Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752016AbaB1TdA (ORCPT ); Fri, 28 Feb 2014 14:33:00 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:36997 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751715AbaB1Tc7 (ORCPT ); Fri, 28 Feb 2014 14:32:59 -0500 Message-ID: <5310E449.1050609@oracle.com> Date: Fri, 28 Feb 2014 14:32:25 -0500 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 MIME-Version: 1.0 To: Sasha Levin , peterz@infradead.org, mingo@redhat.com CC: linux-kernel@vger.kernel.org Subject: Re: [PATCH] lockdep: increase static allocations References: <1389208906-24338-1-git-send-email-sasha.levin@oracle.com> In-Reply-To: <1389208906-24338-1-git-send-email-sasha.levin@oracle.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: acsinet22.oracle.com [141.146.126.238] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/08/2014 02:21 PM, Sasha Levin wrote: > 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 > --- > 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[]; > Can someone pick the patch up please? PeterZ even (seemed to) acked it. Thanks, Sasha -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/