kernel debugger on cubietruck

Sun Sep 21 04:28:40 UTC 2014

On Sun, Sep 21, 2014 at 2:45 AM, Gilles DALMAS <gdalmas at wanadoo.fr> wrote:

> when I try to put "ufs: / dev / da0", the system starts but I have a lot
> of "no such device" and "spurious interrupt detected"
>

For now, you can comment out "Spurious interrupt detected" in
http://svnweb.freebsd.org/base/head/sys/arm/arm/gic.c?revision=271630&view=markup#l364
and rebuild the kernel again and try.

I didn't find yet the solution for it.

Ganbold

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> > Message du 20/09/14 16:35
> > De : "Ganbold Tsagaankhuu" <ganbold at gmail.com>
> > A : "Gilles DALMAS" <gdalmas at wanadoo.fr>
> > Copie à :
> > Objet : Re: kernel debugger on cubietruck
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> On Sat, Sep 20, 2014 at 10:31 PM, Gilles DALMAS <gdalmas at wanadoo.fr>
> wrote:
> >
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>> > no need to re make the kernel-toolchain ?
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> No just build kernel only.
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> >
> Ganbold
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>> > Message du 20/09/14 16:26
>> > > De : "Gilles DALMAS" <gdalmas at wanadoo.fr>
>> > > A : "Ganbold Tsagaankhuu" <ganbold at gmail.com>
>> > > Copie à : "freebsd-arm at freebsd.org" <freebsd-arm at freebsd.org>
>> > > Objet : Re: kernel debugger on cubietruck
>> > >
>> > > 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 ?     no need to
>> re created the sd card ? just the USB flash ?   > Message du 20/09/14 16:09
>> > De : "Ganbold Tsagaankhuu" > A : "Gilles DALMAS" > Copie à : "
>> freebsd-arm at freebsd.org" > Objet : Re: kernel debugger on cubietruck > >
>> > > On Sat, Sep 20, 2014 at 9:25 PM, Gilles DALMAS 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 ? > > > > _______________________________________________ > >
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