Network stopped just out of the blue leaving this backtrace After this or during this my network switch just stopped working ang got stuck. Maybe the switch made the problem? Thanks, Eliezer Feb 1 04:07:15 localhost kernel: ------------[ cut here ]------------ Feb 1 04:07:15 localhost kernel: WARNING: at net/sched/sch_generic.c:261 dev_watchdog+0x26d/0x280() (Not tainted) Feb 1 04:07:15 localhost kernel: Hardware name: Feb 1 04:07:15 localhost kernel: NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out Feb 1 04:07:15 localhost kernel: Modules linked in: tcp_diag inet_diag bluetooth rfkill bnx2fc fcoe libfcoe libfc 8021q scsi_transport_fc garp scsi_tgt stp llc sunrpc xt_recent xt_state xt_multiport iptable_filter ipt_REDIRECT ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 iptable_raw xt_MARK xt_socket nf_conntrack nf_defrag_ipv4 ip6_tables nf_defrag_ipv6 iptable_mangle ip_tables ext2 ppdev parport_pc parport serio_raw sg i2c_i801 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd soundcore snd_page_alloc ext3 jbd mbcache sd_mod crc_t10dif pata_acpi ata_generic ata_piix r8169 mii i915 drm_kms_helper drm i2c_algo_bit i2c_core video output dm_mirror dm_region_hash dm_log dm_mod be2iscsi bnx2i cnic uio ipv6 cxgb4i cxgb4 cxgb3i libcxgbi cxgb3 mdio libiscsi_tcp qla4xxx iscsi_boot_sysfs libiscsi scsi_transport_iscsi [last unloaded: scsi_wait_scan] Feb 1 04:07:15 localhost kernel: Pid: 0, comm: swapper Not tainted 2.6.32-279.19.1.el6.centos.plus.x86_64 #1 Feb 1 04:07:15 localhost kernel: Call Trace: Feb 1 04:07:15 localhost kernel: <IRQ> [<ffffffff8106a1e7>] ? warn_slowpath_common+0x87/0xc0 Feb 1 04:07:15 localhost kernel: [<ffffffff8101c0fa>] ? intel_pmu_enable_all+0xba/0x160 Feb 1 04:07:15 localhost kernel: [<ffffffff8106a2d6>] ? warn_slowpath_fmt+0x46/0x50 Feb 1 04:07:15 localhost kernel: [<ffffffff8144e8dd>] ? dev_watchdog+0x26d/0x280 Feb 1 04:07:15 localhost kernel: [<ffffffff8107c67b>] ? internal_add_timer+0x9b/0x110 Feb 1 04:07:15 localhost kernel: [<ffffffff8144e670>] ? dev_watchdog+0x0/0x280 Feb 1 04:07:15 localhost kernel: [<ffffffff8107d2c7>] ? run_timer_softirq+0x197/0x340 Feb 1 04:07:15 localhost kernel: [<ffffffff810a0910>] ? tick_sched_timer+0x0/0xc0 Feb 1 04:07:15 localhost kernel: [<ffffffff8102adad>] ? lapic_next_event+0x1d/0x30 Feb 1 04:07:15 localhost kernel: [<ffffffff81072991>] ? __do_softirq+0xc1/0x1e0 Feb 1 04:07:15 localhost kernel: [<ffffffff81095510>] ? hrtimer_interrupt+0x140/0x250 Feb 1 04:07:15 localhost kernel: [<ffffffff8100c1cc>] ? call_softirq+0x1c/0x30 Feb 1 04:07:15 localhost kernel: [<ffffffff8100de05>] ? do_softirq+0x65/0xa0 Feb 1 04:07:15 localhost kernel: [<ffffffff81072775>] ? irq_exit+0x85/0x90 Feb 1 04:07:15 localhost kernel: [<ffffffff814f8fe0>] ? smp_apic_timer_interrupt+0x70/0x9b Feb 1 04:07:15 localhost kernel: [<ffffffff8100bb93>] ? apic_timer_interrupt+0x13/0x20 Feb 1 04:07:15 localhost kernel: <EOI> [<ffffffff812c999e>] ? intel_idle+0xde/0x170 Feb 1 04:07:15 localhost kernel: [<ffffffff812c9981>] ? intel_idle+0xc1/0x170 Feb 1 04:07:15 localhost kernel: [<ffffffff813fd8b7>] ? cpuidle_idle_call+0xa7/0x140 Feb 1 04:07:15 localhost kernel: [<ffffffff81009fc6>] ? cpu_idle+0xb6/0x110 Feb 1 04:07:15 localhost kernel: [<ffffffff814d80da>] ? rest_init+0x7a/0x80 Feb 1 04:07:15 localhost kernel: [<ffffffff81c22f7b>] ? start_kernel+0x424/0x430 Feb 1 04:07:15 localhost kernel: [<ffffffff81c2233a>] ? x86_64_start_reservations+0x125/0x129 Feb 1 04:07:15 localhost kernel: [<ffffffff81c22438>] ? x86_64_start_kernel+0xfa/0x109 Feb 1 04:07:15 localhost kernel: ---[ end trace 0bd7c853b258ec62 ]--- Feb 1 04:07:15 localhost kernel: r8169 0000:01:00.0: eth0: link up