The patch titled
Subject: lib: turn CONFIG_STACKTRACE into an actual option.
has been added to the -mm tree. Its filename is
lib-turn-config_stacktrace-into-an-actual-option.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/lib-turn-config_stacktrace-into-an-actual-option.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/lib-turn-config_stacktrace-into-an-actual-option.patch
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------------------------------------------------------
From: Dave Jones <davej@xxxxxxxxxx>
Subject: lib: turn CONFIG_STACKTRACE into an actual option.
I was puzzled why /proc/$$/stack had disappeared, until I figured out I
had disabled the last debug option that did a 'select STACKTRACE'. This
patch makes the option show up at config time, so it can be enabled
without enabling any of the more heavyweight debug options.
Signed-off-by: Dave Jones <davej@xxxxxxxxxx>
Acked-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.debug | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff -puN lib/Kconfig.debug~lib-turn-config_stacktrace-into-an-actual-option lib/Kconfig.debug
--- a/lib/Kconfig.debug~lib-turn-config_stacktrace-into-an-actual-option
+++ a/lib/Kconfig.debug
@@ -1008,8 +1008,13 @@ config TRACE_IRQFLAGS
either tracing or lock debugging.
config STACKTRACE
- bool
+ bool "Stack backtrace support"
depends on STACKTRACE_SUPPORT
+ help
+ This option causes the kernel to create a /proc/pid/stack for
+ every process, showing its current stack trace.
+ It is also used by various kernel debugging features that require
+ stack trace generation.
config DEBUG_KOBJECT
bool "kobject debugging"
_
Patches currently in -mm which might be from davej@xxxxxxxxxx are
origin.patch
lib-turn-config_stacktrace-into-an-actual-option.patch
linux-next.patch
mm-replace-remap_file_pages-syscall-with-emulation.patch
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