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Date: Sat, 17 Mar 2012 15:59:30 +0000 From: Chris Boot <bootc@...tc.net> To: "Wyborny, Carolyn" <carolyn.wyborny@...el.com> 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 On 16/01/2012 16:04, Chris Boot wrote: > On 16/01/2012 15:56, Wyborny, Carolyn wrote: >> >> >>> -----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? > > Carolyn, > > I have made no changes to my configuration to change the interrupt > format. I see the following in dmesg at boot: > > [ 3.276819] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k > [ 3.288193] e1000e: Copyright(c) 1999 - 2011 Intel Corporation. > > [ 3.299842] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) > -> IRQ 20 > [ 3.299909] e1000e 0000:00:19.0: setting latency timer to 64 > [ 3.352929] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X > [ 3.710080] e1000e 0000:00:19.0: eth2: (PCI Express:2.5GT/s:Width > x1) 00:25:90:56:ac:75 > [ 3.710082] e1000e 0000:00:19.0: eth2: Intel(R) PRO/1000 Network > Connection > [ 3.710670] e1000e 0000:00:19.0: eth2: MAC: 10, PHY: 11, PBA No: > FFFFFF-0FF > > [ 3.710678] e1000e 0000:05:00.0: Disabling ASPM L0s > [ 3.710850] e1000e 0000:05:00.0: PCI INT A -> GSI 16 (level, low) > -> IRQ 16 > [ 3.710951] e1000e 0000:05:00.0: setting latency timer to 64 > [ 3.712757] e1000e 0000:05:00.0: irq 64 for MSI/MSI-X > [ 3.712787] e1000e 0000:05:00.0: irq 65 for MSI/MSI-X > [ 3.712805] e1000e 0000:05:00.0: irq 66 for MSI/MSI-X > [ 3.830364] e1000e 0000:05:00.0: eth3: (PCI Express:2.5GT/s:Width > x1) 00:25:90:56:ac:74 > [ 3.830366] e1000e 0000:05:00.0: eth3: Intel(R) PRO/1000 Network > Connection > [ 3.830510] e1000e 0000:05:00.0: eth3: MAC: 3, PHY: 8, PBA No: > FFFFFF-0FF > > /proc/interrupts shows: > > 45: 615958 0 0 0 0 0 > 0 0 IR-PCI-MSI-edge eth3 > 64: 65126106 0 0 0 0 0 > 0 0 IR-PCI-MSI-edge eth2-rx-0 > 65: 52700392 0 0 0 0 0 > 0 0 IR-PCI-MSI-edge eth2-tx-0 > 66: 2 0 0 0 0 0 > 0 0 IR-PCI-MSI-edge eth2 Carolyn, I've just had the opportunity to upgrade to a 3.2.9 kernel on these systems and have made sure e1000e is loaded with IntMode=1,1. One of the servers was only up 5.5 hours before the NIC has crashed/stopped working again. Here is the latest dmesg after the failure: [ 3.254553] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k [ 3.265852] e1000e: Copyright(c) 1999 - 2011 Intel Corporation. [ 3.266034] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [ 3.266067] e1000e 0000:00:19.0: setting latency timer to 64 [ 3.266460] e1000e 0000:00:19.0: (unregistered net_device): Interrupt Mode set to 1 [ 3.266800] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X [ 3.611840] e1000e 0000:00:19.0: eth2: (PCI Express:2.5GT/s:Width x1) 00:25:90:56:ac:75 [ 3.611855] e1000e 0000:00:19.0: eth2: Intel(R) PRO/1000 Network Connection [ 3.612303] e1000e 0000:00:19.0: eth2: MAC: 10, PHY: 11, PBA No: FFFFFF-0FF [ 3.612350] e1000e 0000:05:00.0: Disabling ASPM L0s [ 3.612594] e1000e 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 3.612812] e1000e 0000:05:00.0: setting latency timer to 64 [ 3.613582] e1000e 0000:05:00.0: (unregistered net_device): Interrupt Mode set to 1 [ 3.614156] e1000e 0000:05:00.0: irq 64 for MSI/MSI-X [ 3.734442] e1000e 0000:05:00.0: eth3: (PCI Express:2.5GT/s:Width x1) 00:25:90:56:ac:74 [ 3.734465] e1000e 0000:05:00.0: eth3: Intel(R) PRO/1000 Network Connection [ 3.734689] e1000e 0000:05:00.0: eth3: MAC: 3, PHY: 8, PBA No: FFFFFF-0FF [ 13.799848] e1000e 0000:05:00.0: irq 64 for MSI/MSI-X [ 13.855646] e1000e 0000:05:00.0: irq 64 for MSI/MSI-X [ 14.031739] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X [ 14.087566] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X [ 16.112504] e1000e: eth2 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None [ 16.124129] e1000e 0000:05:00.0: eth2: 10/100 speed: disabling TSO And here is the output just as it hangs: [19745.327241] ------------[ cut here ]------------ [19745.334501] WARNING: at /build/buildd-linux-2.6_3.2.9-1-amd64-KTPapN/linux-2.6-3.2.9/debian/build/source_amd64_none/net/sched/sch_generic.c:255 dev_watchdog+0xe9/0x148() [19745.350441] Hardware name: X9SCL/X9SCM [19745.358859] NETDEV WATCHDOG: eth2 (e1000e): transmit queue 0 timed out [19745.367287] Modules linked in: hmac sha256_generic dlm configfs ebtable_nat ebtables acpi_cpufreq mperf cpufreq_stats cpufreq_conservative cpufreq_userspace cpufreq_powersave microcode ip6_queue xt_TCPMSS xt_sctp ip6t_LOG ip6t_REJECT nf_conntrack_ipv6 ip6table_raw ip6table_mangle ip6table_filter 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_statistic xt_CT xt_time xt_connlimit xt_realm xt_addrtype ip_set_hash_ip iptable_raw xt_comment xt_recent xt_policy ipt_ULOG ipt_REJECT ipt_REDIRECT ipt_NETMAP ipt_MASQUERADE ipt_ECN ipt_ecn ipt_CLUSTERIP ipt_ah xt_set ip_set 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 nf_nat_amanda ts_kmp nf_conntrack_amanda nf_conntrack_sane nf_conntrack_tftp nf_conntrack_sip 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 xt_TPROXY nf_tproxy_core ip6_tables nf_defrag_ipv6 xt_tcpmss xt_pkttype xt_physdev xt_owner xt_NFQUEUE xt_NFLOG nfnetlink_log xt_multiport xt_mark xt_mac xt_limit xt_length xt_iprange xt_helper xt_hashlimit xt_DSCP xt_dscp xt_dccp xt_conntrack xt_connmark xt_CLASSIFY xt_AUDIT ipt_LOG xt_tcpudp xt_state iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack iptable_mangle nfnetlink iptable_filter ip_tables x_tables kvm_intel kvm 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 snd_pcm snd_timer snd soundcore snd_page_alloc iTCO_wdt i2c_i801 psmouse cdc_acm processor i2c_core iTCO_vendor_support serio_raw pcspkr thermal_sys button evdev joydev ext4 mbcache jbd2 crc16 dm_mod raid1 md_mod sd_mod crc_t10dif usb_storage uas usbhid hid ahci libahci libata ehci_hcd usbcore igb scsi_mod e1000e usb_common dca [last unloaded: scsi_wait_scan] [19745.502559] Pid: 0, comm: swapper/0 Not tainted 3.2.0-2-amd64 #1 [19745.502561] Call Trace: [19745.502562] <IRQ> [<ffffffff81046879>] ? warn_slowpath_common+0x78/0x8c [19745.502570] [<ffffffff81046925>] ? warn_slowpath_fmt+0x45/0x4a [19745.502574] [<ffffffff8129aa11>] ? netif_tx_lock+0x40/0x72 [19745.502588] [<ffffffff8129ab72>] ? dev_watchdog+0xe9/0x148 [19745.502601] [<ffffffff81051f38>] ? run_timer_softirq+0x19a/0x261 [19745.502603] [<ffffffff8129aa89>] ? netif_tx_unlock+0x46/0x46 [19745.502606] [<ffffffff81065a73>] ? timekeeping_get_ns+0xd/0x2a [19745.502609] [<ffffffff8104be98>] ? __do_softirq+0xb9/0x177 [19745.502612] [<ffffffff8134892c>] ? call_softirq+0x1c/0x30 [19745.502615] [<ffffffff8100f8e5>] ? do_softirq+0x3c/0x7b [19745.502617] [<ffffffff8104c100>] ? irq_exit+0x3c/0x9a [19745.502621] [<ffffffff81023f18>] ? smp_apic_timer_interrupt+0x74/0x82 [19745.502624] [<ffffffff8134719e>] ? apic_timer_interrupt+0x6e/0x80 [19745.502625] <EOI> [<ffffffff81070761>] ? arch_local_irq_save+0x11/0x17 [19745.502631] [<ffffffff811e45d9>] ? intel_idle+0xea/0x119 [19745.502633] [<ffffffff811e45b8>] ? intel_idle+0xc9/0x119 [19745.502637] [<ffffffff812643f7>] ? cpuidle_idle_call+0xec/0x179 [19745.502639] [<ffffffff8100d248>] ? cpu_idle+0xa5/0xf2 [19745.502641] [<ffffffff816aab3d>] ? start_kernel+0x3bd/0x3c8 [19745.502643] [<ffffffff816aa140>] ? early_idt_handlers+0x140/0x140 [19745.502645] [<ffffffff816aa3c4>] ? x86_64_start_kernel+0x104/0x111 [19745.502646] ---[ end trace 10e791a6f31603fa ]--- [19745.503125] e1000e 0000:05:00.0: eth2: Reset adapter Once again, rmmod e1000e followed by modprobe e1000e does not fix the problem: [20508.158919] e1000e 0000:05:00.0: PCI INT A disabled [20508.194927] e1000e 0000:00:19.0: PCI INT A disabled [20511.119765] e1000e: Intel(R) PRO/1000 Network Driver - 1.5.1-k [20511.130711] e1000e: Copyright(c) 1999 - 2011 Intel Corporation. [20511.141206] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20 [20511.151797] e1000e 0000:00:19.0: setting latency timer to 64 [20511.151921] e1000e 0000:00:19.0: (unregistered net_device): Interrupt Mode set to 1 [20511.162853] e1000e 0000:00:19.0: irq 45 for MSI/MSI-X [20511.528436] e1000e 0000:00:19.0: eth2: (PCI Express:2.5GT/s:Width x1) 00:25:90:56:ac:75 [20511.539261] e1000e 0000:00:19.0: eth3: Intel(R) PRO/1000 Network Connection [20511.550066] e1000e 0000:00:19.0: eth3: MAC: 10, PHY: 11, PBA No: FFFFFF-0FF [20511.561027] e1000e 0000:05:00.0: Disabling ASPM L0s [20511.571883] e1000e 0000:05:00.0: enabling device (0000 -> 0002) [20511.575224] udevd[5449]: renamed network interface eth2 to eth3 [20511.594234] e1000e 0000:05:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [20511.605703] e1000e 0000:05:00.0: setting latency timer to 64 [20511.605871] e1000e 0000:05:00.0: (unregistered net_device): Interrupt Mode set to 1 [20511.617706] e1000e 0000:05:00.0: irq 64 for MSI/MSI-X [20511.617828] e1000e 0000:05:00.0: PCI INT A disabled [20511.629565] e1000e: probe of 0000:05:00.0 failed with error -2 Please let me know if/how I can debug this further. Many thanks, 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
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