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

[Paul B. Mahol]

On 9/24/09, Raphael Kubo da Costa <kubito at gmail.com> wrote:
> 2009/9/22 Paul B. Mahol <onemda at gmail.com>:
>> On 9/22/09, Raphael Kubo da Costa <kubito at gmail.com> wrote:
>>> While I'm not at home to do the other things you've mentioned: I don't
>>> even have time to run ifconfig - I've commented out the lines enabling
>>> ndis, if_ndis and rtl8180_sys in /boot/loader.conf. I just run kldload
>>> rtl8180_sys the kernel panics automatically.
>>
>> Just make sure you are using correct kernel source files(8.0 and not 7.X).
>
> Well, after trying to fix things I ended up with a system that
> wouldn't even boot. So I formatted everything and installed 8.0-RC1
> from the DVD.

Does this installation installed new 8.0-RC1 sources in /sys ?
>
> ndisgen worked fine and I was able to load the module I had generated.
> However, wpa_supplicant does not work, and always writes the following

With what arguments did wpa_supplicant start?

> error messages after I try to use /etc/rc.d/netif restart:
>
> Sep 24 01:30:53 borges wpa_supplicant[1689]: Failed to initialize
> driver interface
> ifconfig: ioctl(SIOCAIFADDR): Invalid argument
> ioctl[SIOCG80211, op 98, len 32]: Invalid argument
>
> When I unloaded the ndis, if_ndis and rtl8180_sys modules and tried to
> kldload the latter, the kernel panicked again.
>
> Fatal trap 12: page fault while in kernel mode
> cpuid = 0; apic id = 00
> fault virtual address   = 0xc4b3631a
> fault code              = supervisor read, page not present
> instruction pointer     = 0x20:0xc4b136b3
> stack pointer           = 0x28:0xe3617a44
> frame pointer           = 0x28:0xe3617aac
> 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         = 2223 (ifconfig)

But ifconfig is here again. So panic did not happened while loading module.

> trap number             = 12
> panic: page fault
> cpuid = 0
> Uptime: 6m6s
> Physical memory: 883 MB
> Dumping 69 MB: 54 38 22 6
>
>
> Reading symbols from /boot/kernel/if_ndis.ko...Reading symbols from
> /boot/kernel/if_ndis.k
> o.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.symb
> ols...done.
> done.
> Loaded symbols for /boot/kernel/ndis.ko
> Reading symbols from /boot/modules/rtl8180_sys.ko...done.
> Loaded symbols for /boot/modules/rtl8180_sys.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=0xe3617a04, eva=3300090650)
>     at /usr/src/sys/i386/i386/trap.c:933
> #4  0xc0bb36f0 in trap_pfault (frame=0xe3617a04, usermode=0, eva=3300090650)
>     at /usr/src/sys/i386/i386/trap.c:846
> #5  0xc0bb40d5 in trap (frame=0xe3617a04) at
> /usr/src/sys/i386/i386/trap.c:528
> #6  0xc0b96a4b in calltrap () at /usr/src/sys/i386/i386/exception.s:165
> #7  0xc4b136b3 in ndis_rtl8180_sys_drv_data_start ()
>    from /boot/modules/rtl8180_sys.ko
> Previous frame inner to this frame (corrupt stack?)
> (kgdb)
>

The backtrace is useless - dead end.

-- 
Paul