Re: [PATCH 26/26] kasan: rework Kconfig settings

2017-03-03 Thread Andrey Ryabinin
On 03/02/2017 07:38 PM, Arnd Bergmann wrote: > > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index 97d62c2da6c2..27c838c40a36 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -216,10 +216,9 @@ config ENABLE_MUST_CHECK > config FRAME_WARN > int "Warn for stack fram

Re: [PATCH 26/26] kasan: rework Kconfig settings

2017-03-03 Thread Arnd Bergmann
On Fri, Mar 3, 2017 at 3:51 PM, Andrey Ryabinin wrote: > > > On 03/02/2017 07:38 PM, Arnd Bergmann wrote: > >> >> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug >> index 97d62c2da6c2..27c838c40a36 100644 >> --- a/lib/Kconfig.debug >> +++ b/lib/Kconfig.debug >> @@ -216,10 +216,9 @@ config ENABL

[PATCH 26/26] kasan: rework Kconfig settings

2017-03-02 Thread Arnd Bergmann
We get a lot of very large stack frames using gcc-7.0.1 with the default -fsanitize-address-use-after-scope --param asan-stack=1 options, which can easily cause an overflow of the kernel stack, e.g. drivers/acpi/nfit/core.c:2686:1: warning: the frame size of 4080 bytes is larger than 2048 bytes [