Why logs are full of traces like "WARNING: at net/core/dev.c:1760 skb_gso_segment" in Red Hat Enterprise Linux 6 ?
Issue
- Can see
/var/log/dmesg
and/var/log/messages
full of traces like shown below. - Have configure bonding and not see issue till now, need to know the reason for these messages and how to get rid of it.
May 23 11:12:21 hostname kernel: WARNING: at net/core/dev.c:1760 skb_gso_segment+0x1df/0x2b0() (Tainted: G W --------------- )
May 23 11:12:21 hostname kernel: Hardware name: ProLiant DL585 G7
May 23 11:12:21 hostname kernel: netxen_nic: caps=(0x9b0, 0x1113b9) len=4420 data_len=4380 ip_summed=0
May 23 11:12:21 hostname kernel: Modules linked in: ses enclosure sunrpc bonding 8021q garp stp llc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 ext2 power_meter hpilo hpwdt sg netxen_nic serio_raw k10temp amd64_edac_mod edac_core edac_mce_amd i2c_piix4 shpchp ext4 mbcache jbd2 dm_round_robin sd_mod crc_t10dif hpsa qla2xxx(U) scsi_transport_fc scsi_tgt pata_acpi ata_generic pata_atiixp ahci radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core dm_multipath dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]
May 23 11:12:21 hostname kernel: Pid: 39288, comm: scxcimserver Tainted: G W --------------- 2.6.32-358.6.2.el6.x86_64 #1
May 23 11:12:21 hostname kernel: Call Trace:
May 23 11:12:21 hostname kernel: [<ffffffff8106e2e7>] ? warn_slowpath_common+0x87/0xc0
May 23 11:12:21 hostname kernel: [<ffffffff8106e3d6>] ? warn_slowpath_fmt+0x46/0x50
May 23 11:12:21 hostname kernel: [<ffffffffa0322e80>] ? netxen_nic_get_drvinfo+0xc0/0xf0 [netxen_nic]
May 23 11:12:21 hostname kernel: [<ffffffff81448aef>] ? skb_gso_segment+0x1df/0x2b0
May 23 11:12:21 hostname kernel: [<ffffffff8143f3b4>] ? pskb_expand_head+0x64/0x270
May 23 11:12:21 hostname kernel: [<ffffffff81448ed0>] ? dev_hard_start_xmit+0x1b0/0x530
May 23 11:12:21 hostname kernel: [<ffffffff814672c8>] ? sch_direct_xmit+0x78/0x1c0
May 23 11:12:21 hostname kernel: [<ffffffff8113b489>] ? zone_statistics+0x99/0xc0
May 23 11:12:21 hostname kernel: [<ffffffff814673aa>] ? sch_direct_xmit+0x15a/0x1c0
May 23 11:12:21 hostname kernel: [<ffffffff8144cd30>] ? dev_queue_xmit+0x3b0/0x550
May 23 11:12:21 hostname kernel: [<ffffffffa03e9ed7>] ? bond_dev_queue_xmit+0x67/0x200 [bonding]
May 23 11:12:21 hostname kernel: [<ffffffffa03ea361>] ? bond_start_xmit+0x2f1/0x5d0 [bonding]
May 23 11:12:21 hostname kernel: [<ffffffff81449028>] ? dev_hard_start_xmit+0x308/0x530
May 23 11:12:21 hostname kernel: [<ffffffff8144caec>] ? dev_queue_xmit+0x16c/0x550
May 23 11:12:21 hostname kernel: [<ffffffff8100bb8e>] ? apic_timer_interrupt+0xe/0x20
May 23 11:12:21 hostname kernel: [<ffffffff8144cb85>] ? dev_queue_xmit+0x205/0x550
May 23 11:12:21 hostname kernel: [<ffffffff8148545c>] ? ip_finish_output+0x13c/0x310
May 23 11:12:21 hostname kernel: [<ffffffff814856e8>] ? ip_output+0xb8/0xc0
May 23 11:12:21 hostname kernel: [<ffffffff814849e5>] ? ip_local_out+0x25/0x30
May 23 11:12:21 hostname kernel: [<ffffffff81484ec0>] ? ip_queue_xmit+0x190/0x420
May 23 11:12:21 hostname kernel: [<ffffffff81499bee>] ? tcp_transmit_skb+0x3fe/0x7b0
May 23 11:12:21 hostname kernel: [<ffffffff8149bfab>] ? tcp_write_xmit+0x1fb/0xa20
May 23 11:12:21 hostname kernel: [<ffffffff8149c960>] ? __tcp_push_pending_frames+0x30/0xe0
May 23 11:12:21 hostname kernel: [<ffffffff8148c19e>] ? tcp_push+0x6e/0x90
May 23 11:12:21 hostname kernel: [<ffffffff8148d19c>] ? tcp_sendmsg+0x64c/0xa20
May 23 11:12:21 hostname kernel: [<ffffffff81437f1b>] ? sock_aio_write+0x19b/0x1c0
May 23 11:12:21 hostname kernel: [<ffffffff81180d7a>] ? do_sync_write+0xfa/0x140
May 23 11:12:21 hostname kernel: [<ffffffff81096ca0>] ? autoremove_wake_function+0x0/0x40
May 23 11:12:21 hostname kernel: [<ffffffff8100bbce>] ? invalidate_interrupt0+0xe/0x20
May 23 11:12:21 hostname kernel: [<ffffffff8121bc36>] ? security_file_permission+0x16/0x20
May 23 11:12:21 hostname kernel: [<ffffffff81181144>] ? vfs_write+0x184/0x1a0
May 23 11:12:21 hostname kernel: [<ffffffff81181971>] ? sys_write+0x51/0x90
May 23 11:12:21 hostname kernel: [<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b
May 23 11:12:21 hostname kernel: ---[ end trace 2a5404c08da8bb3d ]---
May 23 11:12:21 hostname kernel: ------------[ cut here ]------------
Environment
- Red Hat Enterprise Linux 6.4
- kernel-2.6.32-358.6.2.el6.x86_64
- netxen_nic, bnx2x, tg3, and/or other network drivers
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