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) <pet...@infradead.org>
Cc: Josh Poimboeuf <jpoim...@redhat.com>
Signed-off-by: Richard Weinberger <rich...@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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