On Tue, 2013-02-19 at 08:58 -0800, Phil Oester wrote: > Hi Jeff - > > Eric Dumazet suggested I send this to you, as he believes it to be a driver > bug. > > Phil Oester >
Thanks! Added the e1000-devel mailing list as well as Bruce Allan (e1000e driver maintainer). > > ----- Forwarded message from Phil Oester <[email protected]> ----- > > Date: Fri, 15 Feb 2013 15:27:52 -0800 > From: Phil Oester <[email protected]> > To: [email protected] > Cc: [email protected] > Subject: 3.7 networking regression - bisected > > Since upgrading a box to 3.7, I've been seeing e1000e issues on one box: > > e1000e 0000:00:19.0: eth2: Detected Hardware Unit Hang > > While 3.6 worked fine. I bisected the problem down to commit > 69b08f62e17439ee3d436faf0b9a7ca6fffb78db ("net: use bigger pages in > __netdev_alloc_frag"). Running 3.7.x without that commit is > currently working fine. > > I have other boxes on 3.7 with e1000e that are not experiencing this > problem. The difference on this box is it runs at 100mb, which > disables TSO: > > e1000e 0000:00:19.0 eth2: 10/100 speed: disabling TSO > > So maybe the problem doesn't occur with TSO enabled? Either that, > or there is something unique about the traffic pattern this box is seeing. > > Full log entries below. > > Phil Oester > > > > Feb 15 17:38:19 char1 kernel: e1000e 0000:00:19.0: eth2: Detected Hardware > Unit Hang: > Feb 15 17:38:19 char1 kernel: TDH <f> > Feb 15 17:38:19 char1 kernel: TDT <22> > Feb 15 17:38:19 char1 kernel: next_to_use <22> > Feb 15 17:38:19 char1 kernel: next_to_clean <d> > Feb 15 17:38:19 char1 kernel: buffer_info[next_to_clean]: > Feb 15 17:38:19 char1 kernel: time_stamp <10001bb67> > Feb 15 17:38:19 char1 kernel: next_to_watch <f> > Feb 15 17:38:19 char1 kernel: jiffies <10001bfa9> > Feb 15 17:38:19 char1 kernel: next_to_watch.status <0> > Feb 15 17:38:19 char1 kernel: MAC Status <80243> > Feb 15 17:38:19 char1 kernel: PHY Status <792d> > Feb 15 17:38:19 char1 kernel: PHY 1000BASE-T Status <0> > Feb 15 17:38:19 char1 kernel: PHY Extended Status <3000> > Feb 15 17:38:19 char1 kernel: PCI Status <10> > Feb 15 17:38:21 char1 kernel: e1000e 0000:00:19.0: eth2: Detected Hardware > Unit Hang: > Feb 15 17:38:21 char1 kernel: TDH <f> > Feb 15 17:38:21 char1 kernel: TDT <22> > Feb 15 17:38:21 char1 kernel: next_to_use <22> > Feb 15 17:38:21 char1 kernel: next_to_clean <d> > Feb 15 17:38:21 char1 kernel: buffer_info[next_to_clean]: > Feb 15 17:38:21 char1 kernel: time_stamp <10001bb67> > Feb 15 17:38:21 char1 kernel: next_to_watch <f> > Feb 15 17:38:21 char1 kernel: jiffies <10001c071> > Feb 15 17:38:21 char1 kernel: next_to_watch.status <0> > Feb 15 17:38:21 char1 kernel: MAC Status <80243> > Feb 15 17:38:21 char1 kernel: PHY Status <792d> > Feb 15 17:38:21 char1 kernel: PHY 1000BASE-T Status <0> > Feb 15 17:38:21 char1 kernel: PHY Extended Status <3000> > Feb 15 17:38:21 char1 kernel: PCI Status <10> > Feb 15 17:38:23 char1 kernel: e1000e 0000:00:19.0: eth2: Detected Hardware > Unit Hang: > Feb 15 17:38:23 char1 kernel: TDH <f> > Feb 15 17:38:23 char1 kernel: TDT <22> > Feb 15 17:38:23 char1 kernel: next_to_use <22> > Feb 15 17:38:23 char1 kernel: next_to_clean <d> > Feb 15 17:38:23 char1 kernel: buffer_info[next_to_clean]: > Feb 15 17:38:23 char1 kernel: time_stamp <10001bb67> > Feb 15 17:38:23 char1 kernel: next_to_watch <f> > Feb 15 17:38:23 char1 kernel: jiffies <10001c139> > Feb 15 17:38:23 char1 kernel: next_to_watch.status <0> > Feb 15 17:38:23 char1 kernel: MAC Status <80243> > Feb 15 17:38:23 char1 kernel: PHY Status <792d> > Feb 15 17:38:23 char1 kernel: PHY 1000BASE-T Status <0> > Feb 15 17:38:23 char1 kernel: PHY Extended Status <3000> > Feb 15 17:38:23 char1 kernel: PCI Status <10> > Feb 15 17:38:25 char1 kernel: e1000e 0000:00:19.0: eth2: Detected Hardware > Unit Hang: > Feb 15 17:38:25 char1 kernel: TDH <f> > Feb 15 17:38:25 char1 kernel: TDT <22> > Feb 15 17:38:25 char1 kernel: next_to_use <22> > Feb 15 17:38:25 char1 kernel: next_to_clean <d> > Feb 15 17:38:25 char1 kernel: buffer_info[next_to_clean]: > Feb 15 17:38:25 char1 kernel: time_stamp <10001bb67> > Feb 15 17:38:25 char1 kernel: next_to_watch <f> > Feb 15 17:38:25 char1 kernel: jiffies <10001c201> > Feb 15 17:38:25 char1 kernel: next_to_watch.status <0> > Feb 15 17:38:25 char1 kernel: MAC Status <80243> > Feb 15 17:38:25 char1 kernel: PHY Status <792d> > Feb 15 17:38:25 char1 kernel: PHY 1000BASE-T Status <0> > Feb 15 17:38:25 char1 kernel: PHY Extended Status <3000> > Feb 15 17:38:25 char1 kernel: PCI Status <10> > Feb 15 17:38:27 char1 kernel: e1000e 0000:00:19.0: eth2: Detected Hardware > Unit Hang: > Feb 15 17:38:27 char1 kernel: TDH <f> > Feb 15 17:38:27 char1 kernel: TDT <22> > Feb 15 17:38:27 char1 kernel: next_to_use <22> > Feb 15 17:38:27 char1 kernel: next_to_clean <d> > Feb 15 17:38:27 char1 kernel: buffer_info[next_to_clean]: > Feb 15 17:38:27 char1 kernel: time_stamp <10001bb67> > Feb 15 17:38:27 char1 kernel: next_to_watch <f> > Feb 15 17:38:27 char1 kernel: jiffies <10001c2c9> > Feb 15 17:38:27 char1 kernel: next_to_watch.status <0> > Feb 15 17:38:27 char1 kernel: MAC Status <80243> > Feb 15 17:38:27 char1 kernel: PHY Status <792d> > Feb 15 17:38:27 char1 kernel: PHY 1000BASE-T Status <0> > Feb 15 17:38:27 char1 kernel: PHY Extended Status <3000> > Feb 15 17:38:27 char1 kernel: PCI Status <10> > Feb 15 17:38:28 char1 kernel: ------------[ cut here ]------------ > Feb 15 17:38:28 char1 kernel: WARNING: at net/sched/sch_generic.c:255 > dev_watchdog+0x239/0x250() > Feb 15 17:38:28 char1 kernel: Hardware name: OptiPlex 755 > Feb 15 17:38:28 char1 kernel: NETDEV WATCHDOG: eth2 (e1000e): transmit queue > 0 timed out > Feb 15 17:38:28 char1 kernel: Modules linked in: iptable_nat nf_nat_ipv4 > xt_LOG xt_limit xt_pkttype xt_tcpudp xt_state xt_iprange xt_multiport > iptable_filter ip_tables x_tables nf_nat_tftp nf_nat_ftp nf_nat > nf_conntrack_tftp nf_conntrack_ftp nf_conntrack_ipv4 nf_defrag_ipv4 > nf_conntrack e1000e e1000 lpc_ich coretemp hwmon mfd_core ahci libahci > Feb 15 17:38:28 char1 kernel: Pid: 0, comm: swapper/1 Not tainted > 3.6.0-2.fc16.x86_64 #1 > Feb 15 17:38:28 char1 kernel: Call Trace: > Feb 15 17:38:28 char1 kernel: <IRQ> [<ffffffff8128c300>] ? > dev_watchdog+0x170/0x250 > Feb 15 17:38:28 char1 kernel: [<ffffffff8102ac6b>] ? > warn_slowpath_common+0x7b/0xc0 > Feb 15 17:38:28 char1 kernel: [<ffffffff8102ad65>] ? > warn_slowpath_fmt+0x45/0x50 > Feb 15 17:38:28 char1 kernel: [<ffffffff8128c3c9>] ? dev_watchdog+0x239/0x250 > Feb 15 17:38:28 char1 kernel: [<ffffffff81036bb6>] ? > run_timer_softirq+0x106/0x230 > Feb 15 17:38:28 char1 kernel: [<ffffffff8128c190>] ? > pfifo_fast_dequeue+0xe0/0xe0 > Feb 15 17:38:28 char1 kernel: [<ffffffff81031af8>] ? __do_softirq+0xa8/0x150 > Feb 15 17:38:28 char1 kernel: [<ffffffff812fd3ec>] ? call_softirq+0x1c/0x26 > Feb 15 17:38:28 char1 kernel: [<ffffffff81003a1d>] ? do_softirq+0x4d/0x80 > Feb 15 17:38:28 char1 kernel: [<ffffffff81031e0e>] ? irq_exit+0x8e/0xb0 > Feb 15 17:38:28 char1 kernel: [<ffffffff8101c628>] ? > smp_apic_timer_interrupt+0x68/0xa0 > Feb 15 17:38:28 char1 kernel: [<ffffffff812fcd07>] ? > apic_timer_interrupt+0x67/0x70 > Feb 15 17:38:28 char1 kernel: <EOI> [<ffffffff81061690>] ? > __tick_nohz_idle_enter+0x330/0x410 > Feb 15 17:38:28 char1 kernel: [<ffffffff810098a1>] ? mwait_idle+0x51/0x70 > Feb 15 17:38:28 char1 kernel: [<ffffffff8100a1b6>] ? cpu_idle+0x86/0xd0 > Feb 15 17:38:28 char1 kernel: ---[ end trace 50a96207e385a66c ]--- > Feb 15 17:38:28 char1 kernel: e1000e 0000:00:19.0: eth2: Reset adapter > Feb 15 17:38:29 char1 kernel: e1000e: eth2 NIC Link is Up 100 Mbps Full > Duplex, Flow Control: None > > ----- End forwarded message -----
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