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: fac54e2 ("x86/Kconfig: Select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP") Reported-by: kernel test robot <[email protected]> Signed-off-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
josf · Mar 2, 2022 · eed1fce · eed1fce
1 parent 530e214
commit eed1fce
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
@@ -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