* Re: MPC8321 boot failure
[not found] ` <0cbfec90-0e58-e267-71ae-c5fc8a8e0640@c-s.fr>
@ 2018-10-18 4:49 ` Christophe LEROY
[not found] ` <CY1PR10MB0204796CBD711EBA4F5286A4EFF80@CY1PR10MB0204.namprd10.prod.outlook.com>
0 siblings, 1 reply; 2+ messages in thread
From: Christophe LEROY @ 2018-10-18 4:49 UTC (permalink / raw)
To: David Gounaris, linuxppc-dev@lists.ozlabs.org,
gregkh@linuxfoundation.org
Cc: Joakim Tjernlund, Mathias Thore, stable@vger.kernel.org
Hi,
I can now confirm that the boot failure is due to the absence of commit
8183d99f4a22 ("powerpc/lib/feature-fixups: use raw_patch_instruction()")
Greg, could you please apply that patch to 4.14 stable ?
Thanks
Christophe
Le 17/10/2018 � 18:36, Christophe LEROY a �crit�:
> Hi,
>
> Yes I discovered the same issue today on MPC8321E, I plan to look at it
> more closely tomorrow morning (Paris Time).
>
> I think we are missing commit 8183d99f4a22c2abbc543847a588df3666ef0c0c ,
> I didn't realise it when we applied the serie to 4.14,
> patch_instruction() is called too early without that patch.
>
> If you have opportunity to test now, you are welcome, otherwise I'll
> test it tomorrow.
>
> Christophe
>
> Le 17/10/2018 � 17:18, David Gounaris a �crit�:
>> Hello, I got into troubles when I upgraded to Linux kernel 4.14.76 on
>> boards with MPC8321.
>>
>>
>> The symptom that I see is that the boot process gets cyclic, and no
>> printouts are seen from the Linux kernel. It�seems like it resets.
>>
>>
>> When I revert the following commits it works again.
>>
>> af1a8101794dfea897290e057f61086dabfe6c91, powerpc/lib: fix book3s/32
>> boot failure due to code patching
>> 609fbeddb24c4035d24fc32d82dc08b30ae3dfc0, powerpc: Avoid code patching
>> freed init sections
>>
>> Any ideas of how to continue?
>>
>> BR / David Gounaris
>>
>>
>>
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