[PATCH] um: Re-enable verbose panic()

From	Richard Weinberger <richard@nod.at>
Newsgroups	linux.kernel
Subject	[PATCH] um: Re-enable verbose panic()
Date	2017-07-12 23:00 +0200
Message-ID	<u2wTM-4E4-9@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Commit 9a93848fe787 ("x86/debug: Implement __WARN() using UD0")
rightfully removed GENERIC_BUG from UML because UML didn't use
that feature.
A side effect of this is that DEBUG_BUGVERBOSE no longer
set and therefore panic() doesn't print a stack trace.

Let's select DEBUG_BUGVERBOSE manually to have a verbose panic()
again.

Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/Kconfig.common | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 85f6dd204ab6..3cb6cd80ee4c 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -13,6 +13,8 @@ config UML
 	select GENERIC_CLOCKEVENTS
 	select HAVE_GCC_PLUGINS
 	select TTY # Needed for line.c
+	select HAVE_DEBUG_BUGVERBOSE
+	select DEBUG_BUGVERBOSE
 
 config MMU
 	bool
-- 
2.12.3

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[PATCH] um: Re-enable verbose panic() Richard Weinberger <richard@nod.at> - 2017-07-12 23:00 +0200
  Re: [PATCH] um: Re-enable verbose panic() kbuild test robot <lkp@intel.com> - 2017-07-13 10:20 +0200

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