ppc64: dont attempt a traceback table lookup for userspace addresses

89fd5072 · Anton Blanchard · Todd Inglett · f92e3618 · 89fd5072
Commit 89fd5072 authored Feb 14, 2003 by Anton Blanchard Committed by Todd Inglett Feb 14, 2003
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arch/ppc64/xmon/xmon.c arch/ppc64/xmon/xmon.c +4 -0

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--- a/arch/ppc64/xmon/xmon.c
+++ b/arch/ppc64/xmon/xmon.c
@@ -2072,6 +2072,10 @@ find_tb_table(unsigned long codeaddr, struct tbtable *tab)
 	int instr;
 	int num_parms;

+	/* dont look for traceback table in userspace */
+	if (codeaddr < PAGE_OFFSET)
+		return 0;
+
 	if (tab == NULL)
 		return 0;
 	memset(tab, 0, sizeof(tab));