Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755068Ab1C3M1S (ORCPT ); Wed, 30 Mar 2011 08:27:18 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:39697 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750798Ab1C3M1R (ORCPT ); Wed, 30 Mar 2011 08:27:17 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=Fngr73ns+YJokGtFU9P6kJr/6GkW23QBtvRbWkmYeHAlTSgL0i+4J+OmVYSbRIR1d8 18gY3lh3kokHToYQU1lRxz0GY0+vip2rMnKiqN6+cL6L0CWlolJL0f9oWiFlku3lsTmw TE9biifWuqvDlrfJb0BEUA+arCMZqmVWRk1UE= Subject: Re: kmemleak for MIPS From: Eric Dumazet To: Maxin John Cc: Catalin Marinas , Daniel Baluta , naveen yadav , linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org In-Reply-To: References: <9bde694e1003020554p7c8ff3c2o4ae7cb5d501d1ab9@mail.gmail.com> <1300960540.32158.13.camel@e102109-lin.cambridge.arm.com> <1301395206.583.53.camel@e102109-lin.cambridge.arm.com> <1301399454.583.66.camel@e102109-lin.cambridge.arm.com> <1301476505.29074.47.camel@e102109-lin.cambridge.arm.com> <1301485085.29074.61.camel@e102109-lin.cambridge.arm.com> Content-Type: text/plain; charset="UTF-8" Date: Wed, 30 Mar 2011 14:27:12 +0200 Message-ID: <1301488032.3283.42.camel@edumazet-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2207 Lines: 68 Le mercredi 30 mars 2011 à 13:17 +0100, Maxin John a écrit : > A quick observation from dmesg after placing printks in > "net/ipv4/udp.c" for MIPS-malta > > CONFIG_BASE_SMALL : 0 > table->mask : 127 > UDP_HTABLE_SIZE_MIN : 256 > > dmesg: > .... > ... > TCP: Hash tables configured (established 8192 bind 8192) > TCP reno registered > CONFIG_BASE_SMALL : 0 > UDP hash table entries: 128 (order: 0, 4096 bytes) > table->mask, UDP_HTABLE_SIZE_MIN : 127 256 > CONFIG_BASE_SMALL : 0 > UDP-Lite hash table entries: 128 (order: 0, 4096 bytes) > table->mask, UDP_HTABLE_SIZE_MIN : 127 256 > NET: Registered protocol family 1 > .... > .... > > printk(s) are placed in udp.c as listed below: > > diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c > index 588f47a..ca7f6c6 100644 > --- a/net/ipv4/udp.c > +++ b/net/ipv4/udp.c > @@ -2162,7 +2162,7 @@ __setup("uhash_entries=", set_uhash_entries); > void __init udp_table_init(struct udp_table *table, const char *name) > { > unsigned int i; > - > + printk("CONFIG_BASE_SMALL : %d \n", CONFIG_BASE_SMALL); > if (!CONFIG_BASE_SMALL) > table->hash = alloc_large_system_hash(name, > 2 * sizeof(struct udp_hslot), > @@ -2175,6 +2175,8 @@ void __init udp_table_init(struct udp_table > *table, const char *name) > /* > * Make sure hash table has the minimum size > */ > + printk("table->mask, UDP_HTABLE_SIZE_MIN : %d %d > \n",table->mask,UDP_HTABLE_SIZE_MIN); > + > if (CONFIG_BASE_SMALL || table->mask < UDP_HTABLE_SIZE_MIN - 1) { > table->hash = kmalloc(UDP_HTABLE_SIZE_MIN * > 2 * sizeof(struct udp_hslot), GFP_KERNEL); > ~ How much memory do you have exactly on this machine ? alloc_large_system_hash() has no parameter to specify a minimum hash table, and UDP needs one. If you care about losing 8192 bytes of memory, you could boot with "uhash_entries=256" -- 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/