Failure to boot G4: dt_headr_start=0x01501000

[Christophe Leroy]

On 05/23/2019 09:45 AM, Christophe Leroy wrote:
> 
> 
> Le 23/05/2019 à 10:53, Mathieu Malaterre a écrit :
>>> Commit id is:
>>>
>>> e93c9c99a629 (tag: v5.1) Linux 5.1
>>>
>>>> Did you try latest powerpc/merge branch ?
>>>
>>> Will try that next.
>>
>> I confirm powerpc/merge does not boot for me (same config). Commit id:
>>
>> a27eaa62326d (powerpc/merge) Automatic merge of branches 'master',
>> 'next' and 'fixes' into merge
> 
> I see in the config you sent me that you have selected CONFIG_KASAN, 
> which is a big new stuff.
> 
> Can you try without it ?

While building with your config, I get a huge amount of:

ppc-linux-ld: warning: orphan section `.data..LASANLOC10' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC10'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC11' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC11'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC12' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC12'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC13' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC13'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC14' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC14'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC15' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC15'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC16' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC16'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC1' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC1'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC2' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC2'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC3' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC3'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC4' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC4'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC5' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC5'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC6' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC6'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC7' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC7'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC8' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC8'.
ppc-linux-ld: warning: orphan section `.data..LASANLOC9' from 
`lib/vsprintf.o' being placed in section `.data..LASANLOC9'.
ppc-linux-ld: warning: orphan section `.data..LASAN0' from 
`lib/xarray.o' being placed in section `.data..LASAN0'.
   SORTEX  vmlinux



I see you have also selected CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y

I guess nobody have never tried both this and CONFIG_KASAN together on 
ppc32. I'll give it a try.

Christophe

> 
> Christophe
> 
>>
>>
>>>> Can you send your full .config ?
>>>
>>> Config is attached.
>>>
>>> Thanks,
>>>
>>>> Christophe
>>>>
>>>>>
>>>>> done
>>>>> Setting btext !
>>>>> W=640 H=488 LB=768 addr=0x9c008000
>>>>> copying OF device tree...
>>>>> starting device tree allocs at 01300000
>>>>> alloc_up(00100000, 0013d948)
>>>>>     trying: 0x01300000
>>>>>     trying: 0x01400000
>>>>>    -› 01400000
>>>>>     alloc_bottom : 01500000
>>>>>     alloc_top    : 20000000
>>>>>     alloc_top_hi : 20000000
>>>>>     nmo_top      : 20000000
>>>>>     ram_top      : 20000000
>>>>> Building dt strings...
>>>>> Building dt structure...
>>>>> reserved memory map:
>>>>>     00c40000 - 006c0000
>>>>> Device tree strings 0x01401000 -> 0x00000007
>>>>> Device tree struct 0x01402000 -> 0x00000007
>>>>> Quiescing Open Firmware ...
>>>>> Booting Linux via __start() @ 0x001400000
>>>>> ->dt_headr_start=0x01400000
>>>>>
>>>>> Thanks anyway,
>>>>>