On Wed, Mar 22, 2017 at 3:37 PM, Catalin Marinas <catalin.mari...@arm.com> wrote: > Hi Arnd, > > On Tue, Mar 14, 2017 at 10:39:21PM +0100, Arnd Bergmann wrote: >> This mirrors commit e9c38ceba8d9 ("ARM: 8455/1: define __BUG as >> asm(BUG_INSTR) without CONFIG_BUG") to make the behavior of >> arm64 consistent with arm and x86, and avoids lots of warnings in >> randconfig builds, such as: >> >> kernel/seccomp.c: In function '__seccomp_filter': >> kernel/seccomp.c:666:1: error: no return statement in function returning >> non-void [-Werror=return-type] >> >> Signed-off-by: Arnd Bergmann <a...@arndb.de> > > A side-effect of this patch is that it turns WARN into BUG. I hit the > WARN_ONCE in arch/arm64/kernel/efi.c:34 (on Juno with 64K pages) and > with your patch applied, the kernel panics.
Taht was certainly not intended, and I don't see yet what exactly is going on. What is your setting for CONFIG_BUG and CONFIG_BUGVERBOSE? Arnd