Kernel 3.5.2-gentoo One of two INTEl cards in machine : [ 8641.708407] e1000e 0000:03:00.0: eth1: Detected Hardware Unit Hang: [ 8641.708407] TDH <3ac> [ 8641.708407] TDT <3f5> [ 8641.708407] next_to_use <3f5> [ 8641.708407] next_to_clean <3ab> [ 8641.708407] buffer_info[next_to_clean]: [ 8641.708407] time_stamp <1007f377e> [ 8641.708407] next_to_watch <3ae> [ 8641.708407] jiffies <1007f48cc> [ 8641.708407] next_to_watch.status <0> [ 8641.708407] MAC Status <80383> [ 8641.708407] PHY Status <792d> [ 8641.708407] PHY 1000BASE-T Status <3800> [ 8641.708407] PHY Extended Status <3000> [ 8641.708407] PCI Status <10> [ 8642.720015] ------------[ cut here ]------------ [ 8642.720024] WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x260/0x270() [ 8642.720026] Hardware name: G33-DS3R [ 8642.720030] NETDEV WATCHDOG: eth1 (e1000e): transmit queue 0 timed out [ 8642.720032] Modules linked in: xt_addrtype xt_hashlimit xt_recent nf_nat_h323 nf_conntrack_h323 nf_nat_pptp nf_conntrack_pptp nf_conntrack_proto_gre nf_nat_proto_gre nf_nat_irc nf_conntrack_irc ipv6 dm_mod [ 8642.720050] Pid: 0, comm: swapper/0 Not tainted 3.5.2-gentooK4-NO_preemption,1000HZ #3 [ 8642.720052] Call Trace: [ 8642.720055] <IRQ> [<ffffffff8103468a>] warn_slowpath_common+0x7a/0xb0 [ 8642.720065] [<ffffffff81034761>] warn_slowpath_fmt+0x41/0x50 [ 8642.720069] [<ffffffff815dd8a0>] dev_watchdog+0x260/0x270 [ 8642.720074] [<ffffffff810425c9>] run_timer_softirq+0x199/0x2d0 [ 8642.720078] [<ffffffff8104251f>] ? run_timer_softirq+0xef/0x2d0 [ 8642.720082] [<ffffffff815dd640>] ? __netdev_watchdog_up+0x80/0x80 [ 8642.720086] [<ffffffff8103c069>] __do_softirq+0xa9/0x150 [ 8642.720093] [<ffffffff81700e4c>] call_softirq+0x1c/0x30 [ 8642.720097] [<ffffffff81003c55>] do_softirq+0x75/0xb0 [ 8642.720101] [<ffffffff8103bd27>] irq_exit+0x97/0xd0 [ 8642.720105] [<ffffffff8101fd89>] smp_apic_timer_interrupt+0x69/0xa0 [ 8642.720109] [<ffffffff817005dc>] apic_timer_interrupt+0x6c/0x80 [ 8642.720111] <EOI> [<ffffffff8100a17b>] ? mwait_idle+0x6b/0x90 [ 8642.720119] [<ffffffff8100a172>] ? mwait_idle+0x62/0x90 [ 8642.720123] [<ffffffff8100a4d8>] cpu_idle+0x88/0xd0 [ 8642.720127] [<ffffffff816ce2ed>] rest_init+0xad/0xc0 [ 8642.720131] [<ffffffff816ce240>] ? csum_partial_copy_generic+0x170/0x170 [ 8642.720136] [<ffffffff81aa0c6c>] start_kernel+0x328/0x335 [ 8642.720140] [<ffffffff81aa0772>] ? kernel_init+0x19d/0x19d [ 8642.720144] [<ffffffff81aa032d>] x86_64_start_reservations+0x131/0x136 [ 8642.720148] [<ffffffff81aa041f>] x86_64_start_kernel+0xed/0xf4 [ 8642.720150] ---[ end trace 474f23482ccf5ee7 ]--- [ 8642.720279] e1000e 0000:03:00.0: eth1: Reset adapter [ 8645.948025] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 8754.704395] e1000e 0000:03:00.0: eth1: Detected Hardware Unit Hang: [ 8754.704395] TDH <8e4> [ 8754.704395] TDT <926> [ 8754.704395] next_to_use <926> [ 8754.704395] next_to_clean <8e3> [ 8754.704395] buffer_info[next_to_clean]: [ 8754.704395] time_stamp <10080eef2> [ 8754.704395] next_to_watch <8e6> [ 8754.704395] jiffies <100810230> [ 8754.704395] next_to_watch.status <0> [ 8754.704395] MAC Status <80383> [ 8754.704395] PHY Status <792d> [ 8754.704395] PHY 1000BASE-T Status <3800> [ 8754.704395] PHY Extended Status <3000> [ 8754.704395] PCI Status <10> [ 8756.704089] e1000e 0000:03:00.0: eth1: Reset adapter [ 8759.893018] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 8781.708405] e1000e 0000:03:00.0: eth1: Detected Hardware Unit Hang: [ 8781.708405] TDH <3f4> [ 8781.708405] TDT <423> [ 8781.708405] next_to_use <423> [ 8781.708405] next_to_clean <3f3> [ 8781.708405] buffer_info[next_to_clean]: [ 8781.708405] time_stamp <1008158f1> [ 8781.708405] next_to_watch <3f7> [ 8781.708405] jiffies <100816bac> [ 8781.708405] next_to_watch.status <0> [ 8781.708405] MAC Status <80383> [ 8781.708405] PHY Status <792d> [ 8781.708405] PHY 1000BASE-T Status <3800> [ 8781.708405] PHY Extended Status <3000> [ 8781.708405] PCI Status <10> [ 8784.720031] e1000e 0000:03:00.0: eth1: Reset adapter [ 8787.951018] e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx There are two cards in pcie 1x slots. Both cards experienced sudden 2-3s traffic drops at rates around 200mbits, but only eth1 add this error to dmesg This is critical because it is a main router in our wisp company.
1) Does this happen frequently with the 3.5.2 kernel? 2) Does it never happen with an older kernel?
