Re: [PATCH v2 3/4] powerpc/mm: fix a warning when a cache is common to PGD and hugepages

From: Michael Ellerman
Date: Fri Aug 24 2018 - 01:44:52 EST


Segher Boessenkool <segher@xxxxxxxxxxxxxxxxxxx> writes:

> On Thu, Aug 23, 2018 at 11:32:16PM +1000, Andrew Donnellan wrote:
>> On 23/08/18 21:56, Michael Ellerman wrote:
>> >Christophe LEROY <christophe.leroy@xxxxxx> writes:
>> >
>> >>Le 23/08/2018 Ã 12:36, Segher Boessenkool a ÃcritÂ:
>> >>>On Thu, Aug 23, 2018 at 11:40:22AM +0200, Christophe LEROY wrote:
>> >>>>The only small problÃme I have is that some version of GCC seems to
>> >>>>complain about big memset() (132k and 256k ones). Is there a way to tell
>> >>>>GCC we really want to do it ?
>> >>>
>> >>>I'm not sure what you mean. Complain, is that a warning, is that an
>> >>>error?
>> >>>What does it say? Do you have some example code to reproduce it? Etc.
>> >>
>> >>I saw the warnings in the checks at
>> >>https://patchwork.ozlabs.org/patch/957566/
>> >>Unfortunatly the link is now broken.
>> >
>> >ruscur/ajd any idea what happened to the snowpatch links here?
>>
>> I think they've disappeared because our log rotation is too fast - I've
>> now upped it to 30 days. I guess over time we'll figure out what we need
>> in this regard, ideally we'd keep logs indefinitely but they're several
>> megs per build.
>>
>> I've kicked off another build for this series and the links in Patchwork
>> should update to point to the new job when it's done (probably in the
>> next couple of hours).
>
> It's back, thanks Andrew!
>
> The warnings are not from GCC at all: the warnings are from sparse.

We really need to split them out so it's less confusing.

cheers