Took down my server:
May 28 18:06:19 host2 kernel: [16516634.010636] ------------[ cut here ]------------ May 28 18:06:19 host2 kernel: [16516634.010649] WARNING: at /build/buildd/linux-2.6.32/net/sched/sch_generic.c:261 dev_watchdog+0x262/0x270() May 28 18:06:19 host2 kernel: [16516634.010652] Hardware name: PowerEdge 2950 May 28 18:06:19 host2 kernel: [16516634.010654] NETDEV WATCHDOG: eth0 (bnx2): transmit queue 0 timed out May 28 18:06:19 host2 kernel: [16516634.010656] Modules linked in: btrfs zlib_deflate crc32c libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp joydev kvm_intel kvm usbhid usb_storage fbcon tileblit font bitblit softcursor hid vga16fb vgastate radeon ttm drm_kms_helper drm i2c_algo_bit dell_wmi dcdbas psmouse serio_raw bnx2 i5000_edac edac_core i5k_amb shpchp lp parport ses enclosure aic79xx megaraid_sas May 28 18:06:19 host2 kernel: [16516634.010711] Pid: 0, comm: swapper Not tainted 2.6.32-25-server #45-Ubuntu May 28 18:06:19 host2 kernel: [16516634.010714] Call Trace: May 28 18:06:19 host2 kernel: [16516634.010716] <IRQ> [<ffffffff81065f3b>] warn_slowpath_common+0x7b/0xc0 May 28 18:06:19 host2 kernel: [16516634.010726] [<ffffffff81065fe1>] warn_slowpath_fmt+0x41/0x50 May 28 18:06:19 host2 kernel: [16516634.010729] [<ffffffff8148c492>] dev_watchdog+0x262/0x270 May 28 18:06:19 host2 kernel: [16516634.010734] [<ffffffff81019103>] ? native_sched_clock+0x13/0x60 May 28 18:06:19 host2 kernel: [16516634.010739] [<ffffffff8108a225>] ? sched_clock_local+0x25/0x90 May 28 18:06:19 host2 kernel: [16516634.010742] [<ffffffff8148c230>] ? dev_watchdog+0x0/0x270 May 28 18:06:19 host2 kernel: [16516634.010746] [<ffffffff8107667b>] run_timer_softirq+0x19b/0x340 May 28 18:06:19 host2 kernel: [16516634.010750] [<ffffffff812b7ddd>] ? rb_insert_color+0x9d/0x160 May 28 18:06:19 host2 kernel: [16516634.010754] [<ffffffff8108e543>] ? ktime_get+0x63/0xe0 May 28 18:06:19 host2 kernel: [16516634.010758] [<ffffffff8106d477>] __do_softirq+0xb7/0x1e0 May 28 18:06:19 host2 kernel: [16516634.010762] [<ffffffff810934ca>] ? tick_program_event+0x2a/0x30 May 28 18:06:19 host2 kernel: [16516634.010766] [<ffffffff810132ec>] call_softirq+0x1c/0x30 May 28 18:06:19 host2 kernel: [16516634.010769] [<ffffffff81014cb5>] do_softirq+0x65/0xa0 May 28 18:06:19 host2 kernel: [16516634.010772] [<ffffffff8106d315>] irq_exit+0x85/0x90 May 28 18:06:19 host2 kernel: [16516634.010777] [<ffffffff8155f391>] smp_apic_timer_interrupt+0x71/0x9c May 28 18:06:19 host2 kernel: [16516634.010780] [<ffffffff81012cb3>] apic_timer_interrupt+0x13/0x20 May 28 18:06:19 host2 kernel: [16516634.010782] <EOI> [<ffffffff8101a571>] ? mwait_idle+0x71/0xd0 May 28 18:06:19 host2 kernel: [16516634.010789] [<ffffffff8155cf2a>] ? atomic_notifier_call_chain+0x1a/0x20 May 28 18:06:19 host2 kernel: [16516634.010793] [<ffffffff81010e63>] ? cpu_idle+0xb3/0x110 May 28 18:06:19 host2 kernel: [16516634.010797] [<ffffffff81551fab>] ? start_secondary+0xa8/0xaa May 28 18:06:19 host2 kernel: [16516634.010800] ---[ end trace 3ef81813fb919e8f ]---
Took down my server:
May 28 18:06:19 host2 kernel: [16516634.010636] ------------[ cut here ]------------ buildd/ linux-2. 6.32/net/ sched/sch_ generic. c:261 dev_watchdog+ 0x262/0x270( ) f3b>] warn_slowpath_ common+ 0x7b/0xc0 fe1>] warn_slowpath_ fmt+0x41/ 0x50 492>] dev_watchdog+ 0x262/0x270 103>] ? native_ sched_clock+ 0x13/0x60 225>] ? sched_clock_ local+0x25/ 0x90 230>] ? dev_watchdog+ 0x0/0x270 67b>] run_timer_ softirq+ 0x19b/0x340 ddd>] ? rb_insert_ color+0x9d/ 0x160 543>] ? ktime_get+0x63/0xe0 477>] __do_softirq+ 0xb7/0x1e0 4ca>] ? tick_program_ event+0x2a/ 0x30 2ec>] call_softirq+ 0x1c/0x30 cb5>] do_softirq+ 0x65/0xa0 315>] irq_exit+0x85/0x90 391>] smp_apic_ timer_interrupt +0x71/0x9c cb3>] apic_timer_ interrupt+ 0x13/0x20 571>] ? mwait_idle+ 0x71/0xd0 f2a>] ? atomic_ notifier_ call_chain+ 0x1a/0x20 e63>] ? cpu_idle+0xb3/0x110 fab>] ? start_secondary +0xa8/0xaa
May 28 18:06:19 host2 kernel: [16516634.010649] WARNING: at /build/
May 28 18:06:19 host2 kernel: [16516634.010652] Hardware name: PowerEdge 2950
May 28 18:06:19 host2 kernel: [16516634.010654] NETDEV WATCHDOG: eth0 (bnx2): transmit queue 0 timed out
May 28 18:06:19 host2 kernel: [16516634.010656] Modules linked in: btrfs zlib_deflate crc32c libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs exportfs reiserfs ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp joydev kvm_intel kvm usbhid usb_storage fbcon tileblit font bitblit softcursor hid vga16fb vgastate radeon ttm drm_kms_helper drm i2c_algo_bit dell_wmi dcdbas psmouse serio_raw bnx2 i5000_edac edac_core i5k_amb shpchp lp parport ses enclosure aic79xx megaraid_sas
May 28 18:06:19 host2 kernel: [16516634.010711] Pid: 0, comm: swapper Not tainted 2.6.32-25-server #45-Ubuntu
May 28 18:06:19 host2 kernel: [16516634.010714] Call Trace:
May 28 18:06:19 host2 kernel: [16516634.010716] <IRQ> [<ffffffff81065
May 28 18:06:19 host2 kernel: [16516634.010726] [<ffffffff81065
May 28 18:06:19 host2 kernel: [16516634.010729] [<ffffffff8148c
May 28 18:06:19 host2 kernel: [16516634.010734] [<ffffffff81019
May 28 18:06:19 host2 kernel: [16516634.010739] [<ffffffff8108a
May 28 18:06:19 host2 kernel: [16516634.010742] [<ffffffff8148c
May 28 18:06:19 host2 kernel: [16516634.010746] [<ffffffff81076
May 28 18:06:19 host2 kernel: [16516634.010750] [<ffffffff812b7
May 28 18:06:19 host2 kernel: [16516634.010754] [<ffffffff8108e
May 28 18:06:19 host2 kernel: [16516634.010758] [<ffffffff8106d
May 28 18:06:19 host2 kernel: [16516634.010762] [<ffffffff81093
May 28 18:06:19 host2 kernel: [16516634.010766] [<ffffffff81013
May 28 18:06:19 host2 kernel: [16516634.010769] [<ffffffff81014
May 28 18:06:19 host2 kernel: [16516634.010772] [<ffffffff8106d
May 28 18:06:19 host2 kernel: [16516634.010777] [<ffffffff8155f
May 28 18:06:19 host2 kernel: [16516634.010780] [<ffffffff81012
May 28 18:06:19 host2 kernel: [16516634.010782] <EOI> [<ffffffff8101a
May 28 18:06:19 host2 kernel: [16516634.010789] [<ffffffff8155c
May 28 18:06:19 host2 kernel: [16516634.010793] [<ffffffff81010
May 28 18:06:19 host2 kernel: [16516634.010797] [<ffffffff81551
May 28 18:06:19 host2 kernel: [16516634.010800] ---[ end trace 3ef81813fb919e8f ]---