On 2/19/19 7:33 PM, Kostya Serebryany wrote: >>> Well, I am using clang 8.0 on arm64 and running the kernel just fine for a few >>> weeks now and never trigger a single stack overflow (THREAD_SHIFT = 15) because >>> I never use any of those drivers you mentioned above. I don't think it is a good >>> idea to blankly remove the testing coverage here and affect people don't use all >>> those offensive functions at all. >> >> Thanks for the patch, Arnd! Hopefully we can fix that up in Clang >> soon. Qian, I guess the alternative would be to add `-mllvm >> -asan-stack=0` on potentially up to 140 Makefiles? Depends on the exact stack consumption of those 140 functions. For example, I don't care if you turn-off -asan-stack if the current stack size is < 32k. For those functions always consume like a lot of stack like 8k or more, fix them in Makefile if not too many of them.
