From e636c8d336489bf3eed5878299e6cc045bbad077 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:17:29 +0000
Subject: [PATCH] debug lk

---
 kernel/arch/powerpc/perf/callchain.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/arch/powerpc/perf/callchain.c b/kernel/arch/powerpc/perf/callchain.c
index 6c028ee..99f3c4f 100644
--- a/kernel/arch/powerpc/perf/callchain.c
+++ b/kernel/arch/powerpc/perf/callchain.c
@@ -61,6 +61,7 @@
 		next_sp = fp[0];
 
 		if (next_sp == sp + STACK_INT_FRAME_SIZE &&
+		    validate_sp(sp, current, STACK_INT_FRAME_SIZE) &&
 		    fp[STACK_FRAME_MARKER] == STACK_FRAME_REGS_MARKER) {
 			/*
 			 * This looks like an interrupt frame for an

--
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