Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759128AbWLAGTx (ORCPT ); Fri, 1 Dec 2006 01:19:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759132AbWLAGTx (ORCPT ); Fri, 1 Dec 2006 01:19:53 -0500 Received: from rhun.apana.org.au ([64.62.148.172]:47878 "EHLO arnor.apana.org.au") by vger.kernel.org with ESMTP id S1759115AbWLAGTx (ORCPT ); Fri, 1 Dec 2006 01:19:53 -0500 From: Herbert Xu To: alan@lxorguk.ukuu.org.uk (Alan) Subject: Re: kswapd/tg3 issue Cc: yoh@psychology.rutgers.edu, linux-kernel@vger.kernel.org Organization: Core In-Reply-To: <20061130150406.3d0b6afd@localhost.localdomain> X-Newsgroups: apana.lists.os.linux.kernel User-Agent: tin/1.7.4-20040225 ("Benbecula") (UNIX) (Linux/2.6.17-rc4 (i686)) Message-Id: Date: Fri, 01 Dec 2006 17:19:36 +1100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1851 Lines: 41 Alan wrote: >> >> Just got a logwatch daily mail which revealed a problem: >> [2024412.788680] kswapd1: page allocation failure. order:2, mode:0x20 >> and a lengthy backtrace with head >> >> ,------------------------------------------------------------------------ >> | [2024412.795212] Call Trace: >> | [2024412.799768] [] __alloc_pages+0x27a/0x291 >> | [2024412.806452] [] kmem_getpages+0x5e/0xd8 >> | [2024412.812370] [] cache_grow+0xd0/0x185 >> | [2024412.818064] [] cache_alloc_refill+0x18c/0x1da >> | [2024412.824625] [] __kmalloc+0x93/0xa3 >> | [2024412.830145] [] __alloc_skb+0x54/0x117 >> | [2024412.835958] [] __netdev_alloc_skb+0x12/0x2d >> | [2024412.842347] [] tg3_alloc_rx_skb+0xbb/0x146 >> `--- >> full dmesg is at >> http://www.onerussian.com/Linux/bugs/bug.kswapd/dmesg >> >> is that critical? seems to behave ok but... > > Its tell us that the machine got very very tight on memory, far tighter > than it probably ever should in normal situations. It is harmless of > itself and if you only get the odd one is not a worry. Since this is a 2nd order allocation, it could also be that you have memory but it's fragmented. If you aren't using jumbograms you can try disabling that. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt - 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/