* Re: MPC8321 boot failure
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@ 2018-10-17 16:36 ` Christophe LEROY
2018-10-18 4:49 ` Christophe LEROY
0 siblings, 1 reply; 3+ messages in thread
From: Christophe LEROY @ 2018-10-17 16:36 UTC (permalink / raw)
To: David Gounaris, linuxppc-dev@lists•ozlabs.org
Cc: gregkh@linuxfoundation•org, Mathias Thore
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 à 17:18, David Gounaris a écrit :
> 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
>
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: MPC8321 boot failure
2018-10-17 16:36 ` MPC8321 boot failure Christophe LEROY
@ 2018-10-18 4:49 ` Christophe LEROY
[not found] ` <CY1PR10MB0204796CBD711EBA4F5286A4EFF80@CY1PR10MB0204.namprd10.prod.outlook.com>
0 siblings, 1 reply; 3+ 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: stable@vger•kernel.org, Mathias Thore
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 à 18:36, Christophe LEROY a écrit :
> 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 à 17:18, David Gounaris a écrit :
>> 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
>>
>>
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: SV: MPC8321 boot failure
[not found] ` <CY1PR10MB0204796CBD711EBA4F5286A4EFF80@CY1PR10MB0204.namprd10.prod.outlook.com>
@ 2018-10-18 9:34 ` gregkh
0 siblings, 0 replies; 3+ messages in thread
From: gregkh @ 2018-10-18 9:34 UTC (permalink / raw)
To: David Gounaris
Cc: linuxppc-dev@lists•ozlabs.org, stable@vger•kernel.org,
Mathias Thore
On Thu, Oct 18, 2018 at 08:51:46AM +0000, David Gounaris wrote:
> Hi, I can also confirm that it works after cherry-picking the proposed commit.
>
> Reported-and-tested-by: David Gounaris <david.gounaris@infinera.com<mailto:David.Gounaris@infinera•com>>
>
Now queued up, thanks.
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-10-17 16:36 ` MPC8321 boot failure Christophe LEROY
2018-10-18 4:49 ` Christophe LEROY
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2018-10-18 9:34 ` SV: " gregkh
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