From nobody@FreeBSD.ORG  Sun Oct  8 10:46:18 2000
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Date: Sun,  8 Oct 2000 10:46:18 -0700 (PDT)
From: bjlin@stic.gov.tw
Sender: nobody@FreeBSD.ORG
To: freebsd-gnats-submit@FreeBSD.org
Subject: kernel trap 12 crash in 4.1.1-STABLE
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>Number:         21831
>Category:       kern
>Synopsis:       kernel trap 12 crash in 4.1.1-STABLE
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    gibbs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Oct 08 10:50:00 PDT 2000
>Closed-Date:    Sat Feb 24 11:54:10 PST 2001
>Last-Modified:  Sat Feb 24 11:54:48 PST 2001
>Originator:     Biing Jong Lin
>Release:        4.1.1-STABLE
>Organization:
Science and Technology Info Center
>Environment:
FreeBSD camera.stic.gov.tw 4.1.1-STABLE FreeBSD 4.1.1-STABLE #1: Sun Oct  8 21:04:31 GMT 2000     root@camera.stic.gov.tw:/usr/src/sys/compile/camera  i386
>Description:
I've got random crash on 4.1.1-Stable.

I just updated the system 30 min. ago, and it just crashes 
when I make ports (or kernel, system).
It says fatal error 12 (page fault in kernel mode).
The debug message is:

Fault Virtual Address:  0x30
Fault Code: supervisor read, page not present.
Instruction Pointer: 0x8, 0xc01f7758
Stack Pointer: 0x10, 0xc028435c
Frame Pointer: 0x10, 0xc0284360
Code Segement: base 0x0,limit 0xfffff type 0x1b
             : DPL 0,pres 1,def 32 1, gran 1
Processir eflags: int enabled, resume, IOPL=0
Current process: Idle
interrupt mask: bio cam
trap number : 12

>How-To-Repeat:
random crash, usually crash within 10 min.
>Fix:


>Release-Note:
>Audit-Trail:

From: Justin Gibbs <gibbs@plutotech.com>
To: bjlin@stic.gov.tw
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: kern/21831: kernel trap 12 crash in 4.1.1-STABLE
Date: Sun, 8 Oct 2000 12:12:13 -0600 (MDT)

 > I've got random crash on 4.1.1-Stable.
 > 
 > I just updated the system 30 min. ago, and it just crashes 
 > when I make ports (or kernel, system).
 > It says fatal error 12 (page fault in kernel mode).
 > The debug message is:
 
 You need to:
 
 a) Provide a dmesg listing from a boot -v of your system
    before the problems began.
 
 b) Perform an nm /kernel | sort and locate the function that
    contains the instruction 0xc01f7758.
 
 or even better yet
 
 c) put options DDB into your kernel config file and provide
    the output of "trace" when you system panics.
  
 --
 Justin
 

From: <wing@mail.stic.gov.tw>
To: freebsd-gnats-submit@FreeBSD.org
Cc:  
Subject: Re: kern/21831: kernel trap 12 crash in 4.1.1-STABLE
Date: Tue, 10 Oct 2000 13:27:11 -0000

 >You need to:
 >
 > a) Provide a dmesg listing from a boot -v of your system
 >    before the problems began.
 %uname -a
 FreeBSD camera.stic.gov.tw 4.1.1-STABLE FreeBSD 4.1.1-STABLE #1: Sun Oct  8
 21:04:31 GMT 2000     root@camera.stic.gov.tw:/usr/src/sys/compile/camera
 i386
 
 %dmesg
 Copyright (c) 1992-2000 The FreeBSD Project.
 Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
 FreeBSD 4.1.1-STABLE #1: Sun Oct  8 21:04:31 GMT 2000
     root@camera.stic.gov.tw:/usr/src/sys/compile/camera
 Timecounter "i8254"  frequency 1193182 Hz
 CPU: Pentium III/Pentium III Xeon/Celeron (598.98-MHz 686-class CPU)
   Origin = "GenuineIntel"  Id = 0x673  Stepping = 3
 
 Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,
 CMOV,PAT,PSE36,MMX,FXSR,SSE>
 real memory  = 536858624 (524276K bytes)
 avail memory = 519630848 (507452K bytes)
 Preloaded elf kernel "kernel" at 0xc030f000.
 Pentium Pro MTRR support enabled
 npx0: <math processor> on motherboard
 npx0: INT 16 interface
 pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
 pci0: <PCI bus> on pcib0
 pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
 pci1: <PCI bus> on pcib1
 pci1: <Matrox MGA G400 AGP graphics accelerator> at 0.0 irq 9
 fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0x68e0-0x68ff mem
 0xf7600000-0xf76fffff,0xeffff000-0xefffffff irq 14 at device 2.0 on pci0
 fxp0: Ethernet address 00:06:29:ee:9f:be
 ahc0: <Adaptec aic7895 Ultra SCSI adapter> port 0x7000-0x70ff mem
 0xf75fd000-0xf75fdfff irq 10 at device 3.0 on pci0
 aic7895C: Wide Channel A, SCSI Id=7, 32/255 SCBs
 ahc1: <Adaptec aic7895 Ultra SCSI adapter> port 0x7400-0x74ff mem
 0xf75fe000-0xf75fefff irq 10 at device 3.1 on pci0
 aic7895C: Wide Channel B, SCSI Id=7, 32/255 SCBs
 isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
 isa0: <ISA bus> on isab0
 atapci0: <Intel PIIX4 ATA33 controller> port 0xfff0-0xffff at device 4.1 on
 pci0
 ata1: at 0x170 irq 15 on atapci0
 pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 4.2 irq 10
 chip1: <Intel 82371AB Power management controller> port 0xfe00-0xfe0f at
 device 4.3 on pci0
 ahc2: <Adaptec 2940 Ultra2 SCSI adapter> port 0x7800-0x78ff mem
 0xf75ff000-0xf75fffff irq 14 at device 14.0 on pci0
 aic7890/91: Wide Channel A, SCSI Id=7, 32/255 SCBs
 xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0x6c00-0x6c7f mem
 0xf75fcf80-0xf75fcfff irq 9 at device 16.0 on pci0
 xl0: Ethernet address: 00:50:da:8a:6e:08
 miibus0: <MII bus> on xl0
 xlphy0: <3c905C 10/100 internal PHY> on miibus0
 xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
 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
 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
 sc0: <System console> at flags 0x100 on isa0
 sc0: VGA <16 virtual consoles, flags=0x300>
 sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
 sio0: type 16550A
 sio1 at port 0x2f8-0x2ff irq 3 on isa0
 sio1: type 16550A
 ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
 ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode
 ppc0: FIFO with 16/16/8 bytes threshold
 ppi0: <Parallel I/O> on ppbus0
 plip0: <PLIP network interface> on ppbus0
 lpt0: <Printer> on ppbus0
 lpt0: Interrupt-driven port
 acd0: CDROM <LTN403> at ata1-master using PIO4
 Waiting 5 seconds for SCSI devices to settle
 da3 at ahc2 bus 0 target 6 lun 0
 da3: <Proware 5960RN > Fixed Direct Access SCSI-2 device
 da3: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing
 Enabled
 da3: 208384MB (426770432 512 byte sectors: 255H 63S/T 26565C)
 da0 at ahc0 bus 0 target 0 lun 0
 da0: <IBM DMVS36V 0100> Fixed Direct Access SCSI-3 device
 da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing
 Enabled
 da0: 35003MB (71687340 512 byte sectors: 255H 63S/T 4462C)
 da1 at ahc0 bus 0 target 1 lun 0
 da1: <IBM DMVS36V 0100> Fixed Direct Access SCSI-3 device
 da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing
 Enabled
 da1: 35003MB (71687340 512 byte sectors: 255H 63S/T 4462C)
 da2 at ahc1 bus 0 target 9 lun 0
 da2: <Proware 5960RN > Fixed Direct Access SCSI-2 device
 da2: 20.000MB/s transfers (10.000MHz, offset 8, 16bit), Tagged Queueing
 Enabled
 da2: 208384MB (426770432 512 byte sectors: 255H 63S/T 26565C)
 
 >b) Perform an nm /kernel | sort and locate the function that
 >   contains the instruction 0xc01f7758.
 > nm /kernel | sort | grep c01f7
 
 c01f7464 t ffs_indirtrunc
 c01f771c t acquire_lock
 c01f776c t free_lock
 c01f7794 t acquire_lock_interlocked
 c01f77d8 t free_lock_interlocked
 c01f77fc t sema_init
 c01f7828 t sema_get
 c01f7894 t sema_release
 c01f78d8 t worklist_insert
 c01f7924 t worklist_remove
 c01f7974 t workitem_free
 c01f79b4 t add_to_worklist
 c01f7a1c t softdep_process_worklist
 c01f7c20 t softdep_move_dependencies
 c01f7cd0 T softdep_flushfiles
 c01f7e40 t pagedep_lookup
 c01f7f94 t inodedep_lookup
 
 
 

From: "Biing Jong Lin" <bjlin@mail.stic.gov.tw>
To: <freebsd-gnats-submit@FreeBSD.org>
Cc:  
Subject: Re: kern/21831: kernel trap 12 crash in 4.1.1-STABLE
Date: Thu, 12 Oct 2000 16:55:50 +0800

 I've just recompiled kernel with DDB option, here is the pr update:
 
 ahc0:A:0:  ahc_intr - referenced scb not valid during seqint 0x73 scb (29)
 ahc0: WARNING no command for scb 29 (cmdcmplt)
 QOUTPOS: 100
 
 Fault Virtual Address:  0x0
 Fault Code: supervisor read, page not present.
 Instruction Pointer: 0x8, 0xc01330fd
 Stack Pointer: 0x10, 0xd5e46e90
 Frame Pointer: 0x10, 0xd5e46ea0
 Code Segement: base 0x0,limit 0xfffff type 0x1b
              : DPL 0,pres 1,def 32 1, gran 1
 Processir eflags: int enabled, resume, IOPL=0
 Current process: 562 (cc1)
 interrupt mask: cam
 trap number : type 12,code = 0
 stop at: ahc_match_scb+0x15:  movl 0(%edi),%eax
 
 db>trace
 ahc_match_scb(c14c9400,0,0,41,0,ff,0) at ahc_match_scb+0x15
 ahc_search_qinfifo(c14c9400,0,41,0,ff) at ahc_search_qinfifo+0xef
 ahc_freeze_devq(c14c9400,c14d63a8)at ahc_freeze_devq+0x5d
 ahc_handle_seqint(c14c9400,6c4400,81ff8e0,9,bfbfa898) at
 ahc_handle_seqint+0x148
 ahc_freebsd_intr(c14c9400,6c4400,81ff8e0,9,bfbfa898 at ahc_freebsd_intr+0x94
 intr_mux(c1039760,0,2f,2f,2f) at intr_mux+0x1d)
 Xresume10() at Xresume10+0x2b
 --interrupt, eip: 0x814383c, esp=0xd5e46fe0, ebp=0xbfbfa898
 
 > nm /kernel | sort | grep c0133
 c0133088 t ahc_busy_tcl
 c01330e8 t ahc_match_scb
 c01331dc T ahc_freeze_devq
 c0133240 t ahc_qinfifo_requeue
 c0133298 T ahc_search_qinfifo
 c013371c T ahc_search_disc_list
 c0133840 t ahc_rem_scb_from_disc_list
 c01338b0 t ahc_add_curscb_to_free_list
 c01338e8 t ahc_rem_wscb
 c013397c t ahc_abort_scbs
 c0133c60 t ahc_reset_current_bus
 c0133ca8 T ahc_reset_channel
 c0133ff0 t ahc_calc_residual
 
 > uname -a
 FreeBSD camera.stic.gov.tw 4.1.1-STABLE FreeBSD 4.1.1-STABLE #2: Wed Oct 11
 11:32:54 GMT 2000     root@camera.stic.gov.tw:/usr/src/sys/compile/camera
 i386
 
 >dmesg
 Copyright (c) 1992-2000 The FreeBSD Project.
 Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
 FreeBSD 4.1.1-STABLE #2: Wed Oct 11 11:32:54 GMT 2000
     root@camera.stic.gov.tw:/usr/src/sys/compile/camera
 Timecounter "i8254"  frequency 1193182 Hz
 Timecounter "TSC"  frequency 598980154 Hz
 CPU: Pentium III/Pentium III Xeon/Celeron (598.98-MHz 686-class CPU)
   Origin = "GenuineIntel"  Id = 0x673  Stepping = 3
 
 Features=0x383fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,
 CM
 OV,PAT,PSE36,MMX,FXSR,SSE>
 real memory  = 536858624 (524276K bytes)
 avail memory = 519692288 (507512K bytes)
 Preloaded elf kernel "kernel" at 0xc0301000.
 Pentium Pro MTRR support enabled
 npx0: <math processor> on motherboard
 npx0: INT 16 interface
 pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
 pci0: <PCI bus> on pcib0
 pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
 pci1: <PCI bus> on pcib1
 pci1: <Matrox MGA G400 AGP graphics accelerator> at 0.0 irq 9
 fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0x68e0-0x68ff mem
 0xf7600000-0xf76f
 ffff,0xeffff000-0xefffffff irq 14 at device 2.0 on pci0
 fxp0: Ethernet address 00:06:29:ee:9f:be
 ahc0: <Adaptec aic7895 Ultra SCSI adapter> port 0x7000-0x70ff mem
 0xf75fd000-0xf
 75fdfff irq 10 at device 3.0 on pci0
 aic7895C: Wide Channel A, SCSI Id=7, 32/255 SCBs
 ahc1: <Adaptec aic7895 Ultra SCSI adapter> port 0x7400-0x74ff mem
 0xf75fe000-0xf
 75fefff irq 10 at device 3.1 on pci0
 aic7895C: Wide Channel B, SCSI Id=7, 32/255 SCBs
 isab0: <Intel 82371AB PCI to ISA bridge> at device 4.0 on pci0
 isa0: <ISA bus> on isab0
 atapci0: <Intel PIIX4 ATA33 controller> port 0xfff0-0xffff at device 4.1 on
 pci0
 ata1: at 0x170 irq 15 on atapci0
 pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 4.2 irq 10
 chip1: <Intel 82371AB Power management controller> port 0xfe00-0xfe0f at
 device
 4.3 on pci0
 ahc2: <Adaptec 2940 Ultra2 SCSI adapter> port 0x7800-0x78ff mem
 0xf75ff000-0xf75
 fffff irq 14 at device 14.0 on pci0
 aic7890/91: Wide Channel A, SCSI Id=7, 32/255 SCBs
 xl0: <3Com 3c905C-TX Fast Etherlink XL> port 0x6c00-0x6c7f mem
 0xf75fcf80-0xf75f
 cfff irq 9 at device 16.0 on pci0
 xl0: Ethernet address: 00:50:da:8a:6e:08
 miibus0: <MII bus> on xl0
 xlphy0: <3c905C 10/100 internal PHY> on miibus0
 xlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
 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
 vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
 sc0: <System console> at flags 0x100 on isa0
 sc0: VGA <16 virtual consoles, flags=0x300>
 sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
 sio0: type 16550A
 sio1 at port 0x2f8-0x2ff irq 3 on isa0
 sio1: type 16550A
 ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
 ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode
 ppc0: FIFO with 16/16/8 bytes threshold
 plip0: <PLIP network interface> on ppbus0
 lpt0: <Printer> on ppbus0
 lpt0: Interrupt-driven port
 ppi0: <Parallel I/O> on ppbus0
 acd0: CDROM <LTN403> at ata1-master using PIO4
 Waiting 5 seconds for SCSI devices to settle
 da3 at ahc2 bus 0 target 6 lun 0
 da3: <Proware 5960RN > Fixed Direct Access SCSI-2 device
 da3: 40.000MB/s transfers (20.000MHz, offset 31, 16bit), Tagged Queueing
 Enabled
 da3: 208384MB (426770432 512 byte sectors: 255H 63S/T 26565C)
 da0 at ahc0 bus 0 target 0 lun 0
 da0: <IBM DMVS36V 0100> Fixed Direct Access SCSI-3 device
 da0: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing
 Enabled
 da0: 35003MB (71687340 512 byte sectors: 255H 63S/T 4462C)
 da1 at ahc0 bus 0 target 1 lun 0
 da1: <IBM DMVS36V 0100> Fixed Direct Access SCSI-3 device
 da1: 40.000MB/s transfers (20.000MHz, offset 8, 16bit), Tagged Queueing
 Enabled
 da1: 35003MB (71687340 512 byte sectors: 255H 63S/T 4462C)
 da2 at ahc1 bus 0 target 9 lun 0
 da2: <Proware 5960RN > Fixed Direct Access SCSI-2 device
 da2: 20.000MB/s transfers (10.000MHz, offset 8, 16bit), Tagged Queueing
 Enabled
 da2: 208384MB (426770432 512 byte sectors: 255H 63S/T 26565C)
 
 
 kernel config:
 machine         i386
 cpu             I686_CPU
 ident           camera
 maxusers        64
 
 #makeoptions    DEBUG=-g                #Build kernel with gdb(1) debug
 symbols
 makeoptions     COPTFLAGS="-O2 -pipe"
 
 options         MATH_EMULATE            #Support for x87 emulation
 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         NFS                     #Network Filesystem
 options         CD9660                  #ISO 9660 Filesystem
 options         PROCFS                  #Process filesystem
 options         COMPAT_43               #Compatible with BSD 4.3 [KEEP
 THIS!]
 options         SCSI_DELAY=5000         #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         ICMP_BANDLIM            #Rate limit bad replies
 options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
 
 # 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
 
 #
 # Enable the kernel debugger.
 #
 options         DDB
 
 device          isa
 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
 device          atapifd                 # ATAPI floppy drives
 device          atapist                 # ATAPI tape drives
 options         ATA_STATIC_ID           #Static device numbering
 #options        ATA_ENABLE_ATAPI_DMA    #Enable DMA on ATAPI devices
 
 # 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 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
 
 # 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
 
 # Power management support (see LINT for more options)
 #device         apm0    at nexus? disable flags 0x20 # Advanced Power
 Management
 
 # PCCARD (PCMCIA) support
 #device         card
 #device         pcic0   at isa? irq 10 port 0x3e0 iomem 0xd0000
 #device         pcic1   at isa? irq 11 port 0x3e2 iomem 0xd4000 disable
 
 # 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
 #device         vpo             # Requires scbus and da
 
 
 # PCI Ethernet NICs.
 device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
 
 # PCI Ethernet NICs that use the common MII bus controller code.
 device          miibus          # MII bus support
 device          xl              # 3Com 3c90x (``Boomerang'', ``Cyclone'')
 
 # Pseudo devices - the number indicates how many units to allocated.
 pseudo-device   loop            # Network loopback
 pseudo-device   ether           # Ethernet support
 pseudo-device   tun             # Packet tunnel.
 pseudo-device   pty             # Pseudo-ttys (telnet etc)
 
 # The `bpf' pseudo-device enables the Berkeley Packet Filter.
 # Be aware of the administrative consequences of enabling this!
 pseudo-device   bpf     4       #Berkeley packet filter
 pseudo-device   snp     4
 
 options         TCP_DROP_SYNFIN
 options         TCP_RESTRICT_RST
 
 
 
 
 
 
Responsible-Changed-From-To: freebsd-bugs->gibbs 
Responsible-Changed-By: johan 
Responsible-Changed-When: Sun Oct 15 05:55:21 PDT 2000 
Responsible-Changed-Why:  
In the latest follow-up this seems to be ahc related. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=21831 
State-Changed-From-To: open->closed 
State-Changed-By: gibbs 
State-Changed-When: Sat Feb 24 11:54:10 PST 2001 
State-Changed-Why:  
I believe this was fixed by the correction of an spl bug several months ago. 
Please reopen a PR if this is not the case. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=21831 
>Unformatted:
