The patch titled
um: fix call tracer and bug handler
has been added to the -mm tree. Its filename is
um-fix-call-tracer-and-bug-handler.patch
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------------------------------------------------------
Subject: um: fix call tracer and bug handler
From: Richard Weinberger <richard@xxxxxx>
Commit 1de1502c (x86, um: now we can get rid of trivial uml headers)
removed accidentally bug.h which broke UML's call tracer and bug handler.
Without asm-generic/bug.h UML uses BUG() from arch/x86/ which makes use of
ud2. UML cannot use ud2, it raises SIGILL in user mode. As UML has a
different stack for handling signals the call trace will be cut off.
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Reported-by: Sergei Trofimovich <slyich@xxxxxxxxx>
Tested-by: Sergei Trofimovich <slyich@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/um/include/asm/bug.h | 6 ++++++
1 file changed, 6 insertions(+)
diff -puN /dev/null arch/um/include/asm/bug.h
--- /dev/null
+++ a/arch/um/include/asm/bug.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BUG_H
+#define __UM_BUG_H
+
+#include <asm-generic/bug.h>
+
+#endif
_
Patches currently in -mm which might be from richard@xxxxxx are
um-fix-call-tracer-and-bug-handler.patch
um-disable-config_cmpxchg_local.patch
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