Message-ID: <9BBC4E0CF881AA4299206E2E1412B62621F0B1@ORSMSX102.amr.corp.intel.com>
Date:	Mon, 16 Jan 2012 15:56:58 +0000
From:	"Wyborny, Carolyn" <carolyn.wyborny@...el.com>
To:	Chris Boot <bootc@...tc.net>
CC:	netdev <netdev@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	"e1000-devel@...ts.sourceforge.net" 
	<e1000-devel@...ts.sourceforge.net>
Subject: RE: e1000e interface hang on 82574L



>-----Original Message-----
>From: Chris Boot [mailto:bootc@...tc.net]
>Sent: Sunday, January 15, 2012 3:11 AM
>To: Wyborny, Carolyn
>Cc: netdev; lkml; e1000-devel@...ts.sourceforge.net
>Subject: Re: e1000e interface hang on 82574L
>
>On 04/01/2012 17:12, Chris Boot wrote:
>> On 03/01/2012 00:02, Wyborny, Carolyn wrote:
>>>
>>>
>>>> -----Original Message-----
>>>> From: netdev-owner@...r.kernel.org [mailto:netdev-
>owner@...r.kernel.org]
>>>> On Behalf Of Chris Boot
>>>> Sent: Saturday, December 31, 2011 1:32 AM
>>>> To: netdev; lkml; e1000-devel@...ts.sourceforge.net
>>>> Subject: Re: e1000e interface hang on 82574L
>>>>
>>>> On 27 Dec 2011, at 22:01, Chris Boot wrote:
>>>>
>>>>> Hi folks,
>>>>>
>>>>> Another networking issue I've run into, this time with e1000e
>(Intel
>>>> Corporation 82574L Gigabit). My new VM cluster appears to drop a NIC
>-
>>>> the port stops responding within Linux and shows the link as being
>down
>>>> with ethtool. My ISP says 'Ports running Half Duplex or reduced
>speed'
>>>> on the port.
>>>>>
>>>>> When the port stops working I see this in dmesg:
>>>>>
>>>>> [35481.659629] ------------[ cut here ]------------
>>>>> [35481.667837] WARNING: at net/sched/sch_generic.c:255
>>>> dev_watchdog+0xe9/0x148()
>>>>> [35481.676370] Hardware name: X9SCL/X9SCM
>>>>> [35481.684793] NETDEV WATCHDOG: eth2 (e1000e): transmit queue 0
>timed
>>>> out
>>>>> [35481.684795] Modules linked in: hmac sha256_generic dlm configfs
>>>> ebtable_nat ebtables acpi_cpufreq mperf cpufreq_stats
>>>> cpufreq_conservative cpufreq_userspace cpufreq_powersave microcode
>>>> xt_NOTRACK ip_set_hash_net act_police cls_basic cls_flow cls_fw
>cls_u32
>>>> sch_tbf sch_prio sch_htb sch_hfsc sch_ingress sch_sfq xt_connlimit
>>>> xt_realm xt_addrtype ip_set_hash_ip iptable_raw xt_comment xt_recent
>>>> ipt_ULOG ipt_REJECT ipt_REDIRECT ipt_NETMAP ipt_MASQUERADE ipt_ECN
>>>> ipt_ecn ipt_CLUSTERIP ipt_ah nf_nat_tftp nf_nat_snmp_basic
>>>> nf_conntrack_snmp nf_nat_sip nf_nat_pptp nf_nat_proto_gre nf_nat_irc
>>>> nf_nat_h323 nf_nat_ftp ip6_queue nf_nat_amanda xt_set ip_set
>>>> nf_conntrack_tftp nf_conntrack_sip nf_conntrack_sane
>>>> nf_conntrack_proto_udplite nf_conntrack_proto_sctp nf_conntrack_pptp
>>>> nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_netbios_ns
>>>> nf_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323
>>>> nf_conntrack_ftp ts_kmp nf_conntrack_amanda xt_TPROXY xt_NFLOG
>>>> nfnetlink_log nf_tproxy_core xt_time xt_TCPMSS xt_tcpmss xt_sctp
>>>> xt_policy xt_pkttype xt_physdev xt_owner xt_NFQUEUE xt_multiport
>xt_mark
>>>> xt_mac xt_limit xt_length xt_iprange xt_helper xt_hashlimit xt_DSCP
>>>> xt_dscp xt_dccp xt_connmark xt_CLASSIFY xt_AUDIT ip6t_LOG
>ip6t_REJECT
>>>> nf_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack ip6table_raw ipt_LOG
>>>> xt_tcpudp ip6table_mangle xt_state iptable_nat nf_nat
>nf_conntrack_ipv4
>>>> nf_defrag_ipv4 nf_conntrack iptable_mangle nfnetlink iptable_filter
>>>> ip_tables ip6table_filter ip6_tables x_tables bridge stp bonding
>>>> w83627ehf hwmon_vid coretemp sha1_ssse3 sha1_generic crc32c_intel
>>>> aesni_intel cryptd aes_x86_64 aes_generic ipmi_poweroff ipmi_devintf
>>>> ipmi_si ipmi_msghandler vhost_net macvtap macvlan tun drbd lru_cache
>cn
>>>> loop kvm_intel kvm snd_pcm snd_timer snd iTCO_wdt soundcore psmouse
>>>> snd_page_alloc i2c_i801 i2c_core cdc_acm iTCO_vendor_support joydev
>>>> evdev serio_raw processor button pcspkr thermal_sys ext4 mbcache
>jbd2
>>>> crc16 dm_mod raid1 md_mod sd_mod crc_t10dif usb_storage uas usbhid
>hid
>>>> ahci libahci libata igb ehci_hcd scsi_mod usbcore e1000e dca
>usb_common
>>>> [last unloaded: scsi_wait_scan]
>>>>> [35481.685740] Pid: 0, comm: swapper/4 Not tainted 3.2.0-rc6+ #4
>>>>> [35481.685744] Call Trace:
>>>>> [35481.685746]<IRQ> [<ffffffff810467ed>] ?
>>>> warn_slowpath_common+0x78/0x8c
>>>>> [35481.685849] [<ffffffff81046899>] ? warn_slowpath_fmt+0x45/0x4a
>>>>> [35481.685875] [<ffffffff810aeaa0>] ?
>>>> perf_event_task_tick+0x166/0x1ab
>>>>> [35481.686018] [<ffffffff81294219>] ? netif_tx_lock+0x40/0x72
>>>>> [35481.686090] [<ffffffff8129437a>] ? dev_watchdog+0xe9/0x148
>>>>> [35481.686136] [<ffffffff81051e58>] ? run_timer_softirq+0x19a/0x261
>>>>> [35481.686176] [<ffffffff81294291>] ? netif_tx_unlock+0x46/0x46
>>>>> [35481.686215] [<ffffffff810659bb>] ? timekeeping_get_ns+0xd/0x2a
>>>>> [35481.686286] [<ffffffff8104bdd4>] ? __do_softirq+0xb9/0x177
>>>>> [35481.686365] [<ffffffff81341d6c>] ? call_softirq+0x1c/0x30
>>>>> [35481.686530] [<ffffffff8100f841>] ? do_softirq+0x3c/0x7b
>>>>> [35481.686580] [<ffffffff8104c03c>] ? irq_exit+0x3c/0x9a
>>>>> [35481.686742] [<ffffffff81023e58>] ?
>>>> smp_apic_timer_interrupt+0x74/0x82
>>>>> [35481.686820] [<ffffffff813405de>] ?
>apic_timer_interrupt+0x6e/0x80
>>>>> [35481.686826]<EOI> [<ffffffff811ddf49>] ? intel_idle+0xea/0x119
>>>>> [35481.686991] [<ffffffff811ddf28>] ? intel_idle+0xc9/0x119
>>>>> [35481.687051] [<ffffffff8125dce3>] ? cpuidle_idle_call+0xec/0x179
>>>>> [35481.687089] [<ffffffff8100d255>] ? cpu_idle+0xa1/0xe8
>>>>> [35481.687143] [<ffffffff810706ee>] ?
>arch_local_irq_restore+0x2/0x8
>>>>> [35481.687189] [<ffffffff8132d191>] ? start_secondary+0x1d5/0x1db
>>>>> [35481.687234] ---[ end trace 01e9907674757948 ]---
>>>>> [35481.687817] e1000e 0000:05:00.0: eth2: Reset adapter
>>>>>
>>>>> To try to regain connectivity I bring down the bond and the
>interface
>>>> (eth2), then unload e1000e. Upon loading the module again:
>>>>>
>>>>> [36021.888962] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k
>>>>> [36021.900258] e1000e: Copyright(c) 1999 - 2011 Intel Corporation.
>>>>> [36021.911446] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level,
>low) -
>>>>> IRQ 20
>>>>> [36021.923204] e1000e 0000:00:19.0: setting latency timer to 64
>>>>> [36021.923372] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X
>>>>> [36022.202737] e1000e 0000:00:19.0: eth2: (PCI
>Express:2.5GT/s:Width
>>>> x1) 00:25:90:56:ac:75
>>>>> [36022.214480] e1000e 0000:00:19.0: eth3: Intel(R) PRO/1000 Network
>>>> Connection
>>>>> [36022.227506] e1000e 0000:00:19.0: eth3: MAC: 10, PHY: 11, PBA No:
>>>> FFFFFF-0FF
>>>>> [36022.239789] e1000e 0000:05:00.0: Disabling ASPM L0s
>>>>> [36022.239805] e1000e 0000:05:00.0: enabling device (0000 -> 0002)
>>>>> [36022.239829] e1000e 0000:05:00.0: PCI INT A -> GSI 16 (level,
>low) -
>>>>> IRQ 16
>>>>> [36022.239921] e1000e 0000:05:00.0: setting latency timer to 64
>>>>> [36022.240963] e1000e 0000:05:00.0: irq 64 for MSI/MSI-X
>>>>> [36022.240995] e1000e 0000:05:00.0: irq 65 for MSI/MSI-X
>>>>> [36022.241028] e1000e 0000:05:00.0: irq 66 for MSI/MSI-X
>>>>> [36022.241596] e1000e 0000:05:00.0: PCI INT A disabled
>>>>> [36022.241606] e1000e: probe of 0000:05:00.0 failed with error -2
>>>>> [36022.304706] udevd[3634]: renamed network interface eth2 to eth3
>>>>>
>>>>> I then don't get an eth2 interface. Only a reboot brings the
>interface
>>>> back. This has happened twice so far on this server in the past
>week,
>>>> both times using v3.2-rc7-3-g4962516.
>>>>>
>>>>> lspci -vnn shows:
>>>>>
>>>>> 05:00.0 Ethernet controller [0200]: Intel Corporation 82574L
>Gigabit
>>>> Network Connection [8086:10d3]
>>>>> Subsystem: Super Micro Computer Inc Device [15d9:0000]
>>>>> Flags: bus master, fast devsel, latency 0, IRQ 16
>>>>> Memory at fbd00000 (32-bit, non-prefetchable) [size=128K]
>>>>> I/O ports at e000 [size=32]
>>>>> Memory at fbd20000 (32-bit, non-prefetchable) [size=16K]
>>>>> Capabilities: [c8] Power Management version 2
>>>>> Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
>>>>> Capabilities: [e0] Express Endpoint, MSI 00
>>>>> Capabilities: [a0] MSI-X: Enable+ Count=5 Masked-
>>>>> Capabilities: [100] Advanced Error Reporting
>>>>> Capabilities: [140] Device Serial Number 00-25-90-ff-ff-56-ac-
>>>> 74
>>>>> Kernel driver in use: e1000e
>>>>
>>>> I've just had this happen on my other (identical) server with a
>nearly
>>>> identical trace. Is there anything I can do do avoid this at all or
>at
>>>> least help narrow down the problem?
>>>>
>>>> Cheers,
>>>> Chris
>>>>
>>>> --
>>>> Chris Boot
>>>> bootc@...tc.net
>>>>
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe netdev" in
>>>> the body of a message to majordomo@...r.kernel.org
>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>>
>>> Hello,
>>>
>>> Sorry for the delay in responding. We have seen some hang issues
>using
>>> MSI-X on 82574 parts. Can you try reloading the driver the IntMode
>>> module parameter. IntMode=1 (you'll need a setting for each device in
>>> the system so two adapters would be IntMode=1,1) See if that changes
>>> the symptom you are seeing with this part. That setting will make
>sure
>>> the adapter uses MSI interrupts instead of MSI-X.
>>
>> Carolyn,
>>
>> I'll give this a go next time I reproduce it. I built a new kernel
>with
>> more debugging and so far it hasn't yet triggered again...
>
>Upgrading to a more recent 3.2-rc snapshot seems to have cured the
>problem - I haven't had an interface stop responding since. Must have
>been some seemingly unrelated patch that I can't seem to locate.
>
>Cheers,
>Chris
>
>--
>Chris Boot
>bootc@...tc.net
Thanks for letting me know Chris.  For my own edification, are you still configured with MSI-X?

Thanks,

Carolyn

Carolyn Wyborny
Linux Development
LAN Access Division
Intel Corporation

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