In article <Pine.NEB.4.43.0202011911160.17309-100000@woffi.planix.com>,
Andreas Wrede <andreas@planix.com> wrote:

This is a known problem that started last November and there is even
a PR for it. I sent kim some debugging code to try to track this
down, but he has not had time yet. Can you help me debug it?

christos

>For the last couple of weeks I have been getting semi-regular panic:
>m_copydata on two separate Compaq machines running as firewalls and
>IPSec gateways. Both are running 1.5.2 with IPsec enabled in an
>otherwise generic kernel. Today, I cvs update'd to the latest
>1.5.3_ALPHA sources and build a kernel with debugging support and
>promptly got another panic:
>
>(gdb) target kcore netbsd.58.core
>panic: m_copydata
>#0  0x100 in ?? ()
>(gdb) bt
>#0  0x100 in ?? ()
>#1  0xc02aaecb in cpu_reboot (howto=256, bootstr=0x0)
>    at ../../../../arch/i386/i386/machdep.c:1175
>#2  0xc0193cfd in panic () at ../../../../kern/subr_prf.c:240
>#3  0xc01a072a in m_copydata (m=0xc07de200, off=0, len=20, cp=0xca182d76 "")
>    at ../../../../kern/uipc_mbuf.c:583
>#4  0xc01cd926 in gif_encapcheck (m=0xc07de200, off=20, proto=41,
>    arg=0xc07d16d8) at ../../../../net/if_gif.c:232
>#5  0xc01f575c in encap4_input (m=0xc07de200)
>    at ../../../../netinet/ip_encap.c:194
>#6  0xc0219c05 in esp4_input (m=0xc07de200)
>    at ../../../../netinet6/esp_input.c:436
>#7  0xc01fa52c in ip_input (m=0xc07de200) at ../../../../netinet/ip_input.c:726
>#8  0xc01f9eb4 in ipintr () at ../../../../netinet/ip_input.c:337
>#9  0xc0101f8c in Xsoftnet ()
>(gdb)
>
>The machines run three IPsec tunnels (esp/transport) and have gif
>interfaces configured that implement tunneling on top of the IPsec
>connections.
>
>Any ideas?
>
>
>NetBSD 1.5.3_ALPHA (TUBE) #0: Fri Feb  1 11:16:05 EST 2002
>    root@tube.wrede.org:/usr/src/sys/arch/i386/compile/TUBE
>cpu0: Intel Pentium II/Celeron (Deschutes) (686-class), 348.21 MHz
>total memory = 127 MB
>avail memory = 114 MB
>using 1659 buffers containing 6636 KB of memory
>BIOS32 rev. 0 found at 0xec700
>mainbus0 (root)
>pci0 at mainbus0 bus 0: configuration mode 1
>pci0: i/o space, memory space enabled
>pchb0 at pci0 dev 0 function 0
>pchb0: Intel 82443BX Host Bridge/Controller (rev. 0x03)
>ppb0 at pci0 dev 1 function 0: Intel 82443BX AGP Interface (rev. 0x03)
>pci1 at ppb0 bus 1
>pci1: i/o space, memory space enabled
>vga1 at pci1 dev 0 function 0: Matrox MGA G200 AGP (rev. 0x03)
>wsdisplay0 at vga1: console (80x25, vt100 emulation)
>ex0 at pci0 dev 14 function 0: 3Com 3c905B-TX 10/100 Ethernet (rev. 0x30)
>ex0: interrupting at irq 11
>ex0: MAC address 00:50:04:74:71:52
>exphy0 at ex0 phy 24: 3Com internal media interface
>exphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>ex1 at pci0 dev 16 function 0: 3Com 3c905B-TX 10/100 Ethernet (rev. 0x30)
>ex1: interrupting at irq 11
>ex1: MAC address 00:50:04:74:71:23
>exphy1 at ex1 phy 24: 3Com internal media interface
>exphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
>pcib0 at pci0 dev 20 function 0
>pcib0: Intel 82371AB PCI-to-ISA Bridge (PIIX4) (rev. 0x02)
>pciide0 at pci0 dev 20 function 1: Intel 82371AB IDE controller (PIIX4)
>(rev. 0x01)
>pciide0: bus-master DMA support present
>pciide0: primary channel wired to compatibility mode
>wd0 at pciide0 channel 0 drive 0: <FUJITSU MPG3102AT E>
>wd0: drive supports 16-sector pio transfers, lba addressing
>wd0: 9773 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 20015856 sectors
>wd0: 32-bit data port
>wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5
>pciide0: primary channel interrupting at irq 14
>wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 (using DMA data transfers)
>pciide0: secondary channel wired to compatibility mode
>wd1 at pciide0 channel 1 drive 0: <FUJITSU MPG3102AT E>
>wd1: drive supports 16-sector pio transfers, lba addressing
>wd1: 9773 MB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 20015856 sectors
>wd1: 32-bit data port
>wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5
>pciide0: secondary channel interrupting at irq 15
>wd1(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (using DMA data transfers)
>uhci0 at pci0 dev 20 function 2: Intel 82371AB USB Host Controller
>(PIIX4) (rev. 0x01)
>uhci0: interrupting at irq 11
>usb0 at uhci0: USB revision 1.0
>uhub0 at usb0
>uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
>uhub0: 2 ports with 2 removable, self powered
>Intel 82371AB Power Management Controller (PIIX4) (miscellaneous bridge, revisio
>n 0x02) at pci0 dev 20 function 3 not configured
>isa0 at pcib0
>com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
>com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
>pckbc0 at isa0 port 0x60-0x64
>pckbd0 at pckbc0 (kbd slot)
>pckbc0: using irq 1 for kbd slot
>wskbd0 at pckbd0: console keyboard, using wsdisplay0
>lpt0 at isa0 port 0x378-0x37b irq 7
>pcppi0 at isa0 port 0x61
>sysbeep0 at pcppi0
>isapnp0 at isa0 port 0x279: ISA Plug 'n Play device support
>npx0 at isa0 port 0xf0-0xff: using exception 16
>fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
>fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
>isapnp0: no ISA Plug 'n Play devices found
>biomask ff65 netmask ff65 ttymask ffe7
>IPsec: Initialized Security Association Processing.
>warning: double match for boot device (wd0, wd1)
>boot device: wd0
>root on wd0a dumps on wd0b
>root file system type: ffs
>IP Filter: v3.4.9 initialized.  Default = pass all, Logging = enabled
>wsdisplay0: screen 1 added (80x25, vt100 emulation)
>wsdisplay0: screen 2 added (80x25, vt100 emulation)
>wsdisplay0: screen 3 added (80x25, vt100 emulation)
>wsdisplay0: screen 4 added (80x25, vt100 emulation)
>wsmux1: connecting to wsdisplay0
>
>-- 
>    - aew
>