From: Leon Romanovsky <leo...@nvidia.com> GCOV built with GCC 10 doesn't initialize n_function variable. This produces different kernel panics as was seen by Colin in Ubuntu [1] and me in FC 32 [2].
As a workaround, let's disable GCOV build for broken GCC 10 version. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891288 [2] https://lore.kernel.org/lkml/20200827133932.3338519-1-l...@kernel.org Cc: Colin Ian King <colin.k...@canonical.com> Signed-off-by: Leon Romanovsky <leo...@nvidia.com> --- As was discussed: https://lore.kernel.org/lkml/CAHk-=whbijesdsvx-xcr0dpmj0biwhj+uinndsvzcr_h_kg...@mail.gmail.com/ --- kernel/gcov/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig index 3110c77230c7..bb4b680e8455 100644 --- a/kernel/gcov/Kconfig +++ b/kernel/gcov/Kconfig @@ -4,6 +4,7 @@ menu "GCOV-based kernel profiling" config GCOV_KERNEL bool "Enable gcov-based kernel profiling" depends on DEBUG_FS + depends on !CC_IS_GCC || GCC_VERSION < 100000 select CONSTRUCTORS if !UML default n help -- 2.26.2
