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[Johann Miller <1285304@xxxxxxxxxxxxxxxxxx>]

Have the same problem on Kubuntu 14.04, ethernet connection breaks down
on high traffic load (e.g. rsync over GigE) after a while, and then it
turns on an off, but it's not working anymore. After that I am not able
to shutdown or reboot the machine, it crashes the system while shutdown.

[25588.389495] sky2 0000:07:00.0: error interrupt status=0x80000000
[25588.389508] sky2 0000:07:00.0: PCI hardware error (0x2010)
[25593.788008] ------------[ cut here ]------------
[25593.788023] WARNING: CPU: 3 PID: 0 at /build/buildd/linux-3.13.0/net/sched/sch_generic.c:264 dev_watchdog+0x276/0x280()
[25593.788029] NETDEV WATCHDOG: eth0 (sky2): transmit queue 0 timed out
[25593.788031] Modules linked in: nls_iso8859_1 snd_hrtimer pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) rpcsec_gss_krb5 nfsv4 tda1004x saa7134_dvb saa7134_alsa rc_pinnacle_color ir_kbd_i2c ip6table_filter ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables snd_atiixp_modem snd_via82xx_modem snd_intel8x0m snd_ac97_codec ac97_bus tda827x ir_lirc_codec lirc_dev ir_mce_kbd_decoder ir_sanyo_decoder ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder ir_nec_decoder rc_rc6_mce rfcomm tda8290 tuner coretemp snd_hda_codec_hdmi ts2020 ds3000 joydev bnep mceusb serio_raw cx23885 saa7134 btcx_risc altera_ci videobuf_dvb tda18271 altera_stapl cx2341x snd_hda_intel tveeprom dvb_core snd_hda_codec videobuf_dma_sg snd_hwdep snd_ctxfi bluetooth rc_core lpc_ich v4l2_common snd_seq_midi videobuf_core snd_seq_midi_event videodev snd_pcm snd_rawmidi snd_page_alloc snd_seq snd_seq_device snd_timer snd soundcore mac_hid parport_pc ppdev lp nfsd parport auth_rpcgss nfs_acl nfs lockd sunrpc fscache raid10 raid1 raid0 multipath linear raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx usb_storage xor pata_acpi raid6_pq hid_generic hid_cherry usbhid hid radeon psmouse i2c_algo_bit sky2 ahci pata_jmicron ttm libahci drm_kms_helper drm e1000e ptp pps_core
[25593.788145] CPU: 3 PID: 0 Comm: swapper/3 Tainted: GF         IO 3.13.0-24-generic #47-Ubuntu
[25593.788150] Hardware name: System Manufact System Product/LP DK P45-T2RS PLUS, BIOS 6.00 PG 09/14/2009
[25593.788153]  0000000000000009 ffff88023fd83d98 ffffffff81715ac4 ffff88023fd83de0
[25593.788159]  ffff88023fd83dd0 ffffffff810676bd 0000000000000000 ffff880234230000
[25593.788163]  ffff88022ee74680 0000000000000001 0000000000000003 ffff88023fd83e30
[25593.788169] Call Trace:
[25593.788172]  <IRQ>  [<ffffffff81715ac4>] dump_stack+0x45/0x56
[25593.788184]  [<ffffffff810676bd>] warn_slowpath_common+0x7d/0xa0
[25593.788189]  [<ffffffff8106772c>] warn_slowpath_fmt+0x4c/0x50
[25593.788196]  [<ffffffff8163aed6>] dev_watchdog+0x276/0x280
[25593.788200]  [<ffffffff8163ac60>] ? dev_graft_qdisc+0x80/0x80
[25593.788203]  [<ffffffff81074226>] call_timer_fn+0x36/0x100
[25593.788210]  [<ffffffff8163ac60>] ? dev_graft_qdisc+0x80/0x80
[25593.788213]  [<ffffffff810751bf>] run_timer_softirq+0x1ef/0x2f0
[25593.788219]  [<ffffffff8106caec>] __do_softirq+0xec/0x2c0
[25593.788224]  [<ffffffff8106d035>] irq_exit+0x105/0x110
[25593.788229]  [<ffffffff81728885>] smp_apic_timer_interrupt+0x45/0x60
[25593.788236]  [<ffffffff8172721d>] apic_timer_interrupt+0x6d/0x80
[25593.788240]  <EOI>  [<ffffffff8104f596>] ? native_safe_halt+0x6/0x10
[25593.788249]  [<ffffffff8101c5ff>] default_idle+0x1f/0xc0
[25593.788255]  [<ffffffff8101cec6>] arch_cpu_idle+0x26/0x30
[25593.788261]  [<ffffffff810beb85>] cpu_startup_entry+0xc5/0x290
[25593.788266]  [<ffffffff81040fc8>] start_secondary+0x218/0x2c0
[25593.788270] ---[ end trace 24cd47656e3d41ae ]---
[25593.788274] sky2 0000:07:00.0 eth0: tx timeout
[25593.788282] sky2 0000:07:00.0 eth0: transmit ring 118 .. 23 report=118 done=118
[25596.547164] sky2 0000:07:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both
[25601.788007] sky2 0000:07:00.0 eth0: tx timeout
[25601.788020] sky2 0000:07:00.0 eth0: transmit ring 3 .. 46 report=3 done=3
[25604.890428] sky2 0000:07:00.0 eth0: Link is up at 1000 Mbps, full duplex, flow control both

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https://bugs.launchpad.net/bugs/1285304

Title:
  NETDEV WATCHDOG: eth0 (sky2): transmit queue 0 timed out

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Fixed ethernet not working, and dmesg says upon connecting the
  ethernet cable.

  sander@flappie:~$ uname -a
  Linux flappie 3.11.0-15-generic #25-Ubuntu SMP Thu Jan 30 17:22:01 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  sander@flappie:~$ 
  sander@flappie:~$ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 13.10
  Release:	13.10
  Codename:	saucy
  sander@flappie:~$

  
  [   39.963577] ------------[ cut here ]------------
  [   39.963592] WARNING: CPU: 0 PID: 0 at /build/buildd/linux-3.11.0/net/sched/sch_generic.c:260 dev_watchdog+0x26a/0x280()
  [   39.963595] NETDEV WATCHDOG: eth0 (sky2): transmit queue 0 timed out
  [   39.963597] Modules linked in: pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) parport_pc ppdev rfcomm bnep bluetooth joydev vesafb(F) binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek intel_powerclamp coretemp kvm_intel kvm samsung_laptop uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core arc4 videodev microcode snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi snd_seq_midi_event snd_rawmidi ath9k psmouse ath9k_common ath9k_hw serio_raw ath intel_ips mac80211 snd_seq lpc_ich snd_seq_device snd_timer snd i915 cfg80211 drm_kms_helper soundcore drm i2c_algo_bit video mac_hid lp parport hid_generic usbhid hid ahci sky2 libahci
  [   39.963661] CPU: 0 PID: 0 Comm: swapper/0 Tainted: GF          O 3.11.0-15-generic #25-Ubuntu
  [   39.963664] Hardware name: SAMSUNG ELECTRONICS CO., LTD. R530/R730/R540              /R530/R730/R540              , BIOS 08JV.M029.20100621.hkk 06/21/2010
  [   39.963666]  0000000000000009 ffff880117c03d60 ffffffff816e7375 ffff880117c03da8
  [   39.963670]  ffff880117c03d98 ffffffff81061dcd ffff880111f6e000 0000000000000000
  [   39.963673]  0000000000000000 ffff88010e7e5c80 ffff88010e7e5c00 ffff880117c03df8
  [   39.963677] Call Trace:
  [   39.963679]  <IRQ>  [<ffffffff816e7375>] dump_stack+0x45/0x56
  [   39.963694]  [<ffffffff81061dcd>] warn_slowpath_common+0x7d/0xa0
  [   39.963698]  [<ffffffff81061e3c>] warn_slowpath_fmt+0x4c/0x50
  [   39.963704]  [<ffffffff8160f9ea>] dev_watchdog+0x26a/0x280
  [   39.963708]  [<ffffffff8160f780>] ? dev_deactivate_queue.constprop.32+0x60/0x60
  [   39.963716]  [<ffffffff8106e776>] call_timer_fn+0x36/0x110
  [   39.963719]  [<ffffffff8160f780>] ? dev_deactivate_queue.constprop.32+0x60/0x60
  [   39.963723]  [<ffffffff8106f8dd>] run_timer_softirq+0x1fd/0x2b0
  [   39.963728]  [<ffffffff810673c7>] __do_softirq+0xf7/0x240
  [   39.963733]  [<ffffffff816f8c5c>] call_softirq+0x1c/0x30
  [   39.963741]  [<ffffffff81014bf5>] do_softirq+0x55/0x90
  [   39.963744]  [<ffffffff810676a5>] irq_exit+0xb5/0xc0
  [   39.963748]  [<ffffffff816f9605>] smp_apic_timer_interrupt+0x45/0x60
  [   39.963754]  [<ffffffff816f7f9d>] apic_timer_interrupt+0x6d/0x80
  [   39.963755]  <EOI>  [<ffffffff8159fe9f>] ? cpuidle_enter_state+0x4f/0xc0
  [   39.963765]  [<ffffffff8159fe98>] ? cpuidle_enter_state+0x48/0xc0
  [   39.963768]  [<ffffffff8159ffd9>] cpuidle_idle_call+0xc9/0x210
  [   39.963772]  [<ffffffff8101bafe>] arch_cpu_idle+0xe/0x30
  [   39.963778]  [<ffffffff810b54c5>] cpu_startup_entry+0xe5/0x280
  [   39.963783]  [<ffffffff816d64b7>] rest_init+0x77/0x80
  [   39.963790]  [<ffffffff81d26ef7>] start_kernel+0x40a/0x416
  [   39.963793]  [<ffffffff81d268f6>] ? repair_env_string+0x5c/0x5c
  [   39.963797]  [<ffffffff81d26120>] ? early_idt_handlers+0x120/0x120
  [   39.963800]  [<ffffffff81d265de>] x86_64_start_reservations+0x2a/0x2c
  [   39.963804]  [<ffffffff81d266e8>] x86_64_start_kernel+0x108/0x117
  [   39.963806] ---[ end trace a5bab22cccc43373 ]---
  [   39.963813] sky2 0000:06:00.0 eth0: tx timeout
  [   39.963823] sky2 0000:06:00.0 eth0: transmit ring 17 .. 20 report=17 done=17

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