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Date:      Thu, 24 Sep 2009 09:46:25 -0300
From:      Raphael Kubo da Costa <kubito@gmail.com>
To:        "Paul B. Mahol" <onemda@gmail.com>
Cc:        freebsd-current@freebsd.org
Subject:   Re: 8.0RC1 - Kernel panic when loading a ndisgen-generated module  (rtl8180_sys)
Message-ID:  <68c3445d0909240546n371fe467wbf7ffb7284a9099@mail.gmail.com>
In-Reply-To: <3a142e750909240244h59a4a001o13a4a7a46e7a75a1@mail.gmail.com>
References:  <68c3445d0909212153rf19ec23p81ecc0a070f6d594@mail.gmail.com> <3a142e750909220343k153daac0xc00099fc09c176ac@mail.gmail.com> <68c3445d0909220551k33973d38iccf20c030a00b6c8@mail.gmail.com> <3a142e750909221420m29ae8302t71ed9558c77542f4@mail.gmail.com> <68c3445d0909221449g62904ae7pa4deb939baf4be1@mail.gmail.com> <3a142e750909221453l25d5dc8eifcbe70b39ced2ea8@mail.gmail.com> <68c3445d0909232143r623d9d2ex768578ff6c26d3b9@mail.gmail.com> <3a142e750909240244h59a4a001o13a4a7a46e7a75a1@mail.gmail.com>

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2009/9/24 Paul B. Mahol <onemda@gmail.com>:
> On 9/24/09, Raphael Kubo da Costa <kubito@gmail.com> wrote:
>> 2009/9/22 Paul B. Mahol <onemda@gmail.com>:
>>> On 9/22/09, Raphael Kubo da Costa <kubito@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 =3D 0; apic id =3D 00
>> fault virtual address =A0 =3D 0xc4b3631a
>> fault code =A0 =A0 =A0 =A0 =A0 =A0 =A0=3D supervisor read, page not pres=
ent
>> instruction pointer =A0 =A0 =3D 0x20:0xc4b136b3
>> stack pointer =A0 =A0 =A0 =A0 =A0 =3D 0x28:0xe3617a44
>> frame pointer =A0 =A0 =A0 =A0 =A0 =3D 0x28:0xe3617aac
>> code segment =A0 =A0 =A0 =A0 =A0 =A0=3D base 0x0, limit 0xfffff, type 0x=
1b
>> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =3D DPL 0, pres 1, def32=
 1, gran 1
>> processor eflags =A0 =A0 =A0 =A0=3D interrupt enabled, resume, IOPL =3D =
0
>> current process =A0 =A0 =A0 =A0 =3D 2223 (ifconfig)
>
> But ifconfig is here again. So panic did not happened while loading modul=
e.
Is there anything I can do to get more information about this?
>
>> trap number =A0 =A0 =A0 =A0 =A0 =A0 =3D 12
>> panic: page fault
>> cpuid =3D 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 =A0doadump () at pcpu.h:246
>> 246 =A0 =A0 pcpu.h: No such file or directory.
>> =A0 =A0 =A0 =A0 in pcpu.h
>> (kgdb) #0 =A0doadump () at pcpu.h:246
>> #1 =A00xc08823c7 in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdow=
n.c:416
>> #2 =A00xc08826b9 in panic (fmt=3DVariable "fmt" is not available.
>> ) at /usr/src/sys/kern/kern_shutdown.c:579
>> #3 =A00xc0bb346c in trap_fatal (frame=3D0xe3617a04, eva=3D3300090650)
>> =A0 =A0 at /usr/src/sys/i386/i386/trap.c:933
>> #4 =A00xc0bb36f0 in trap_pfault (frame=3D0xe3617a04, usermode=3D0, eva=
=3D3300090650)
>> =A0 =A0 at /usr/src/sys/i386/i386/trap.c:846
>> #5 =A00xc0bb40d5 in trap (frame=3D0xe3617a04) at
>> /usr/src/sys/i386/i386/trap.c:528
>> #6 =A00xc0b96a4b in calltrap () at /usr/src/sys/i386/i386/exception.s:16=
5
>> #7 =A00xc4b136b3 in ndis_rtl8180_sys_drv_data_start ()
>> =A0 =A0from /boot/modules/rtl8180_sys.ko
>> Previous frame inner to this frame (corrupt stack?)
>> (kgdb)
>>
>
> The backtrace is useless - dead end.
>
> --
> Paul



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