miibus, ed0, and the realpath security advisory

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Date: Tue, 5 Aug 2003 09:52:13 -0400 (EDT)
To: freebsd-questions@freebsd.org

I cvsup'd on 7/3 after this week's realpath advisory, Rebuilt several
4.8-STABLE systems - most went fine. One system, an old 133Mhz machine
that acts as a firewall had several problems that weren't present with a
cvsup from 6/23. dmesg and kernel config below.

Problems:

I assume this one is harmless but it is new:
bios32: Bad BIOS32 Service Directory

Same for this:
pcibios: No call entry point

This is the one causing problems:

module_register: module miibus/ukphy already exists!
linker_file_sysinit "miibus.ko" failed to register! 17
module_register: module pci/ed already exists!
linker_file_sysinit "if_ed.ko" failed to register! 17

miibus and ed0 are statically linked yet these still show up. kldstat
shows that if_ed and miibus have been dynamically loaded even though they
are already in the kernel.

I see numerous mentions of this in recent mails but no explanation or work
around. Difficult to pin down but we begin to see network aberations
(traffic stops flowing through dc1) in the system after its run for
awhile (20 minutes) and the system has to be rebooted.

Remove ed0 from the kernel everything works fine except ed0 is missing,
(not dynamically loaded this time). miibus no longer shows up in kldstat
so the statically linked version is running.

----------------------------------------------------------------------
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 4.8-STABLE #0: Mon Aug 4 21:48:23 EDT 2003
    darren@olmec.nighttide.net:/usr/obj/usr/src/sys/JASPER
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 132632337 Hz
CPU: Pentium/P54C (132.63-MHz 586-class CPU)
  Origin = "GenuineIntel" Id = 0x52b Stepping = 11
  Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
real memory = 83886080 (81920K bytes)
avail memory = 78401536 (76564K bytes)
bios32: Bad BIOS32 Service Directory
Preloaded elf kernel "kernel" at 0xc031b000.
Intel Pentium detected, installing workaround for F00F bug
md0: Malloc disk
pcibios: No call entry point
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
isab0: <Intel 82371FB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
pci0: <Intel PIIX ATA controller> at 7.1
bt0: <Buslogic Multi-Master SCSI Host Adapter> port 0xfcec-0xfcef irq 9 at device 17.0 on pci0
bt0: BT-946C FW Rev. 4.25J Narrow SCSI Host Adapter, SCSI ID 7, 100 CCBs
pci0: <S3 Trio graphics accelerator> at 18.0 irq 11
dc0: <ADMtek AN985 10/100BaseTX> port 0xf800-0xf8ff mem 0xf0dffc00-0xf0dfffff irq 11 at device 19.0 on pci0
dc0: Ethernet address: 00:20:78:11:ac:82
miibus0: <MII bus> on dc0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc1: <ADMtek AN985 10/100BaseTX> port 0xf400-0xf4ff mem 0xf0dff800-0xf0dffbff irq 11 at device 20.0 on pci0
dc1: Ethernet address: 00:20:78:11:ac:8f
miibus1: <MII bus> on dc1
ukphy1: <Generic IEEE 802.3u media interface> on miibus1
ukphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
orm0: <Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcbfff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse Explorer, device ID 4
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
ed0 at port 0x340-0x35f iomem 0xd8000 irq 10 on isa0
ed0: address 00:40:05:1f:13:a0, type NE2000 (16 bit)
sbc0: <SoundBlaster 16> at port 0x220-0x22f irq 5 drq 1 flags 0x15 on isa0
pcm0: <SB16 DSP 4.13> on sbc0
IP packet filtering initialized, divert enabled, rule-based forwarding enabled, default to deny, logging limited to 100 packets/entry by default
Waiting 15 seconds for SCSI devices to settle
sa0 at bt0 bus 0 target 3 lun 0
sa0: <HP C1533A 9503> Removable Sequential Access SCSI-2 device
sa0: 10.000MB/s transfers (10.000MHz, offset 8)
da0 at bt0 bus 0 target 0 lun 0
da0: <SEAGATE ST39216N 0010> Fixed Direct Access SCSI-3 device
da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled
da0: 8761MB (17942584 512 byte sectors: 255H 63S/T 1116C)
cd0 at bt0 bus 0 target 6 lun 0
cd0: <PLEXTOR CD-ROM PX-20TS 1.00> Removable CD-ROM SCSI-2 device
cd0: 10.000MB/s transfers (10.000MHz, offset 15)
cd0: cd present [326227 x 2048 byte records]
Mounting root from ufs:/dev/da0s1a
module_register: module miibus/ukphy already exists!
linker_file_sysinit "miibus.ko" failed to register! 17
module_register: module pci/ed already exists!
linker_file_sysinit "if_ed.ko" failed to register! 17

----------------------------------------------------------------------
machine i386
cpu I586_CPU
ident JASPER

# should calc this its own now
#maxusers 32
maxusers 0

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

options IPFIREWALL
options IPFIREWALL_VERBOSE
options IPFIREWALL_VERBOSE_LIMIT=100
options IPDIVERT
options ICMP_BANDLIM #Rate limit bad replies

options MAXMEM="(80*1024)"
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options SOFTUPDATES #Enable FFS soft updates support
options MFS #Memory Filesystem
#options NFS_ROOT #NFS usable as root device, NFS required
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
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 extensions
options _KPOSIX_PRIORITY_SCHEDULING
options KBD_INSTALL_CDEV # install a CDEV entry in /dev

device isa
device pci

# Floppy drives
device fdc0 at isa? port IO_FD1 irq 6 drq 2
device fd0 at fdc0 drive 0

device bt0 at isa? #device aha0 at isa? #device aic0 at isa?

# 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 flags 0x1
device psm0 at atkbdc? irq 12

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? flags 0x100
device sc0 at isa?

# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
#device vt0 at isa?
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
#options PCVT_SCANSET=2 # IBM keyboards are non-std

# Floating point support - do not disable.
device npx0 at nexus? port IO_NPX irq 13

# PCCARD (PCMCIA) support
#device pcic0 at isa?
#device card
#device pcic0 at isa? irq 0 port 0x3e0 iomem 0xd0000
#device ray

# 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

# 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 NICs!
device miibus # MII bus support
device dc # DEC/Intel 21143 and various workalikes

# ISA Ethernet NICs.
device ed0 at isa? port 0x340 irq 10 iomem 0xd8000

# Pseudo devices - the number indicates how many units to allocated.
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"

# The `bpf' pseudo-device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
pseudo-device bpf #Berkeley packet filter

#device pcm0 at isa? irq 5 drq 1 flags 0x0
device pcm
device sbc0 at isa? port 0x220 irq 5 drq 1 flags 0x15

______________________________________________________________________
Darren Henderson darren@nighttide.net

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• Previous message: Dragoncrest: "Re: Well, we're getting closer. Still having issues installing BitTorrent."
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