[PATCH v3 0/4] powerpc: watchdog fixes

Laurent Dufour ldufour at linux.ibm.com
Fri Nov 26 04:20:56 AEDT 2021


On 25/11/2021, 16:26:33, Michal Suchánek wrote:
> Hello,
> 
> On Thu, Nov 25, 2021 at 04:11:03PM +0100, Laurent Dufour wrote:
>> On 25/11/2021, 10:36:43, Michael Ellerman wrote:
>>> On Wed, 10 Nov 2021 12:50:52 +1000, Nicholas Piggin wrote:
>>>> These are some watchdog fixes and improvements, in particular a
>>>> deadlock between the wd_smp_lock and console lock when the watchdog
>>>> fires, found by Laurent.
>>>>
>>>> Thanks,
>>>> Nick
>>>>
>>>> [...]
>>>
>>> Applied to powerpc/next.
>>>
>>> [1/4] powerpc/watchdog: Fix missed watchdog reset due to memory ordering race
>>>       https://git.kernel.org/powerpc/c/5dad4ba68a2483fc80d70b9dc90bbe16e1f27263
>>> [2/4] powerpc/watchdog: tighten non-atomic read-modify-write access
>>>       https://git.kernel.org/powerpc/c/858c93c31504ac1507084493d7eafbe7e2302dc2
>>> [3/4] powerpc/watchdog: Avoid holding wd_smp_lock over printk and smp_send_nmi_ipi
>>>       https://git.kernel.org/powerpc/c/76521c4b0291ad25723638ade5a0ff4d5f659771
>>> [4/4] powerpc/watchdog: read TB close to where it is used
>>>       https://git.kernel.org/powerpc/c/1f01bf90765fa5f88fbae452c131c1edf5cda7ba
>>>
>>> cheers
>>>
>>
>> Hi Michael,
>>
>> This series has been superseded by this series (v4)
>> http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=272865
>>
>> Do you plan to apply that v4?
> 
> It has been fixed up in
> 
> https://lore.kernel.org/linuxppc-dev/20211125103346.1188958-1-npiggin@gmail.com/

Thanks Michal, I forgot that one.





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