On Wed, Mar 22, 2000 at 09:15:27PM -0800, Matthew Dillon wrote:
> :#5 0xc01997c8 in arpintr () at ../../netinet/if_ether.c:447
>
> Very, very weird. Can you disassemble the 'arpintr' function from your
> kernel binary?
>
> gdb -k /kernel (or kernel.debug if you have it)
> disassemble arpintr
no problem (although much of this appears well over my head).
thanx for having a look.
> I can't pinpoint the fault point since my kernel is compiled up
> differently, but I suspect it's at the line I've indicated below.
>
> Unfortunately, it makes no sense whatsoever because %ebx would have to
> be NULL and that case already checked. I suspect the actual fault
> address is somewhere else if you do the dissassembly it should help.
just to clarify, i'm running 4.0-RELEASE, with a cvsup 4.x-stable-supfile
as at approx Mar 21 02:00
i've attached my kernel config file as well.
FreeBSD snuffy.nag.ca 4.0-STABLE FreeBSD 4.0-STABLE #2: Tue Mar 21 03:48:14 EST 2000
[EMAIL PROTECTED]:/usr/src/sys/compile/NAG-ORANGE i386
also, as at 23:00 last night (currently 05:30) i ifconfig'd the rl0 to 10mbps
and rebooted, and i haven't had a reboot yet.
mind you, it hasn't been rebooting with any regular frequency, nor do the
reboots appear to be related to system load. (ie, i had some heavy database
processing happening and a "make world" at the same time, without a reboot, then
got a reboot later during an idle period).
from kernel.debug:
(kgdb) disassemble arpintr
Dump of assembler code for function arpintr:
0xc019972c <arpintr>: pushl %ebp
0xc019972d <arpintr+1>: movl %esp,%ebp
0xc019972f <arpintr+3>: pushl %esi
0xc0199730 <arpintr+4>: pushl %ebx
0xc0199731 <arpintr+5>: cmpl $0x0,0xc0270084
0xc0199738 <arpintr+12>: je 0xc019986c <arpintr+320>
0xc019973e <arpintr+18>: call 0xc0232224 <splimp>
0xc0199743 <arpintr+23>: movl %eax,%edx
0xc0199745 <arpintr+25>: movl 0xc0270084,%ebx
0xc019974b <arpintr+31>: testl %ebx,%ebx
0xc019974d <arpintr+33>: je 0xc0199775 <arpintr+73>
0xc019974f <arpintr+35>: movl 0x4(%ebx),%eax
0xc0199752 <arpintr+38>: movl %eax,0xc0270084
0xc0199757 <arpintr+43>: testl %eax,%eax
0xc0199759 <arpintr+45>: jne 0xc0199768 <arpintr+60>
0xc019975b <arpintr+47>: movl $0x0,0xc0270088
0xc0199765 <arpintr+57>: leal 0x0(%esi),%esi
0xc0199768 <arpintr+60>: movl $0x0,0x4(%ebx)
0xc019976f <arpintr+67>: decl 0xc027008c
0xc0199775 <arpintr+73>: pushl %edx
0xc0199776 <arpintr+74>: call 0xc02320f4 <splx>
0xc019977b <arpintr+79>: addl $0x4,%esp
0xc019977e <arpintr+82>: testl %ebx,%ebx
0xc0199780 <arpintr+84>: je 0xc0199788 <arpintr+92>
0xc0199782 <arpintr+86>: testb $0x2,0x12(%ebx)
0xc0199786 <arpintr+90>: jne 0xc0199794 <arpintr+104>
0xc0199788 <arpintr+92>: pushl $0xc024bace
0xc019978d <arpintr+97>: call 0xc0154968 <panic>
0xc0199792 <arpintr+102>: movl %esi,%esi
0xc0199794 <arpintr+104>: cmpl $0x7,0xc(%ebx)
0xc0199798 <arpintr+108>: ja 0xc01997c8 <arpintr+156>
0xc019979a <arpintr+110>: pushl $0x8
0xc019979c <arpintr+112>: pushl %ebx
0xc019979d <arpintr+113>: call 0xc016e4b8 <m_pullup>
0xc01997a2 <arpintr+118>: addl $0x8,%esp
0xc01997a5 <arpintr+121>: testl %eax,%eax
0xc01997a7 <arpintr+123>: sete %al
0xc01997aa <arpintr+126>: movzbl %al,%ebx
0xc01997ad <arpintr+129>: testl %ebx,%ebx
0xc01997af <arpintr+131>: je 0xc01997c8 <arpintr+156>
0xc01997b1 <arpintr+133>: pushl $0xc024bae0
0xc01997b6 <arpintr+138>: pushl $0x3
0xc01997b8 <arpintr+140>: call 0xc015f524 <log>
0xc01997bd <arpintr+145>: addl $0x8,%esp
0xc01997c0 <arpintr+148>: jmp 0xc0199731 <arpintr+5>
0xc01997c5 <arpintr+153>: leal 0x0(%esi),%esi
0xc01997c8 <arpintr+156>: movl 0x8(%ebx),%ecx
0xc01997cb <arpintr+159>: movzwl (%ecx),%eax
0xc01997ce <arpintr+162>: xchgb %ah,%al
0xc01997d0 <arpintr+164>: cmpw $0x1,%ax
0xc01997d4 <arpintr+168>: je 0xc0199804 <arpintr+216>
0xc01997d6 <arpintr+170>: movzwl (%ecx),%eax
0xc01997d9 <arpintr+173>: xchgb %ah,%al
0xc01997db <arpintr+175>: cmpw $0x6,%ax
0xc01997df <arpintr+179>: je 0xc0199804 <arpintr+216>
0xc01997e1 <arpintr+181>: pushl $0xc024ba8e
0xc01997e6 <arpintr+186>: pushl %ecx
0xc01997e7 <arpintr+187>: pushl $0xc024bb20
0xc01997ec <arpintr+192>: pushl $0x3
0xc01997ee <arpintr+194>: call 0xc015f524 <log>
0xc01997f3 <arpintr+199>: pushl %ebx
0xc01997f4 <arpintr+200>: call 0xc016d99c <m_freem>
0xc01997f9 <arpintr+205>: addl $0x14,%esp
0xc01997fc <arpintr+208>: jmp 0xc0199731 <arpintr+5>
0xc0199801 <arpintr+213>: leal 0x0(%esi),%esi
0xc0199804 <arpintr+216>: movl %ebx,%eax
0xc0199806 <arpintr+218>: xorl %esi,%esi
0xc0199808 <arpintr+220>: testl %ebx,%ebx
0xc019980a <arpintr+222>: je 0xc0199815 <arpintr+233>
0xc019980c <arpintr+224>: addl 0xc(%eax),%esi
0xc019980f <arpintr+227>: movl (%eax),%eax
0xc0199811 <arpintr+229>: testl %eax,%eax
0xc0199813 <arpintr+231>: jne 0xc019980c <arpintr+224>
0xc0199815 <arpintr+233>: movzbl 0x4(%ecx),%edx
0xc0199819 <arpintr+237>: movzbl 0x5(%ecx),%eax
0xc019981d <arpintr+241>: leal 0x8(,%eax,2),%eax
0xc0199824 <arpintr+248>: leal (%eax,%edx,2),%edx
0xc0199827 <arpintr+251>: cmpl %edx,%esi
0xc0199829 <arpintr+253>: jae 0xc0199848 <arpintr+284>
0xc019982b <arpintr+255>: pushl $0xc024bb4b
0xc0199830 <arpintr+260>: pushl $0x3
0xc0199832 <arpintr+262>: call 0xc015f524 <log>
0xc0199837 <arpintr+267>: pushl %ebx
0xc0199838 <arpintr+268>: call 0xc016d99c <m_freem>
0xc019983d <arpintr+273>: addl $0xc,%esp
0xc0199840 <arpintr+276>: jmp 0xc0199731 <arpintr+5>
0xc0199845 <arpintr+281>: leal 0x0(%esi),%esi
0xc0199848 <arpintr+284>: movzwl 0x2(%ecx),%eax
0xc019984c <arpintr+288>: xchgb %ah,%al
0xc019984e <arpintr+290>: cmpw $0x800,%ax
0xc0199852 <arpintr+294>: jne 0xc019985c <arpintr+304>
0xc0199854 <arpintr+296>: pushl %ebx
0xc0199855 <arpintr+297>: call 0xc0199874 <in_arpinput>
0xc019985a <arpintr+302>: jmp 0xc0199862 <arpintr+310>
0xc019985c <arpintr+304>: pushl %ebx
0xc019985d <arpintr+305>: call 0xc016d99c <m_freem>
0xc0199862 <arpintr+310>: addl $0x4,%esp
0xc0199865 <arpintr+313>: jmp 0xc0199731 <arpintr+5>
0xc019986a <arpintr+318>: movl %esi,%esi
0xc019986c <arpintr+320>: leal 0xfffffff8(%ebp),%esp
0xc019986f <arpintr+323>: popl %ebx
0xc0199870 <arpintr+324>: popl %esi
0xc0199871 <arpintr+325>: leave
0xc0199872 <arpintr+326>: ret
End of assembler dump.
--
[ Jim Mercer [EMAIL PROTECTED] +1 416 506-0654 ]
[ Reptilian Research -- Longer Life through Colder Blood ]
[ Don't be fooled by cheap Finnish imitations; BSD is the One True Code. ]
#
machine i386
cpu I586_CPU
cpu I686_CPU
ident "NAG-ORANGE"
maxusers 64
makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
options INET #InterNETworking
#options INET6 #IPv6 communications protocols
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
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 required
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
options CD9660_ROOT #CD-ROM usable as root, CD9660 required
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=15000 #Delay (in ms) before probing SCSI
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 extentions
options _KPOSIX_PRIORITY_SCHEDULING
options ICMP_BANDLIM #Rate limit bad replies
options INCLUDE_CONFIG_FILE # Include this file in kernel
options IPFIREWALL #firewall
options IPFIREWALL_VERBOSE #print information about
# dropped packets
options IPFIREWALL_FORWARD #enable transparent proxy support
options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
options TCP_DROP_SYNFIN #drop TCP packets with SYN+FIN
options TCP_RESTRICT_RST #restrict emission of TCP RST
options DUMMYNET
options MD5
# To make an SMP kernel, the next two are needed
options SMP # Symmetric MultiProcessor Kernel
options APIC_IO # Symmetric (APIC) I/O
# Optionally these may need tweaked, (defaults shown):
#options NCPU=2 # number of CPUs
#options NBUS=4 # number of busses
#options NAPIC=1 # number of IO APICs
#options NINTR=24 # number of INTs
device isa
device pci
# Floppy drives
device fdc0 at isa? port IO_FD1 irq 6 drq 2
device fd0 at fdc0 drive 0
# SCSI Controllers
device ahc # AHA2940 and onboard AIC7xxx devices
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1
device vga0 at isa?
# splash screen/screen saver
pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa?
# Floating point support - do not disable.
device npx0 at nexus? port IO_NPX irq 13
# Serial (COM) ports
device sio0 at isa? port IO_COM1 flags 0x10 irq 4
device sio1 at isa? port IO_COM2 irq 3
# 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
# PCI Ethernet NICs that use the common MII bus controller code.
device miibus # MII bus support
device rl # RealTek 8129/8139
# Pseudo devices - the number indicates how many units to allocated.
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
pseudo-device pty # Pseudo-ttys (telnet etc)
pseudo-device md # Memory "disks"
pseudo-device bpf #Berkeley packet filter
