[sparc64] kernel OOPS with gcc 7.1 / 7.2

[Anatoly Pugachev]

On Wed, Aug 16, 2017 at 11:42 AM, Anatoly Pugachev <matorola at gmail.com> wrote:
> On Wed, Aug 16, 2017 at 7:30 AM, David Miller <davem at davemloft.net> wrote:
>> From: Anatoly Pugachev <matorola at gmail.com>
>> Date: Tue, 15 Aug 2017 21:50:45 +0300
>>
>>> Together with Dmitry (ldv) , we've discovered that running test suite
>>> from strace produces kernel OOPS, when kernel is compiled with gcc 7.1
>>> or with gcc 7.2 , but not with gcc 6 :
>>
>> Please try this patch:
>
> Dave,
>
> this patch fixes OOPS, thanks. Tested on ldom (gcc 7.2, git kernel +
> patch, git strace).
> Going to check with sun sparc v215 (sun4u), but it would take some
> time to compile patched kernel...

strace test suite run on v215 (sun4u), git kernel + patch
(4.13.0-rc5-00067-g510c8a899caf-dirty), debian sid gcc-7.1, git strace
passed without kernel OOPS.