Commit eed1fcee authored by Song Liu's avatar Song Liu Committed by Alexei Starovoitov
Browse files

x86: Disable HAVE_ARCH_HUGE_VMALLOC on 32-bit x86 



kernel test robot reported kernel BUG like:

[ 44.587744][ T1] kernel BUG at arch/x86/mm/physaddr.c:76!
[ 44.590151][ T1] __vmalloc_area_node (mm/vmalloc.c:622 mm/vmalloc.c:2995)
[ 44.590151][ T1] __vmalloc_node_range (mm/vmalloc.c:3108)
[ 44.590151][ T1] __vmalloc_node (mm/vmalloc.c:3157)

which is triggered with HAVE_ARCH_HUGE_VMALLOC on 32-bit x86. Since BPF
only uses HAVE_ARCH_HUGE_VMALLOC for x86_64, turn it off for 32-bit x86.

Fixes: fac54e2b ("x86/Kconfig: Select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP")
Reported-by: default avatarkernel test robot <oliver.sang@intel.com>
Signed-off-by: default avatarSong Liu <song@kernel.org>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarYonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220302175126.247459-2-song@kernel.org
parent 530e214c

arch/x86/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -158,7 +158,7 @@ config X86 
	select HAVE_ALIGNED_STRUCT_PAGE		if SLUB

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_ARCH_HUGE_VMAP		if X86_64 || X86_PAE

	select HAVE_ARCH_HUGE_VMALLOC		if HAVE_ARCH_HUGE_VMAP

	select HAVE_ARCH_HUGE_VMALLOC		if X86_64

	select HAVE_ARCH_JUMP_LABEL

	select HAVE_ARCH_JUMP_LABEL_RELATIVE

	select HAVE_ARCH_KASAN			if X86_64