Messages in this thread | | | Date | Wed, 22 Mar 2017 15:32:09 +0000 | From | Catalin Marinas <> | Subject | Re: [PATCH] [v2] arm64: define BUG() instruction without CONFIG_BUG |
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On Wed, Mar 22, 2017 at 03:51:54PM +0100, Arnd Bergmann wrote: > On Wed, Mar 22, 2017 at 3:37 PM, Catalin Marinas > <catalin.marinas@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 <arnd@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?
CONFIG_BUG=y CONFIG_DEBUG_BUGVERBOSE=y
(just defconfig + 64K pages)
-- Catalin
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