8.0RC1 - Kernel panic when loading a ndisgen-generated module (rtl8180_sys)

Hi there,

I'm not sure this is the proper place to send this, so please tell me
if I should send this mail to another mailing list or file a PR about
this.

I used freebsd-update to upgrade from 7.2-RELEASE-p3 to 8.0-RC1.
Everything went fine, but I had to regenerate my wireless card
(Realtek RTL8180L) module with ndisgen. However, when I load the
generated module with kldload I get a kernel panic and the system
reboots. I also have a 67mb vmcore; I can try to make it available if
needed.

I'll paste some sections from core.txt; I can attach the whole file if you want.

-----------

Unread portion of the kernel message buffer:


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xc4ea831a
fault code		= supervisor read, page not present
instruction pointer	= 0x20:0xc4df96b3
stack pointer	        = 0x28:0xe3744a44
frame pointer	        = 0x28:0xe3744aac
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, def32 1, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 1110 (ifconfig)
trap number		= 12
panic: page fault
cpuid = 0
Uptime: 36s
Physical memory: 883 MB
Dumping 67 MB: 52 36 20 4

Reading symbols from /boot/kernel/snd_hda.ko...Reading symbols from
/boot/kernel/snd_hda.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/snd_hda.ko
Reading symbols from /boot/kernel/sound.ko...Reading symbols from
/boot/kernel/sound.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/sound.ko
Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from
/boot/kernel/linprocfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from
/boot/kernel/linux.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /boot/kernel/reiserfs.ko...Reading symbols from
/boot/kernel/reiserfs.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/reiserfs.ko
Reading symbols from /boot/kernel/logo_saver.ko...Reading symbols from
/boot/kernel/logo_saver.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/logo_saver.ko
Reading symbols from /boot/modules/rtl8180_sys.ko...done.
Loaded symbols for /boot/modules/rtl8180_sys.ko
Reading symbols from /boot/kernel/if_ndis.ko...Reading symbols from
/boot/kernel/if_ndis.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/if_ndis.ko
Reading symbols from /boot/kernel/ndis.ko...Reading symbols from
/boot/kernel/ndis.ko.symbols...done.
done.
Loaded symbols for /boot/kernel/ndis.ko
#0  doadump () at pcpu.h:246
246	pcpu.h: No such file or directory.
	in pcpu.h
(kgdb) #0  doadump () at pcpu.h:246
#1  0xc08823c7 in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:416
#2  0xc08826b9 in panic (fmt=Variable "fmt" is not available.
) at /usr/src/sys/kern/kern_shutdown.c:579
#3  0xc0bb346c in trap_fatal (frame=0xe3744a04, eva=3303703322)
    at /usr/src/sys/i386/i386/trap.c:933
#4  0xc0bb36f0 in trap_pfault (frame=0xe3744a04, usermode=0, eva=3303703322)
    at /usr/src/sys/i386/i386/trap.c:846
#5  0xc0bb40d5 in trap (frame=0xe3744a04) at /usr/src/sys/i386/i386/trap.c:528
#6  0xc0b96a4b in calltrap () at /usr/src/sys/i386/i386/exception.s:165
#7  0xc4df96b3 in ndis_rtl8180_sys_drv_data_start ()
   from /boot/modules/rtl8180_sys.ko
Previous frame inner to this frame (corrupt stack?)
(kgdb)


------ Last lines from dmesg --------
Tue Sep 22 01:02:49 BRT 2009
Sep 22 01:02:55 borges login: ROOT LOGIN (root) ON ttyv0
warning: KLD '/boot/modules/rtl8180_sys.ko' is newer than the linker.hints file
ndis0: <Realtek RTL8180 Wireless LAN (Mini-)PCI NIC> port
0xe800-0xe8ff mem 0xdffffc00-0xdffffcff irq 16 at device 6.0 on pci1
ndis0: [ITHREAD]
ndis0: NDIS API version: 5.1
ifa_add_loopback_route: insertion failed


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0xc4ea831a
fault code		= supervisor read, page not present
instruction pointer	= 0x20:0xc4df96b3
stack pointer	        = 0x28:0xe3744a44
frame pointer	        = 0x28:0xe3744aac
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, def32 1, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 1110 (ifconfig)
trap number		= 12
panic: page fault
cpuid = 0
Uptime: 36s
Physical memory: 883 MB
Dumping 67 MB: 52 36 20 4

------------------------------------------------------------------------
kernel config

config: File /boot/kernel/kernel doesn't contain configuration file.
Either unsupported, or not compiled with INCLUDE_CONFIG_FILE