From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Sun, 24 Jan 2010 00:30:44 +0100 From: Linus =?utf-8?Q?L=C3=BCssing?= Message-ID: <20100123233044.GA12025@Sellars> References: <20100123174616.GA4795@Sellars> <20100123181048.GO24649@lunn.ch> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="hQiwHBbRI9kgIhsi" Content-Disposition: inline In-Reply-To: <20100123181048.GO24649@lunn.ch> Sender: linus.luessing@web.de Subject: Re: [B.A.T.M.A.N.] bat_events: page allocation failure (batman-adv maint) Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: The list for a Better Approach To Mobile Ad-hoc Networking --hQiwHBbRI9kgIhsi Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Ok, this is with symbols enabled and I changed the mac addresses, so they are defintely different now. Here is the new backtrace for the second issue. It occured after about 1-2 hours. Cheers, Linus On Sat, Jan 23, 2010 at 07:10:48PM +0100, Andrew Lunn wrote: > On Sat, Jan 23, 2010 at 06:46:16PM +0100, Linus L??ssing wrote: > > Hey guys, > >=20 > > I've been installing a 9 node setup here in our cellar. They are > > all running B.A.T.M.A.N. adv 0.2.1-beta r1545 (so the current > > batman-adv maintance version in OpenWRT). > >=20 > > The result over night: > > - 1x: bat_events: page allocation failure >=20 > This looks like a memory leak somewhere. It could be anywhere, batman > or some other part of the kernel. >=20 > Can you build your kernel with the kernel memory leak detector > enabled? It is under the Kernel Hacking options. You probably also > need to build the kernel with symbols, which will help with ksymopps > anyway. Documentation for kmemleak is in Documentation/kmemleak.txt. > I've never used it myself, so i've no idea how good it actually is... >=20 > Interestingly, did you notice the warnings: >=20 > batman-adv:The newly added mac address (00:24:01:b7:6a:d2) already exists= on: eth0.2 > batman-adv:It is strongly recommended to keep mac addresses unique to avo= id > +problems! >=20 > I guess this is because you are using VLANs. Have you seen these > problems without using VLANs?=20 >=20 > Andrew >=20 --hQiwHBbRI9kgIhsi Content-Type: text/plain; charset=utf-8 Content-Disposition: attachment; filename="call-trace-0027-24-01-10.log" root@OpenWrt:/# ------------[ cut here ]------------ WARNING: at net/sched/sch_generic.c:226 dev_watchdog+0x19c/0x338() NETDEV WATCHDOG: wifi0 (): transmit timed out Modules linked in: ath_ahb ath_hal(P) batman_adv ip6t_REJECT ip6t_LOG ip6t_rt ip6t_hbh ip6t_mh ip6t_ipv6header ip6t_frag ip6t_eui64 ip6t_ah ip6table_raw ip6_queue ip6table_mangle ip6table_filter ip6_tables ebt_redirect ebt_mark ebt_vlan ebt_stp ebt_pkttype ebt_mark_m ebt_limit ebt_among ebt_802_3 ebtable_nat ebtable_filter ebtable_broute ebtables xt_quota xt_pkttype xt_physdev ipt_REJECT xt_TCPMSS ipt_LOG xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables tun ipv6 Call Trace: [<800493a4>] dump_stack+0x8/0x34 [<80062a84>] warn_slowpath_common+0x70/0xb0 [<80062b04>] warn_slowpath_fmt+0x24/0x30 [<801c9c98>] dev_watchdog+0x19c/0x338 [<8006e1b8>] run_timer_softirq+0x17c/0x234 [<80068f20>] __do_softirq+0xa4/0x154 [<8006902c>] do_softirq+0x5c/0x98 [<80041444>] ret_from_irq+0x0/0x4 [<80041680>] r4k_wait+0x20/0x40 [<8004e910>] cpu_idle+0x24/0x4c [<802a9a4c>] start_kernel+0x36c/0x384 ---[ end trace 57451ac66d72b45d ]-- --hQiwHBbRI9kgIhsi--