Re: [Qemu-ppc] Booting AIX on qemu-system-ppc, kernel not started successfully

[Alexander Graf]

On 23.02.2012, at 09:01, Liang Guo wrote:

> On Thu, Feb 23, 2012 at 3:35 PM, Alexander Graf <address@hidden> wrote:
>> 
>> On 23.02.2012, at 08:32, Liang Guo wrote:
>> 
>>> On Thu, Feb 23, 2012 at 3:14 PM, Alexander Graf <address@hidden> wrote:
>>>> 
>>>> On 23.02.2012, at 08:13, Liang Guo wrote:
>>>> 
>>>>> On Thu, Feb 23, 2012 at 2:26 PM, Alexander Graf <address@hidden> wrote:
>>>>>> 
>>>>>> It looks like the disassembler in gdb is configured for something odd, 
>>>>>> yeah. POWER1 maybe.
>>>>>> 
>>>>>> Try to run "log in_asm,cpu,int" on the qemu monitor right at the AIX 
>>>>>> entry point. The disassembly log should be in /tmp/qemu.log then.
>>>>>> 
>>>>>> Alternatively, you can of course try to use a gdb that works ;).
>>>>>> 
>>>>>> Alex
>>>>> 
>>>>> Too more information generated with log in_asm,cpu,int. the qemu.log is
>>>>> attached, hope it is useful. but the asm code is buggy too.
>>>> 
>>>> Hrm, I don't see the CPU states and interrupt information in here. Mind to 
>>>> post the complete log somewhere? At http://paste.debian.net for example :)
>>>> 
>>>> 
>>>> Alex
>>>> 
>>> 
>>> it is too large, more than 1G, the log may interruppted, for my /tmp
>>> is full, I'll generated it asap
>>> and upload it to somewhere
>> 
>> Well, we're only interested in the first few hundred lines. After that it's 
>> stuck in an endless loop and just prints out its cpu state needlessly. Just 
>> cut it off after a few iterations of:
>> 
>>  0x000000000000004c:  blt+    0x40
>> 
>> 
>> Alex
>> 
> This is the log between 0x3c with several loop between  0x40 and 0x48
> http://paste.debian.net/157274/,
> 
> the most part of the log is between 0x2c and 0x38, it is about 1.6G

I was actually rather thinking of doing the log from AIX entry point until the 
part where you cut it off at the end.

So here, r16 is 0, but the code isn't expecting it to be 0. Try to find out why 
r16 is 0 and you will know why the loop doesn't end ;)


Alex