From: Andi Kleen <ak@suse.de>
Date: Tue, 26 Sep 2006 08:52:28 +0000 (+0200)
Subject: [PATCH] Document backtracer selection options
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=538b5b419c7ae39a4b2deb15278da36102e42346;p=linux-beck.git

[PATCH] Document backtracer selection options

Signed-off-by: Andi Kleen <ak@suse.de>
---

diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 6da24e7a56cb..4303e0c12476 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -245,6 +245,13 @@ Debugging
 		newfallback: use new unwinder but fall back to old if it gets
 			stuck (default)
 
+  call_trace=[old|both|newfallback|new]
+		old: use old inexact backtracer
+		new: use new exact dwarf2 unwinder
+ 		both: print entries from both
+		newfallback: use new unwinder but fall back to old if it gets
+			stuck (default)
+
 Misc
 
   noreplacement  Don't replace instructions with more appropriate ones