From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754025Ab3LSOCz (ORCPT ); Thu, 19 Dec 2013 09:02:55 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:41801 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753796Ab3LSOCx (ORCPT ); Thu, 19 Dec 2013 09:02:53 -0500 Message-ID: <52B2FC66.9010309@oracle.com> Date: Thu, 19 Dec 2013 09:02:14 -0500 From: Sasha Levin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Peter Zijlstra CC: Ingo Molnar , LKML Subject: Re: lockdep: BUG: MAX_LOCKDEP_ENTRIES too low! References: <52B289F4.7060205@oracle.com> <20131219103401.GE30183@twins.programming.kicks-ass.net> In-Reply-To: <20131219103401.GE30183@twins.programming.kicks-ass.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: acsinet21.oracle.com [141.146.126.237] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/19/2013 05:34 AM, Peter Zijlstra wrote: > On Thu, Dec 19, 2013 at 12:53:56AM -0500, Sasha Levin wrote: >> Hi all, >> >> I think that my bloated kernel managed to create way too many entries in the >> dependency table. If that sounds right, I can send a patch to increase those. >> >> Attached /proc/lock_stat as requested as well. > > /proc/lockdep_stats not lock_stat :-) > > Do you still happen to have that? Is the BUG message intentional ("Please attach the output of /proc/lock_stat to the bug report")? Here's /proc/lockdep_stats: lock-classes: 2397 [max: 8191] direct dependencies: 16384 [max: 16384] indirect dependencies: 60481 all direct dependencies: 308079 dependency chains: 21162 [max: 32768] dependency chain hlocks: 67298 [max: 163840] in-hardirq chains: 51 in-softirq chains: 430 in-process chains: 19782 stack-trace entries: 235133 [max: 262144] combined max dependencies: 443376596 hardirq-safe locks: 59 hardirq-unsafe locks: 1285 softirq-safe locks: 156 softirq-unsafe locks: 1136 irq-safe locks: 168 irq-unsafe locks: 1285 hardirq-read-safe locks: 4 hardirq-read-unsafe locks: 357 softirq-read-safe locks: 7 softirq-read-unsafe locks: 337 irq-read-safe locks: 8 irq-read-unsafe locks: 357 uncategorized locks: 281 unused locks: 0 max locking depth: 12 max bfs queue depth: 663 chain lookup misses: 21432 chain lookup hits: 490237032 cyclic checks: 20219 find-mask forwards checks: 12353 find-mask backwards checks: 128734 hardirq on events: 372837372 hardirq off events: 372837362 redundant hardirq ons: 3467 redundant hardirq offs: 361517382 softirq on events: 3688513 softirq off events: 3688541 redundant softirq ons: 0 redundant softirq offs: 0 debug_locks: 0 Thanks, Sasha