Re: Build error in 3.18.y-stable-queue (s390)

[Sasha Levin <sasha.levin@oracle.com>]

Thanks for the report Guenter!

On 03/23/2016 12:21 AM, Guenter Roeck wrote:
> On 03/22/2016 08:42 PM, Guenter Roeck wrote:
>> Hi Sasha,
>>
>> s390 builds in v3.18.y-stable-queue fail as follows.
>>
>> ./arch/s390/include/asm/mmu_context.h: In function 'init_new_context':
>> ./arch/s390/include/asm/mmu_context.h:33:3: error: implicit declaration of function 'mm_inc_nr_pmds'
>>
>> Culprit appears to be 's390/mm: four page table levels vs. fork'. It uses mm_inc_nr_pmds(),
>> which does not exist in v3.18.

Should be fixed, I backported "mm: account pmd page tables to the process" as well.

>> I noticed that arm64:allmodconfig builds fail as well, but that is not a new problem and
>> only seen with gcc 5.2 (or at least not with gcc 4.9.1). I'll see if I can track this down.
>>
> 
> Fixing the arm64 problem will require patch f5e0a12ca2d9 ("arm64: psci: move psci firmware
> calls out of line"). The patch doesn't apply cleanly; there is a minor conflict in the
> arm64 Makefile. Let me know if you need me to send a backport.

I've grabbed that commit.


Thanks,
Sasha