KMSAN doesn't currently support UNWINDER_ORC, causing the kernel to freeze at boot time. See http://github.com/google/kmsan/issues/48. Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> Cc: Qian Cai <cai@xxxxxx> Cc: Christoph Hellwig <hch@xxxxxx> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Cc: Harry Wentland <harry.wentland@xxxxxxx> Cc: Vegard Nossum <vegard.nossum@xxxxxxxxxx> Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> Cc: linux-mm@xxxxxxxxx --- This patch is part of "kmsan: Kconfig changes to disable options incompatible with KMSAN", which was split into smaller pieces. Change-Id: I9cb6ebbaeb9a38e9e1d015c68ab77d40420a7ad0 --- arch/x86/Kconfig.debug | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index bf9cd83de777..db3cd6147829 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -292,6 +292,9 @@ choice config UNWINDER_ORC bool "ORC unwinder" depends on X86_64 + # KMSAN doesn't support UNWINDER_ORC yet, + # see https://github.com/google/kmsan/issues/48. + depends on !KMSAN select STACK_VALIDATION ---help--- This option enables the ORC (Oops Rewind Capability) unwinder for -- 2.24.0.432.g9d3f5f5b63-goog
