Commit-ID: 1413c03893332366e5b4d1e26f942ada25f3e82a
Gitweb: http://git.kernel.org/tip/1413c03893332366e5b4d1e26f942ada25f3e82a
Author: Sasha Levin <sasha.levin@xxxxxxxxxx>
AuthorDate: Wed, 8 Jan 2014 14:21:46 -0500
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Fri, 18 Apr 2014 14:20:50 +0200
lockdep: Increase static allocations
Fuzzing a recent kernel with a large configuration hits the static
allocation limits and disables lockdep.
This patch doubles the limits.
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1389208906-24338-1-git-send-email-sasha.levin@xxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/locking/lockdep_internals.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/locking/lockdep_internals.h b/kernel/locking/lockdep_internals.h
index 4f560cf..51c4b24 100644
--- a/kernel/locking/lockdep_internals.h
+++ b/kernel/locking/lockdep_internals.h
@@ -54,9 +54,9 @@ enum {
* table (if it's not there yet), and we check it for lock order
* conflicts and deadlocks.
*/
-#define MAX_LOCKDEP_ENTRIES 16384UL
+#define MAX_LOCKDEP_ENTRIES 32768UL
-#define MAX_LOCKDEP_CHAINS_BITS 15
+#define MAX_LOCKDEP_CHAINS_BITS 16
#define MAX_LOCKDEP_CHAINS (1UL << MAX_LOCKDEP_CHAINS_BITS)
#define MAX_LOCKDEP_CHAIN_HLOCKS (MAX_LOCKDEP_CHAINS*5)
@@ -65,7 +65,7 @@ enum {
* Stack-trace: tightly packed array of stack backtrace
* addresses. Protected by the hash_lock.
*/
-#define MAX_STACK_TRACE_ENTRIES 262144UL
+#define MAX_STACK_TRACE_ENTRIES 524288UL
extern struct list_head all_lock_classes;
extern struct lock_chain lock_chains[];
--
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