Messages in this thread | | | Date | Fri, 16 Dec 2022 17:08:41 +0100 | Subject | Re: [PATCH] crypto: wp512: disable kmsan checks in wp512_process_buffer() | From | Alexander Potapenko <> |
| |
> The memory sanitizer causes excessive register spills in this function:
> crypto/wp512.c:782:13: error: stack frame size (2104) exceeds limit (2048) in 'wp512_process_buffer' [-Werror,-Wframe-larger-than]
> Assume that this one is safe, and mark it as needing no checks to > get the stack usage back down to the normal level.
KMSAN indeed bloats the stack frames heavily. Wouldn't it be more preferable to further increase KMSAN's -Wframe-larger-than limit instead? It is not intended for production anyway, and detecting a runtime stack overflow in the debug mode should not be a problem.
| |