On Tue, Sep 27, 2011 at 04:10:20PM -0600, Thomas Fjellstrom wrote: > Hi, > > I've been having some issues with KVM recently where one or more vms will cause page allocation failure messages, usually with the backtrace including networking functions, example follows: > > [362409.429944] kvm: page allocation failure: order:1, mode:0x20 > [362409.429957] Pid: 3453, comm: kvm Not tainted 3.0.0-1-amd64 #1 > [362409.429965] Call Trace: > [362409.429970] <IRQ> [<ffffffff810b9c90>] ? warn_alloc_failed+0x108/0x11b > [362409.429998] [<ffffffff810bcd78>] ? __alloc_pages_nodemask+0x6e6/0x75c > [362409.430012] [<ffffffff810ec0c0>] ? kmem_getpages+0x55/0xf0 > [362409.430022] [<ffffffff810ec87a>] ? fallback_alloc+0x129/0x1c1 > [362409.430035] [<ffffffff8100e28d>] ? paravirt_read_tsc+0x5/0x8 > [362409.430045] [<ffffffff810ed10e>] ? kmem_cache_alloc+0x73/0xf0 > [362409.430057] [<ffffffff812707a2>] ? sk_prot_alloc+0x2b/0x128 > [362409.430067] [<ffffffff81270965>] ? sk_clone+0x14/0x2bd > [362409.430077] [<ffffffff812ade7d>] ? inet_csk_clone+0x10/0x91 > [362409.430088] [<ffffffff812c1aae>] ? tcp_create_openreq_child+0x21/0x41a > [362409.430099] [<ffffffff812bf98a>] ? tcp_v4_syn_recv_sock+0x33/0x208 > [362409.430110] [<ffffffff812c2441>] ? tcp_check_req+0x1ff/0x2dd > [362409.430122] [<ffffffff812adc06>] ? inet_csk_search_req+0x35/0xa7 > [362409.430132] [<ffffffff812bf4f1>] ? tcp_v4_do_rcv+0x206/0x32c > [362409.430144] [<ffffffff812c15d4>] ? tcp_v4_rcv+0x419/0x66c > [362409.430154] [<ffffffff8100e74a>] ? native_sched_clock+0x28/0x30 > [362409.430173] [<ffffffff812a5a0c>] ? ip_local_deliver_finish+0x14b/0x1bb > [362409.430186] [<ffffffff8127cc8f>] ? __netif_receive_skb+0x3d7/0x40b > [362409.430197] [<ffffffff8127d74b>] ? netif_receive_skb+0x52/0x58 > [362409.430220] [<ffffffffa04b5af6>] ? br_nf_pre_routing_finish+0x1d4/0x1e1 [bridge] > [362409.430241] [<ffffffffa04b5111>] ? NF_HOOK_THRESH+0x3b/0x55 [bridge] > [362409.430260] [<ffffffffa04b60ed>] ? br_nf_pre_routing+0x3be/0x3cb [bridge] > [362409.430272] [<ffffffff8129fb69>] ? nf_iterate+0x41/0x77 > [362409.430288] [<ffffffffa04b13a3>] ? NF_HOOK.clone.4+0x56/0x56 [bridge] > [362409.430305] [<ffffffffa04b13a3>] ? NF_HOOK.clone.4+0x56/0x56 [bridge] > [362409.430315] [<ffffffff8129fc12>] ? nf_hook_slow+0x73/0x111 > [362409.430330] [<ffffffffa04b13a3>] ? NF_HOOK.clone.4+0x56/0x56 [bridge] > [362409.430342] [<ffffffff8103f0a4>] ? try_to_wake_up+0x199/0x199 > [362409.430358] [<ffffffffa04b13a3>] ? NF_HOOK.clone.4+0x56/0x56 [bridge] > [362409.430375] [<ffffffffa04b1389>] ? NF_HOOK.clone.4+0x3c/0x56 [bridge] > [362409.430392] [<ffffffffa04b1745>] ? br_handle_frame+0x1af/0x1c6 [bridge] > [362409.430408] [<ffffffffa04b1596>] ? br_handle_frame_finish+0x1f3/0x1f3 [bridge] > [362409.430420] [<ffffffff8127cb7c>] ? __netif_receive_skb+0x2c4/0x40b > [362409.430432] [<ffffffff8127cd3b>] ? process_backlog+0x78/0x157 > [362409.430443] [<ffffffff8127dd68>] ? net_rx_action+0xa4/0x1b2 > [362409.430454] [<ffffffff81038189>] ? test_tsk_need_resched+0xe/0x17 > [362409.430465] [<ffffffff8104bdd4>] ? __do_softirq+0xb9/0x178 > [362409.430476] [<ffffffff8133cf1c>] ? call_softirq+0x1c/0x30 > > The server has 8G of ram, and usually never uses more than about 4G (sitting at 3.4G right now). This is a guest problem, please report it to the netfilter/lkml lists (if its not a known issue with particular kernel version already). -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
