lkml.org 
[lkml]   [2011]   [Apr]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/2] um: Fix call tracer and bug handler
Date
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.

Reported-by: Sergei Trofimovich <slyich@gmail.com>
Tested-by: Sergei Trofimovich <slyich@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
arch/um/include/asm/bug.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
create mode 100644 arch/um/include/asm/bug.h

diff --git a/arch/um/include/asm/bug.h b/arch/um/include/asm/bug.h
new file mode 100644
index 0000000..9e33b86
--- /dev/null
+++ b/arch/um/include/asm/bug.h
@@ -0,0 +1,6 @@
+#ifndef __UM_BUG_H
+#define __UM_BUG_H
+
+#include <asm-generic/bug.h>
+
+#endif
--
1.6.6.1


\
 
 \ /
  Last update: 2011-04-13 14:45    [W:0.029 / U:0.700 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site