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

[Raphael Kubo da Costa]

2009/9/24 Paul B. Mahol <onemda at gmail.com>:
> 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 ?
Yes.

>> 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?
I just ran /etc/rc.d/netif restart, so I'm not 100% sure. -D ndis -i
ndis0 -c /etc/wpa_supplicant.conf, I guess, since when I ran it with
these arguments the same errors were printed.
>
>> 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.
Is there anything I can do to get more information about this?
>
>> 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