 7
device          ppbus           # Parallel port bus (required)
device          lpt             # Printer
device          plip            # TCP/IP over parallel
device          ppi             # Parallel port interface device
options         IPFIREWALL              #firewall
options         IPFIREWALL_VERBOSE      #enable logging to syslogd(8)
options         IPFIREWALL_VERBOSE_LIMIT=100    #limit verbosity
options         IPDIVERT                #divert sockets
options         IPSTEALTH               #support for stealth forwarding
options         TCP_DROP_SYNFIN         #drop TCP packets with SYN+FIN
options         DUMMYNET
options         DEVICE_POLLING
options         HZ=1000
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these 
device          miibus          # MII bus support
device          sis             # Silicon Integrated Systems SiS 900/SiS 
device          dc              # DEC/Intel 21143 and various workalikes

# Pseudo devices - the number indicates how many units to allocate.
pseudo-device   loop            # Network loopback
pseudo-device   ether           # Ethernet support
pseudo-device   ppp     1       # Kernel PPP
pseudo-device   tun             # Packet tunnel.
pseudo-device   pty             # Pseudo-ttys (telnet etc)
pseudo-device   md              # Memory "disks"
pseudo-device   gif             # IPv6 and IPv4 tunneling
pseudo-device   faith   1       # IPv6-to-IPv4 relaying (translation)
# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device   bpf             #Berkeley packet filter
A variant of this had the same problem without the ROOTDEVNAME at the top, 
and... I think some usb devices.

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