netdev - WARNING: at net/ipv4/tcp_input.c:2539 tcp

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Message-ID: <651806990805170819j5fdd42eeq805bfc31776ac897@mail.gmail.com>
Date:	Sat, 17 May 2008 18:19:40 +0300
From:	"int 986" <int986@...il.com>
To:	netdev@...r.kernel.org
Subject: WARNING: at net/ipv4/tcp_input.c:2539 tcp_ack+0xd2b/0x191f()

Hello,
i am hitting this ops regularly on my web servers, when bandwidth
exceeds 250mbit/s
both with intel and broadcom nic. I've tried with tso and without it -
there is no diference.

gcc version: 4.2.3 (Debian 4.2.3-1)
kernel: 2.6.25.3

oops with broadcom nic

------------[ cut here ]------------
WARNING: at net/ipv4/tcp_input.c:2539 tcp_ack+0xd2b/0x191f()
Modules linked in: dm_snapshot dm_mirror loop jfs raid0 md_mod
Pid: 0, comm: swapper Not tainted 2.6.25.3 #1

Call Trace:
 <IRQ>  [<ffffffff8022a655>] warn_on_slowpath+0x51/0x63
 [<ffffffff80478345>] __qdisc_run+0xf6/0x1c8
 [<ffffffff8046cdce>] dev_queue_xmit+0x25b/0x285
 [<ffffffff8026de2c>] add_partial+0x11/0x57
 [<ffffffff802329a1>] lock_timer_base+0x26/0x4c
 [<ffffffff80232ae7>] __mod_timer+0xb0/0xbf
 [<ffffffff804956fe>] tcp_ack+0xd2b/0x191f
 [<ffffffff80498bde>] tcp_rcv_established+0xe2/0x8cc
 [<ffffffff8049e5cd>] tcp_v4_do_rcv+0x2c/0x1ab
 [<ffffffff804a026c>] tcp_v4_rcv+0x661/0x6b1
 [<ffffffff80486478>] ip_local_deliver_finish+0xe9/0x16d
 [<ffffffff8048636c>] ip_rcv_finish+0x2fc/0x31f
 [<ffffffff804666e3>] __netdev_alloc_skb+0x15/0x2f
 [<ffffffff8023f97b>] getnstimeofday+0x2f/0x83
 [<ffffffff8046a375>] netif_receive_skb+0x379/0x39a
 [<ffffffff803b754a>] tg3_poll+0x6a6/0x92d
 [<ffffffff8046c2a6>] net_rx_action+0x7c/0x18d
 [<ffffffff8022f1ab>] __do_softirq+0x65/0xce
 [<ffffffff8020c0cc>] call_softirq+0x1c/0x28
 [<ffffffff8020dfe8>] do_softirq+0x2c/0x68
 [<ffffffff8022f102>] irq_exit+0x3f/0x83
 [<ffffffff8020e22f>] do_IRQ+0xb6/0xd3
 [<ffffffff8020b451>] ret_from_intr+0x0/0xa
 <EOI>  [<ffffffff80209fff>] default_idle+0x0/0x55
 [<ffffffff8020a030>] default_idle+0x31/0x55
 [<ffffffff8020a02b>] default_idle+0x2c/0x55
 [<ffffffff80209fff>] default_idle+0x0/0x55
 [<ffffffff8020a0cb>] cpu_idle+0x77/0x9a

---[ end trace c91b5528f786882c ]---


oops with intel nic


WARNING: at net/ipv4/tcp_input.c:2539 tcp_ack+0xd2b/0x191f()
Modules linked in: microcode jfs dm_snapshot dm_mirror loop e752x_edac e1000
Pid: 19960, comm: lighttpd Not tainted 2.6.25.3 #1

Call Trace:
 <IRQ>  [<ffffffff8022a621>] warn_on_slowpath+0x51/0x63
 [<ffffffff8045a629>] __qdisc_run+0xf6/0x1c8
 [<ffffffff80476bf3>] tcp_sacktag_write_queue+0x821/0x909
 [<ffffffff8044f059>] dev_queue_xmit+0x25b/0x286
 [<ffffffff8026e0fc>] add_partial+0x11/0x57
 [<ffffffff8026efe2>] __slab_free+0x72/0x2a6
 [<ffffffff80477a06>] tcp_ack+0xd2b/0x191f
 [<ffffffff8047b5ba>] tcp_rcv_established+0x7b6/0x8cc
 [<ffffffff804808d5>] tcp_v4_do_rcv+0x2c/0x1ab
 [<ffffffff8044897f>] __netdev_alloc_skb+0x15/0x2f
 [<ffffffff80482574>] tcp_v4_rcv+0x661/0x6b1
 [<ffffffff80468764>] ip_local_deliver_finish+0xe9/0x16d
 [<ffffffff80468658>] ip_rcv_finish+0x2fc/0x31f
 [<ffffffff8023f947>] getnstimeofday+0x2f/0x83
 [<ffffffff8044c600>] netif_receive_skb+0x379/0x39a
 [<ffffffff8800594e>] :e1000:e1000_clean_rx_irq+0x40f/0x508
 [<ffffffff88002d2e>] :e1000:e1000_clean+0x2fa/0x486
 [<ffffffff80335f92>] blk_run_queue+0x28/0x73
 [<ffffffff8044e531>] net_rx_action+0x7c/0x18d
 [<ffffffff8022f177>] __do_softirq+0x65/0xce
 [<ffffffff8020c0cc>] call_softirq+0x1c/0x28
 [<ffffffff8020dfe8>] do_softirq+0x2c/0x68
 [<ffffffff8022f0ce>] irq_exit+0x3f/0x83
 [<ffffffff8020e22a>] do_IRQ+0xb6/0xd4
 [<ffffffff8020b451>] ret_from_intr+0x0/0xa
 <EOI>  [<ffffffff802cb012>] reiserfs_do_truncate+0x39/0x487
 [<ffffffff802cb00a>] reiserfs_do_truncate+0x31/0x487
 [<ffffffff804c2024>] __down_read+0x12/0x93
 [<ffffffff802cb486>] reiserfs_delete_object+0x26/0x62
 [<ffffffff802bce9f>] reiserfs_delete_inode+0x0/0xae
 [<ffffffff802bcf02>] reiserfs_delete_inode+0x63/0xae
 [<ffffffff802bce9f>] reiserfs_delete_inode+0x0/0xae
 [<ffffffff802842f5>] generic_delete_inode+0x71/0xe3
 [<ffffffff80281b93>] d_kill+0x34/0x55
 [<ffffffff80281ed5>] dput+0xd3/0xdd
 [<ffffffff80273eb1>] __fput+0x13b/0x164
 [<ffffffff8027183b>] filp_close+0x5d/0x65
 [<ffffffff802729c3>] sys_close+0x7e/0xb7
 [<ffffffff8020af2b>] system_call_after_swapgs+0x7b/0x80

---[ end trace f2e98a35b752e057 ]---

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