Re: [PATCH v4 9/9] kasan: rework Kconfig settings

2017-09-26 Thread Andrey Ryabinin
On 09/23/2017 12:29 AM, Arnd Bergmann wrote: > 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/gpu/drm/i915/gvt/handlers.c:2407:1:

[PATCH v4 9/9] kasan: rework Kconfig settings

2017-09-22 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/gpu/drm/i915/gvt/handlers.c:2407:1: error: the frame size of 31216 bytes is larger than