This is a note to let you know that I've just added the patch titled
lockdep, bug: Exclude TAINT_OOT_MODULE from disabling lock debugging
to the 3.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
lockdep-bug-exclude-taint_oot_module-from-disabling-lock-debugging.patch
and it can be found in the queue-3.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 9ec84acee1e221d99dc33237bff5e82839d10cc0 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <[email protected]>
Date: Wed, 7 Dec 2011 14:30:58 +0000
Subject: lockdep, bug: Exclude TAINT_OOT_MODULE from disabling lock debugging
From: Ben Hutchings <[email protected]>
commit 9ec84acee1e221d99dc33237bff5e82839d10cc0 upstream.
We do want to allow lock debugging for GPL-compatible modules
that are not (yet) built in-tree. This was disabled as a
side-effect of commit 2449b8ba0745327c5fa49a8d9acffe03b2eded69
('module,bug: Add TAINT_OOT_MODULE flag for modules not built
in-tree'). Lock debug warnings now include taint flags, so
kernel developers should still be able to deflect warnings
caused by out-of-tree modules.
The TAINT_PROPRIETARY_MODULE flag for non-GPL-compatible modules
will still disable lock debugging.
Signed-off-by: Ben Hutchings <[email protected]>
Cc: Nick Bowler <[email protected]>
Cc: Dave Jones <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Debian kernel maintainers <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Alan Cox <[email protected]>
Link: http://lkml.kernel.org/r/1323268258.18450.11.camel@deadeye
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/panic.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -237,11 +237,12 @@ void add_taint(unsigned flag)
* Can't trust the integrity of the kernel anymore.
* We don't call directly debug_locks_off() because the issue
* is not necessarily serious enough to set oops_in_progress to 1
- * Also we want to keep up lockdep for staging development and
- * post-warning case.
+ * Also we want to keep up lockdep for staging/out-of-tree
+ * development and post-warning case.
*/
switch (flag) {
case TAINT_CRAP:
+ case TAINT_OOT_MODULE:
case TAINT_WARN:
case TAINT_FIRMWARE_WORKAROUND:
break;
Patches currently in stable-queue which might be from [email protected] are
queue-3.2/lockdep-bug-exclude-taint_firmware_workaround-from-disabling-lockdep.patch
queue-3.2/lockdep-bug-exclude-taint_oot_module-from-disabling-lock-debugging.patch
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