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-rw-r--r--kernel/sched/Makefile7
1 files changed, 3 insertions, 4 deletions
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index c7421f2d05e1..c83b37af155b 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -11,11 +11,10 @@ ccflags-y += $(call cc-disable-warning, unused-but-set-variable)
# that is not a function of syscall inputs. E.g. involuntary context switches.
KCOV_INSTRUMENT := n
-# There are numerous data races here, however, most of them are due to plain accesses.
-# This would make it even harder for syzbot to find reproducers, because these
-# bugs trigger without specific input. Disable by default, but should re-enable
-# eventually.
+# Disable KCSAN to avoid excessive noise and performance degradation. To avoid
+# false positives ensure barriers implied by sched functions are instrumented.
KCSAN_SANITIZE := n
+KCSAN_INSTRUMENT_BARRIERS := y
ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
# According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is