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authorAndi Kleen <ak@suse.de>2006-07-28 14:44:54 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-29 04:28:00 +0200
commitb783fd925cdd56d24d164e5bdcb072f2a67aedf4 (patch)
treee2585d3a2f560eb5a313c92d0cd91df92358b1b6 /Documentation/x86_64
parent[PATCH] x86_64: Dump leftover backtrace entries when dwarf2 unwinder got stuck (diff)
downloadlinux-b783fd925cdd56d24d164e5bdcb072f2a67aedf4.tar.xz
linux-b783fd925cdd56d24d164e5bdcb072f2a67aedf4.zip
[PATCH] x86_64: Document backtracer selection options
Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/x86_64')
-rw-r--r--Documentation/x86_64/boot-options.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/x86_64/boot-options.txt b/Documentation/x86_64/boot-options.txt
index 6887d44d2661..6da24e7a56cb 100644
--- a/Documentation/x86_64/boot-options.txt
+++ b/Documentation/x86_64/boot-options.txt
@@ -238,6 +238,13 @@ Debugging
pagefaulttrace Dump all page faults. Only useful for extreme debugging
and will create a lot of output.
+ 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