Re: [grub-devel] loongson-2f mini-pc (fuloong) elf image generation.

[Javier Vasquez <j.e.vasquez.v@gmail.com>]

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On Sun, Nov 3, 2013 at 7:16 PM, Vladimir 'φ-coder/phcoder' Serbinenko
<phcoder@gmail.com> wrote:
> On 04.11.2013 02:10, Javier Vasquez wrote:
>> On 11/1/13, Vladimir 'φ-coder/phcoder' Serbinenko <phcoder@gmail.com> wrote:
>>> On 01.11.2013 22:26, Aleš Nesrsta wrote:
>>>>
>>>>
>>>> Dne 29.10.2013 19:46, Vladimir 'φ-coder/phcoder' Serbinenko napsal(a):
>>>>> On 29.10.2013 19:35, Aleš Nesrsta wrote:
>>>>>> Only short note below...
>>>>>>
>>>>>> Dne 27.10.2013 23:43, Vladimir 'φ-coder/phcoder' Serbinenko napsal(a):
>>>>>>> On 27.10.2013 21:03, Aleš Nesrsta wrote:
>>>>>>>>
>>>>>>>>
>>>>>>>> 2.
>>>>>>>> I don't see loading of OHCI module in debug output !
>>>>>>>> Do you really have this module included in your image?
>>>>>>> I have to second this: OHCI module if loaded and there is at least one
>>>>>>> PCI device available it will show "pciid = %x" message.
>>>>>>> Can you modify grub_real_dprintf in misc.c to:
>>>>>>> if (!debug)
>>>>>>>     debug = "all";
>>>>>>>
>>>>>>> So we can be sure that the message wasn't simply lost due to late
>>>>>>> setting of debug variable.
>>>>>>
>>>>>>
>>>>>> AFAIK, dl.c module should display for each loaded module something like
>>>>>> this (when debug=all as in Javier case):
>>>>>> "kern/dl.c:630: module name: ehci"
>>>>>> This is missing for OHCI module in debug output sent by Javier, even
>>>>>> grub.cfg command to load OHCI is present on the beginning of debug
>>>>>> output:
>>>>>> ...
>>>>>> script/lexer.c:321: token 288 text [insmod]
>>>>>>
>>>>>> script/script.c:50: malloc 0x8ff1d920
>>>>>>
>>>>>> script/script.c:50: malloc 0x8ff1d900
>>>>>>
>>>>>> script/script.c:163: arglist
>>>>>>
>>>>>> script/script.c:50: malloc 0x8ff1d8d0
>>>>>>
>>>>>> script/lexer.c:321: token 288 text [ohci]
>>>>>> ...
>>>>>>
>>>>>> I.e., from my point of view, it is sure that OHCI module was not loaded
>>>>>> - but there is no debug output which can explain why...
>>>>> It's possible that a module named ohci already loaded.
>>>> Hm. Originally I didn't believe it but you are right. Additionally, it
>>>> is probably the case of the second Javier dump - there is missing dl.c
>>>> message also for loading of EHCI module even it is working - so EHCI had
>>>> to be loaded before insmod command.
>>>>
>>>> Is it there some way how Javier can avoid it?
>>>> I.e., how to load USB drivers at the time when their debug output can be
>>>> captured - ? We need to see debug output of initialization of OHCI
>>>> controller and connected devices...
>>>>
>>> --disk-module=pata to grub-install.
>>>> BR, Ales
>>>>
>>>> _______________________________________________
>>>> Grub-devel mailing list
>>>> Grub-devel@gnu.org
>>>> https://lists.gnu.org/mailman/listinfo/grub-devel
>>>
>>>
>>>
>>
>> Hmm,
>>
>> The following just fails:
>>
>> % sudo grub-install --boot-directory=/boot --target=mipsel-loongson
>> --modules="ehci ohci usb_keyboard" --disk-module=pata --recheck
>> /dev/sda
>> /usr/bin/grub-mkimage: error: cannot open
>> `grub-core/kern/disk.c:196:.mod': No such file or directory.
>>
>> I just compiled/installed grub from git checksum
>> 323de05ba27594861c75eec0b39cb01049a023c9.
>>
>> I suppose I better wait, so that I can provide the right output dump.
>>
> When you do grub_dprintf change you have to do it like:
>   if (!debug)
> #ifdef GRUB_UTIL
>      return;
> #else
>      debug="all";
> #endif


I'll be sending the grub.cfg from the mini-pc later, but now I'm able
to see very little output through the serial interface.  Attached goes
this output.


-- 
Javier.

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Now booting the Boot with GNU GRUB2

Loading file: (wd0,0)/grub.elf (elf)

0x801ffb60/296284 \b + 

Entry address is 801ffb60

Boot with parameters: console=tty no_auto_cmd

   zero      at       v0       v1       a0       a1       a2       a3   

 00000000 00000000 00000000 00000000 00000006 aff7fcb8 aff7fcd4 800c7460

    t0       t1       t2       t3       t4       t5       t6       t7   

 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

    s0       s1       s2       s3       s4       s5       s6       s7   

 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000

    t8       t9       k0       k1       gp       sp       s8       ra   

 00000000 00000000 00000000 00000000 00000000 aff7fc98 00000000 80086c38