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Date: Wed, 28 Nov 2012 20:52:33 +0100 From: Sander Eikelenboom <linux@...elenboom.it> To: linux-kernel@...r.kernel.org CC: netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [167986.379006] WARNING: at net/core/skbuff.c:3444 skb_try_coalesce+0x359/0x390() On one of my virtual machines i got this splat(running a 3.7.0-rc7): [167986.378985] ------------[ cut here ]------------ [167986.379006] WARNING: at net/core/skbuff.c:3444 skb_try_coalesce+0x359/0x390() [167986.379012] Modules linked in: [167986.379021] Pid: 3231, comm: apache2 Not tainted 3.7.0-rc7-20121126-persistent #1 [167986.379028] Call Trace: [167986.379032] <IRQ> [<ffffffff8106762a>] warn_slowpath_common+0x7a/0xb0 [167986.379047] [<ffffffff8106f8b5>] ? local_bh_enable+0xb5/0x160 [167986.379053] [<ffffffff81067675>] warn_slowpath_null+0x15/0x20 [167986.379059] [<ffffffff816a4879>] skb_try_coalesce+0x359/0x390 [167986.379067] [<ffffffff8175bdb9>] tcp_try_coalesce+0x69/0xc0 [167986.379073] [<ffffffff8175be64>] tcp_queue_rcv+0x54/0x100 [167986.379079] [<ffffffff8176023f>] ? tcp_rcv_state_process+0x84f/0xc70 [167986.379086] [<ffffffff8176091b>] tcp_rcv_established+0x2bb/0x6a0 [167986.379093] [<ffffffff8176903f>] ? tcp_v4_rcv+0x6cf/0xb10 [167986.379098] [<ffffffff81768625>] tcp_v4_do_rcv+0x135/0x480 [167986.379106] [<ffffffff8180db82>] ? _raw_spin_lock_nested+0x42/0x50 [167986.379112] [<ffffffff8176903f>] ? tcp_v4_rcv+0x6cf/0xb10 [167986.379118] [<ffffffff817692cd>] tcp_v4_rcv+0x95d/0xb10 [167986.379125] [<ffffffff810b24f8>] ? lock_acquire+0xd8/0x100 [167986.379133] [<ffffffff81745aa5>] ? ip_local_deliver_finish+0x45/0x230 [167986.379140] [<ffffffff81745b7a>] ip_local_deliver_finish+0x11a/0x230 [167986.379149] [<ffffffff81745aa5>] ? ip_local_deliver_finish+0x45/0x230 [167986.379156] [<ffffffff81745cc8>] ip_local_deliver+0x38/0x80 [167986.379162] [<ffffffff8174528a>] ip_rcv_finish+0x15a/0x630 [167986.379169] [<ffffffff81745978>] ip_rcv+0x218/0x300 [167986.379176] [<ffffffff816adc9d>] __netif_receive_skb+0x65d/0x8d0 [167986.379182] [<ffffffff816ad785>] ? __netif_receive_skb+0x145/0x8d0 [167986.379189] [<ffffffff810ae6ed>] ? trace_hardirqs_on+0xd/0x10 [167986.379197] [<ffffffff810fb243>] ? free_hot_cold_page+0x1b3/0x1e0 [167986.379204] [<ffffffff816b01f8>] netif_receive_skb+0x28/0xf0 [167986.379210] [<ffffffff816a5d13>] ? __pskb_pull_tail+0x253/0x340 [167986.400668] [<ffffffff814b5945>] xennet_poll+0xad5/0xe10 [167986.400679] [<ffffffff816b0fa6>] net_rx_action+0x136/0x260 [167986.400692] [<ffffffff8106f4f1>] ? __do_softirq+0x71/0x1a0 [167986.400698] [<ffffffff8106f549>] __do_softirq+0xc9/0x1a0 [167986.400705] [<ffffffff818106fc>] call_softirq+0x1c/0x30 [167986.400709] <EOI> [<ffffffff8100fd95>] do_softirq+0x85/0xf0 [167986.400721] [<ffffffff8174c666>] ? ip_finish_output+0x246/0x530 [167986.400727] [<ffffffff8106f953>] local_bh_enable+0x153/0x160 [167986.400733] [<ffffffff8174c666>] ip_finish_output+0x246/0x530 [167986.400739] [<ffffffff8174c4ed>] ? ip_finish_output+0xcd/0x530 [167986.400749] [<ffffffff8174c9a9>] ip_output+0x59/0xe0 [167986.400755] [<ffffffff8174b4c8>] ip_local_out+0x28/0x90 [167986.400760] [<ffffffff8174ba7f>] ip_queue_xmit+0x17f/0x4a0 [167986.400766] [<ffffffff8174b900>] ? ip_send_unicast_reply+0x340/0x340 [167986.400773] [<ffffffff810a1ed7>] ? getnstimeofday+0x47/0xe0 [167986.400779] [<ffffffff816a24c9>] ? __skb_clone+0x29/0x120 [167986.400786] [<ffffffff81761ba0>] tcp_transmit_skb+0x400/0x8d0 [167986.400793] [<ffffffff81764b8c>] tcp_write_xmit+0x22c/0xa70 [167986.400799] [<ffffffff8176543d>] __tcp_push_pending_frames+0x2d/0x90 [167986.400809] [<ffffffff8175577d>] tcp_sendmsg+0x17d/0xe10 [167986.400816] [<ffffffff8177c0c9>] inet_sendmsg+0xa9/0x100 [167986.400822] [<ffffffff8177c020>] ? inet_autobind+0x70/0x70 [167986.400829] [<ffffffff816991d0>] ? sock_destroy_inode+0x40/0x40 [167986.400835] [<ffffffff816992fd>] sock_aio_write+0x12d/0x140 [167986.400842] [<ffffffff81144ceb>] do_sync_readv_writev+0x9b/0xe0 [167986.400849] [<ffffffff8114539f>] do_readv_writev+0xcf/0x1d0 [167986.400855] [<ffffffff811454de>] vfs_writev+0x3e/0x60 [167986.400861] [<ffffffff8114562a>] sys_writev+0x5a/0xc0 [167986.400871] [<ffffffff812b639e>] ? trace_hardirqs_on_thunk+0x3a/0x3f [167986.400878] [<ffffffff8180f469>] system_call_fastpath+0x16/0x1b [167986.400884] ---[ end trace 2f73b807ee74fc5a ]--- -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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