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* [PATCH v2] x86/stacktrace: update kconfig help text for reliable unwinders
@ 2019-11-07  3:29 Joe Lawrence
  2019-11-07  3:34 ` Josh Poimboeuf
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Joe Lawrence @ 2019-11-07  3:29 UTC (permalink / raw)
  To: linux-kernel, live-patching; +Cc: Josh Poimboeuf

commit 6415b38bae26 ("x86/stacktrace: Enable HAVE_RELIABLE_STACKTRACE
for the ORC unwinder") added the ORC unwinder as a "reliable" unwinder.
Update the help text to reflect that change: the frame pointer unwinder
is no longer the only one that can provide HAVE_RELIABLE_STACKTRACE.

Signed-off-by: Joe Lawrence <>

v2: dropped hunk that added unnecessary text to UNWIND_GUESS

 arch/x86/Kconfig.debug | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index bf9cd83de777..409c00f74e60 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -316,10 +316,6 @@ config UNWINDER_FRAME_POINTER
 	  unwinder, but the kernel text size will grow by ~3% and the kernel's
 	  overall performance will degrade by roughly 5-10%.
-	  This option is recommended if you want to use the livepatch
-	  consistency model, as this is currently the only way to get a
-	  reliable stack trace (CONFIG_HAVE_RELIABLE_STACKTRACE).
 	bool "Guess unwinder"
 	depends on EXPERT

^ permalink raw reply	[flat|nested] 5+ messages in thread

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Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2019-11-07  3:29 [PATCH v2] x86/stacktrace: update kconfig help text for reliable unwinders Joe Lawrence
2019-11-07  3:34 ` Josh Poimboeuf
2019-11-07 14:54   ` Petr Mladek
2019-11-07  8:44 ` Miroslav Benes
2019-11-07 12:23 ` Kamalesh Babulal

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