kernel debugger on cubietruck

Ganbold Tsagaankhuu ganbold at gmail.com
Fri Oct 17 09:00:28 UTC 2014 

On Fri, Oct 17, 2014 at 4:45 PM, Gilles DALMAS <gdalmas at wanadoo.fr> wrote:

> Hi,
>
> I just saw this page of "man" on the website of freebsd, could she could
> not solve the problem of GMAC driver?
>
> http://www.freebsd.org/cgi/man.cgi?query=gem&sektion=4
>
>
>
If you referring by this to GMAC on A20 then no. However if_dwc driver
which was committed recently is close, but needs some more work to make it
work for A20.

Ganbold


>
>
>
> > Message du 20/09/14 16:30
>
> > De : "Ganbold Tsagaankhuu" <ganbold at gmail.com>
> > A : "Gilles DALMAS" <gdalmas at wanadoo.fr>
> > Copie à : "freebsd-arm at freebsd.org" <freebsd-arm at freebsd.org>
> > Objet : Re: kernel debugger on cubietruck
> >
> >
>
> >
>
> >
> On Sat, Sep 20, 2014 at 10:26 PM, Gilles DALMAS <gdalmas at wanadoo.fr>
> wrote:
> >
>>
>> > i comment emac line from :
>> >
>> > # Ethernet
>> > device        loop
>> > device        ether
>> > device        mii
>> > device        smscphy
>> > #device     cpsw
>> > device        bpf
>> >
>> > device        emac
>> >
>> > # USB ethernet support, requires miibus
>> > device        miibus
>>
>> >
>>
>> > and re run the compilation ?
>>
>
> >
> Just build kernel only and try.
>
> >
> Ganbold
>
>> >
>>
>> >
>>
>> > no need to re created the sd card ? just the USB flash ?
>>
>> >
>>
>> > Message du 20/09/14 16:09
>> > > De : "Ganbold Tsagaankhuu" <ganbold at gmail.com>
>> > > A : "Gilles DALMAS" <gdalmas at wanadoo.fr>
>> > > Copie à : "freebsd-arm at freebsd.org" <freebsd-arm at freebsd.org>
>>
>> > > Objet : Re: kernel debugger on cubietruck
>> > >
>> > >
>>
>> > >
>>
>> > >
>> On Sat, Sep 20, 2014 at 9:25 PM, Gilles DALMAS <gdalmas at wanadoo.fr>
>> wrote:
>> > >
>>>
>>> I did not know much about debug kernel, but when I pass the trace
>>> command, I get:
>>> > >
>>> > > db> trace
>>> > > Tracing pid 0 tid 100000 td 0xc08ba870
>>> > > db_trace_self() at db_trace_self
>>> > >          pc = 0xc04eba6c  lr = 0xc0232780 (db_hex2dec+0x4d8)
>>> > >          sp = 0xc08e5750  fp = 0xc08e5768
>>> > >         r10 = 0xc08ba1c4
>>> > > db_hex2dec() at db_hex2dec+0x4d8
>>> > >          pc = 0xc0232780  lr = 0xc02320f0 (db_command_loop+0x2fc)
>>> > >          sp = 0xc08e5770  fp = 0xc08e5810
>>> > >          r4 = 0x00000000  r5 = 0x00000000
>>> > >          r6 = 0x00000063
>>> > > db_command_loop() at db_command_loop+0x2fc
>>> > >          pc = 0xc02320f0  lr = 0xc0231e54 (db_command_loop+0x60)
>>> > >          sp = 0xc08e5818  fp = 0xc08e5828
>>> > >          r4 = 0xc0528609  r5 = 0xc0540c1c
>>> > >          r6 = 0xc08ba1b0  r7 = 0xc08e5a48
>>> > >          r8 = 0x00000001  r9 = 0xc05d2918
>>> > >         r10 = 0xc0615aa4
>>> > > db_command_loop() at db_command_loop+0x60
>>> > >          pc = 0xc0231e54  lr = 0xc023481c (X_db_symbol_values+0x250)
>>> > >          sp = 0xc08e5830  fp = 0xc08e5950
>>> > >          r4 = 0x00000000  r5 = 0xc08ba1bc
>>> > >          r6 = 0xc0615ac8
>>> > > X_db_symbol_values() at X_db_symbol_values+0x250
>>> > >          pc = 0xc023481c  lr = 0xc0352c88 (kdb_trap+0x15c)
>>> > >          sp = 0xc08e5958  fp = 0xc08e5978
>>> > >          r4 = 0x00000000  r5 = 0x00000005
>>> > >          r6 = 0xc0615ac8  r7 = 0xc08e5a48
>>> > > kdb_trap() at kdb_trap+0x15c
>>> > >          pc = 0xc0352c88  lr = 0xc050138c (data_abort_handler+0x680)
>>> > >          sp = 0xc08e5980  fp = 0xc08e5998
>>> > >          r4 = 0xc08e5a48  r5 = 0x00000005
>>> > >          r6 = 0x600001d3  r7 = 0x00000000
>>> > >          r8 = 0x00000013  r9 = 0xc08e5a48
>>> > >         r10 = 0x00000001
>>> > > data_abort_handler() at data_abort_handler+0x680
>>> > >          pc = 0xc050138c  lr = 0xc0501134 (data_abort_handler+0x428)
>>> > >          sp = 0xc08e59a0  fp = 0xc08e5a40
>>> > >          r4 = 0xc08e5eb0  r5 = 0xc08ba870
>>> > >          r6 = 0xc08ba548  r7 = 0x00000005
>>> > > data_abort_handler() at data_abort_handler+0x428
>>> > >          pc = 0xc0501134  lr = 0xc04ed754 (exception_exit)
>>> > >          sp = 0xc08e5a48  fp = 0xc08e5ab0
>>> > >          r4 = 0xc3b49f00  r5 = 0xc3b4a080
>>> > >          r6 = 0xc3b4a0b8  r7 = 0x00000000
>>> > >          r8 = 0xc056b038  r9 = 0xc3ae1700
>>> > >         r10 = 0xc05d4930
>>> > > exception_exit() at exception_exit
>>> > >          pc = 0xc04ed754  lr = 0xc024e0f0 (mii_phy_flowstatus+0x2080)
>>> > >          sp = 0xc08e5a98  fp = 0xc08e5ab0
>>> > >          r0 = 0x00000000  r1 = 0xc0547c85
>>> > >          r2 = 0x00000072  r3 = 0x00000008
>>> > >          r4 = 0xc3b49f00  r5 = 0xc3b4a080
>>> > >          r6 = 0xc3b4a0b8  r7 = 0x00000000
>>> > >          r8 = 0xc056b038  r9 = 0xc3ae1700
>>> > >         r10 = 0xc05d4930 r12 = 0x00000000
>>> > > strcmp() at strcmp+0x4
>>> > >          pc = 0xc03d7604  lr = 0xc024e0f0 (mii_phy_flowstatus+0x2080)
>>> > >          sp = 0xc08e5a98  fp = 0xc08e5ab0
>>> > > Unwind failure (no registers changed)
>>> > >
>>
>>
>> > >
>> Please try without emac driver. MII in Cubietruck could be different.
>> > >
>>
>> > >
>> Ganbold
>>
>> > >
>>
>> > >
>>
>>
>>>
>>> > >
>>> > >
>>> > >
>>> > >
>>> > > > Message du 20/09/14 15:13
>>> > > > De : "Boris Astardzhiev"
>>> > > > A : "Gilles DALMAS"
>>> > > > Copie à : freebsd-arm at freebsd.org
>>> > > > Objet : Re: kernel debugger on cubietruck
>>> > > >
>>> > > >
>>> > > > Hi,
>>> > >
>>> > > > As far as I see strcmp() is passed a NULL pointer, try issuing a
>>> backtrace to get the exact place of calling.
>>> > >
>>> > > > Regards
>>> > >
>>> > >
>>> On Sep 20, 2014 4:11 PM, "Gilles DALMAS"  wrote:
>>> > >
>>> > > hi,
>>> > > >
>>> > > >
>>> > > >
>>> > > > I would compile freebsd for it run on a cubietruck. For this I
>>> used the wiki page: https://wiki.freebsd.org/FreeBSD/arm/Cubieboard
>>> using option confifuration "CUBIEBOARD2." everything goes well, but
>>> starting on the "truck", I get this message:
>>> > > >
>>> > > >
>>> > > >
>>> > > > vm_fault(0xc08bab80, 0, 1, 0) -> 1
>>> > > > Fatal kernel mode data abort: 'Translation Fault (S)'
>>> > > > trapframe: 0xc08e5a48
>>> > > > FSR=00000005, FAR=00000000, spsr=a00001d3
>>> > > > r0 =00000000, r1 =c0547c85, r2 =00000072, r3 =00000008
>>> > > > r4 =c3b49f00, r5 =c3b4a080, r6 =c3b4a0b8, r7 =00000000
>>> > > > r8 =c056b038, r9 =c3ae1700, r10=c05d4930, r11=c08e5ab0
>>> > > > r12=00000000, ssp=c08e5a98, slr=c024e0f0, pc =c03d7604
>>> > > >
>>> > > > [ thread pid 0 tid 100000 ]
>>> > > > Stopped at      strcmp+0x4:     ldrb    r3, [r0]
>>> > > >
>>> > > >
>>> > > >
>>> > > > where is the problem please ?
>>> > > >
>>> > > > _______________________________________________
>>> > > > freebsd-arm at freebsd.org mailing list
>>> > > > http://lists.freebsd.org/mailman/listinfo/freebsd-arm
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>>> freebsd-arm-unsubscribe at freebsd.org"
>>> > >
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>>>
>>
>> > >
>>
>>
> >
>
>

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