On Tue, 3 Aug 2021 15:14:27 + (UTC), Christophe Leroy wrote:
> When a DSI (Data Storage Interrupt) is taken while in NAP mode,
> r11 doesn't survive the call to power_save_ppc32_restore().
>
> So use r1 instead of r11 as they both contain the virtual stack
> pointer at that point.
Applied to
On Wed, 4 Aug 2021, Christophe Leroy wrote:
>
> This patch is related to the bisect you did that pointed to 4c0104a83fc3
> ("powerpc/32: Dismantle EXC_XFER_STD/LITE/TEMPLATE")
>
> I think maybe the starting point should be to (manually) apply the patch
> on top of that commit in order to
Excerpts from Christophe Leroy's message of August 4, 2021 11:28 pm:
>
>
> Le 04/08/2021 à 13:36, Nicholas Piggin a écrit :
>> Excerpts from Christophe Leroy's message of August 4, 2021 4:21 pm:
>>> Hi Nic,
>>>
>>> I think I'll need your help on that one.
>>>
>>> Le 04/08/2021 à 08:07,
Le 04/08/2021 à 13:36, Nicholas Piggin a écrit :
Excerpts from Christophe Leroy's message of August 4, 2021 4:21 pm:
Hi Nic,
I think I'll need your help on that one.
Le 04/08/2021 à 08:07, Christophe Leroy a écrit :
Le 04/08/2021 à 06:04, Finn Thain a écrit :
Hi Finn!
On Tue, 3 Aug
Excerpts from Christophe Leroy's message of August 4, 2021 4:21 pm:
> Hi Nic,
>
> I think I'll need your help on that one.
>
> Le 04/08/2021 à 08:07, Christophe Leroy a écrit :
>>
>>
>> Le 04/08/2021 à 06:04, Finn Thain a écrit :
Hi Finn!
>>> On Tue, 3 Aug 2021, Christophe Leroy wrote:
>>>
>
Hi Nic,
I think I'll need your help on that one.
Le 04/08/2021 à 08:07, Christophe Leroy a écrit :
Le 04/08/2021 à 06:04, Finn Thain a écrit :
On Tue, 3 Aug 2021, Christophe Leroy wrote:
...
[ cut here ]
kernel BUG at arch/powerpc/kernel/interrupt.c:49!
Oops:
Le 04/08/2021 à 06:04, Finn Thain a écrit :
On Tue, 3 Aug 2021, Christophe Leroy wrote:
When a DSI (Data Storage Interrupt) is taken while in NAP mode, r11
doesn't survive the call to power_save_ppc32_restore().
So use r1 instead of r11 as they both contain the virtual stack pointer
at
On Tue, 3 Aug 2021, Christophe Leroy wrote:
> When a DSI (Data Storage Interrupt) is taken while in NAP mode, r11
> doesn't survive the call to power_save_ppc32_restore().
>
> So use r1 instead of r11 as they both contain the virtual stack pointer
> at that point.
>
> Reported-by: Finn Thain
When a DSI (Data Storage Interrupt) is taken while in NAP mode,
r11 doesn't survive the call to power_save_ppc32_restore().
So use r1 instead of r11 as they both contain the virtual stack
pointer at that point.
Reported-by: Finn Thain
Fixes: 4c0104a83fc3 ("powerpc/32: Dismantle
