Re: [syzbot] [kernel?] WARNING in futex_pivot_pending

[Edward Adam Davis]

#syz test

diff --git a/kernel/futex/core.c b/kernel/futex/core.c
index 128c5752f225..154140fb6081 100644
--- a/kernel/futex/core.c
+++ b/kernel/futex/core.c
@@ -1786,6 +1786,7 @@ static bool futex_pivot_pending(struct mm_struct *mm)
 	struct futex_mm_phash *mmph = &mm->futex.phash;
 	struct futex_private_hash *fph;
 
+	sched_annotate_sleep();
 	guard(mutex)(&mmph->lock);
 
 	if (!mmph->hash_new)