Hello Christopher,

Bug-report seems okay for upstream.

I first copy-paste its content below for two reasons:

* I've performed tests on the second machine where I have reproduced more tests. Results are not 100% similar. For example tons of "kevent 4 may have been dropped" but none of these :
 xhci_hcd 0000:04:00.0: A Set TR Deq Ptr command is pending.
 xhci_hcd 0000:04:00.0: WARN Cannot submit Set TR Deq Ptr
 xhci_hcd 0000:04:00.0: ERROR Transfer event TRB DMA ptr not part of current TD
details below.

* second reason : to be sure the bug it is okay for kernel list. Anyway since its content is different from previous content, there's value in pasting it here. Following https://wiki.ubuntu.com/Bugs/Upstream/kernel the address to send to is  <email address hidden> mailinglist.

Any feedback welcome.

Regards,


# upstream bug report

[1.] One line summary of the problem:

0b95:1790 [Asus N55SF] Bad performance of Ethernet-to-USB device on USB3 port, dmesg flooded with errors

[2.] Full description of the problem/report:

Plugging USB-to-ethernet device ID 0b95:1790 ASIX Electronics Corp. in USB3 port yields slow performance, dmesg flooded with errors. Plugging on USB2 port, exact same situation otherwise, always works well. Bug is reproducible roughly 3 out of 4 attempts. Every time the bug didn't occur on a USB3 port, the device was recognized as "high-speed" (USB2) instead of "SuperSpeed" (USB3) though it was plugged in a USB3 port.

Reproduced on two different machines including all there details above. Machines are:
* ASUS N55SF laptop, Intel CPU, kernel Linux 3.13.0 64-bit.
* SMT-FOX-NTA3500-BL (or foxconn-nt-a3500 ?), kernel Linux 3.13.0 32-bit.
Both machines have USB2 and USB3 ports.

### When working (USB2 port)
* ethernet auto-negociation is fast
* mii-tool is fast (typical 0.05s)
* few lines in dmesg
* good performance

### When failing (USB3 port, device recognized as SuperSpeed)
* ethernet auto-negociation fails, then eventually works (after a minute or so).
* mii-tool is often slow (10s of seconds instead of 0.05s) but sometimes fast
* DHCP eventually completes (after about 30 seconds) when applicable, then ethernet works.
* "ifconfig" and "ip addr list" slow like mii-tool.
* Unplugging-plugging the cable yields another slow auto-negociation round.



Except when noted, all details below are from the second machine.

Bug was tested on older kernels (3.5.0 and 3.8.0) but device is simply not recognized because driver was included only from 3.9.

Some parts of dmesg output and perfomance measurements given in section [7.7.] below.

[3.] Keywords (i.e., modules, networking, kernel):
[4.] Kernel version (from /proc/version):

Linux version 3.13.0-031300-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201401192235 SMP Mon Jan 20 03:46:44 UTC 2014

[5.] Output of Oops.. message (if applicable) with symbolic information resolved (see Documentation/oops-tracing.txt)

No oops.

[6.] A small shell script or example program which triggers the problem (if possible)

No program needed. Just plug the device and look at dmesg output.

[7.] Environment

lsb_release -rd

Description:	Ubuntu 13.10
Release:	13.10

[7.1.] Software (add the output of the ver_linux script here)

Gnu C                  4.8
Gnu make               3.81
binutils               2.23.52.20130913
util-linux             2.20.1
mount                  support
module-init-tools      9
e2fsprogs              1.42.8
pcmciautils            018
PPP                    2.4.5
Linux C Library        2.17
Dynamic linker (ldd)   2.17
Procps                 3.3.3
Net-tools              1.60
Kbd                    1.15.5
Sh-utils               8.20
wireless-tools         30
Modules Loaded         ctr ccm snd_hda_codec_realtek parport_pc arc4 ppdev snd_hda_codec_hdmi bnep ath9k rfcomm kvm_amd bluetooth ath9k_common kvm ath9k_hw microcode ax88179_178a ath snd_hda_intel radeon usbnet mac80211 snd_hda_codec snd_hwdep joydev snd_pcm snd_page_alloc cfg80211 psmouse snd_seq_midi serio_raw snd_seq_midi_event snd_rawmidi ttm drm_kms_helper snd_seq k10temp drm snd_seq_device snd_timer i2c_algo_bit sp5100_tco snd soundcore i2c_piix4 mac_hid lp parport hid_belkin hid_generic usbhid hid usb_storage pata_acpi r8169 mii ahci pata_atiixp libahci

[7.2.] Processor information (from /proc/cpuinfo):

cat /proc/cpuinfo

processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 20
model		: 1
model name	: AMD E-350 Processor
stepping	: 0
microcode	: 0x5000029
cpu MHz		: 1280.000
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
fdiv_bug	: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 6
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc nonstop_tsc extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt arat hw_pstate npt lbrv svm_lock nrip_save pausefilter
bogomips	: 3200.16
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 20
model		: 1
model name	: AMD E-350 Processor
stepping	: 0
microcode	: 0x5000029
cpu MHz		: 800.000
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
fdiv_bug	: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 6
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc nonstop_tsc extd_apicid aperfmperf pni monitor ssse3 cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch ibs skinit wdt arat hw_pstate npt lbrv svm_lock nrip_save pausefilter
bogomips	: 3200.16
clflush size	: 64
cache_alignment	: 64
address sizes	: 36 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate



[7.3.] Module information (from /proc/modules):

On the first machine, plugging the device in USB3 port for the first time since boot changed /proc/modules like this :

--- cat__proc_modules__before.out	2014-01-23 21:16:09.143061588 +0100
+++ cat__proc_modules__USB2.out	2014-01-23 21:16:40.955062943 +0100
@@ -1,3 +1,5 @@
+ax88179_178a 22112 0 - Live 0x00000000
+usbnet 37940 1 ax88179_178a, Live 0x00000000
 ctr 13025 2 - Live 0x00000000
 ccm 17596 2 - Live 0x00000000
 snd_hda_codec_realtek 51482 1 - Live 0x00000000
@@ -51,7 +53,7 @@
 pata_acpi 12886 0 - Live 0x00000000
 usb_storage 48754 1 - Live 0x00000000
 r8169 62856 0 - Live 0x00000000
-mii 13693 1 r8169, Live 0x00000000
+mii 13693 3 ax88179_178a,usbnet,r8169, Live 0x00000000
 pata_atiixp 13058 0 - Live 0x00000000
 ahci 25703 0 - Live 0x00000000
 libahci 30969 1 ahci, Live 0x00000000

Here is full output on second machine.

cat /proc/modules

ctr 13025 2 - Live 0x00000000
ccm 17596 2 - Live 0x00000000
snd_hda_codec_realtek 51482 1 - Live 0x00000000
parport_pc 32114 0 - Live 0x00000000
arc4 12509 2 - Live 0x00000000
ppdev 17423 0 - Live 0x00000000
snd_hda_codec_hdmi 45847 1 - Live 0x00000000
bnep 19107 2 - Live 0x00000000
ath9k 150423 0 - Live 0x00000000
rfcomm 59026 0 - Live 0x00000000
kvm_amd 55060 0 - Live 0x00000000
bluetooth 356681 10 bnep,rfcomm, Live 0x00000000
ath9k_common 13359 1 ath9k, Live 0x00000000
kvm 400441 1 kvm_amd, Live 0x00000000
ath9k_hw 446556 2 ath9k,ath9k_common, Live 0x00000000
microcode 19002 0 - Live 0x00000000
ax88179_178a 22112 0 - Live 0x00000000
ath 24297 3 ath9k,ath9k_common,ath9k_hw, Live 0x00000000
snd_hda_intel 43398 0 - Live 0x00000000
radeon 1456289 1 - Live 0x00000000
usbnet 37940 1 ax88179_178a, Live 0x00000000
mac80211 560429 1 ath9k, Live 0x00000000
snd_hda_codec 169779 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel, Live 0x00000000
snd_hwdep 13276 1 snd_hda_codec, Live 0x00000000
joydev 17299 0 - Live 0x00000000
snd_pcm 90501 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec, Live 0x00000000
snd_page_alloc 18398 2 snd_hda_intel,snd_pcm, Live 0x00000000
cfg80211 430030 3 ath9k,ath,mac80211, Live 0x00000000
psmouse 97012 0 - Live 0x00000000
snd_seq_midi 13132 0 - Live 0x00000000
serio_raw 13230 0 - Live 0x00000000
snd_seq_midi_event 14475 1 snd_seq_midi, Live 0x00000000
snd_rawmidi 25198 1 snd_seq_midi, Live 0x00000000
ttm 73366 1 radeon, Live 0x00000000
drm_kms_helper 47293 1 radeon, Live 0x00000000
snd_seq 55716 2 snd_seq_midi,snd_seq_midi_event, Live 0x00000000
k10temp 12997 0 - Live 0x00000000
drm 249196 3 radeon,ttm,drm_kms_helper, Live 0x00000000
snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq, Live 0x00000000
snd_timer 28971 2 snd_pcm,snd_seq, Live 0x00000000
i2c_algo_bit 13316 1 radeon, Live 0x00000000
sp5100_tco 13754 0 - Live 0x00000000
snd 61351 11 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_seq_midi,snd_rawmidi,snd_seq,snd_seq_device,snd_timer, Live 0x00000000
soundcore 12600 1 snd, Live 0x00000000
i2c_piix4 17843 0 - Live 0x00000000
mac_hid 13077 0 - Live 0x00000000
lp 13359 0 - Live 0x00000000
parport 40945 3 parport_pc,ppdev,lp, Live 0x00000000
hid_belkin 12567 0 - Live 0x00000000
hid_generic 12492 0 - Live 0x00000000
usbhid 47406 0 - Live 0x00000000
hid 87718 3 hid_belkin,hid_generic,usbhid, Live 0x00000000
usb_storage 48754 1 - Live 0x00000000
pata_acpi 12886 0 - Live 0x00000000
r8169 62856 0 - Live 0x00000000
mii 13693 3 ax88179_178a,usbnet,r8169, Live 0x00000000
ahci 25703 0 - Live 0x00000000
pata_atiixp 13058 0 - Live 0x00000000
libahci 30969 1 ahci, Live 0x00000000


[7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)

cat /proc/ioports

0000-03af : PCI Bus 0000:00
  0000-001f : dma1
  0020-0021 : pic1
  0040-0043 : timer0
  0050-0053 : timer1
  0060-0060 : keyboard
  0062-0062 : EC data
  0064-0064 : keyboard
  0066-0066 : EC cmd
  0070-0071 : rtc0
  0080-008f : dma page reg
  00a0-00a1 : pic2
  00c0-00df : dma2
  00f0-00ff : fpu
  0170-0177 : 0000:00:14.1
    0170-0177 : pata_atiixp
  01f0-01f7 : 0000:00:14.1
    01f0-01f7 : pata_atiixp
  0376-0376 : 0000:00:14.1
    0376-0376 : pata_atiixp
03b0-03df : PCI Bus 0000:00
03e0-0cf7 : PCI Bus 0000:00
  03f6-03f6 : 0000:00:14.1
    03f6-03f6 : pata_atiixp
  040b-040b : pnp 00:02
  04d0-04d1 : pnp 00:06
  04d6-04d6 : pnp 00:02
  0800-0803 : ACPI PM1a_EVT_BLK
  0804-0805 : ACPI PM1a_CNT_BLK
  0808-080b : ACPI PM_TMR
  0810-0815 : ACPI CPU throttle
  0820-0827 : ACPI GPE0_BLK
  0900-090f : pnp 00:02
  0910-091f : pnp 00:02
  0a10-0a13 : pnp 00:02
  0b00-0b07 : piix4_smbus
  0b20-0b3f : pnp 00:02
    0b20-0b27 : piix4_smbus
  0c00-0c01 : pnp 00:02
  0c14-0c14 : pnp 00:02
  0c50-0c51 : pnp 00:02
  0c52-0c52 : pnp 00:02
  0c6c-0c6c : pnp 00:02
  0c6f-0c6f : pnp 00:02
  0cd0-0cd1 : pnp 00:02
  0cd2-0cd3 : pnp 00:02
  0cd4-0cd5 : pnp 00:02
  0cd6-0cd7 : pnp 00:02
    0cd6-0cd7 : SB800 TCO
  0cd8-0cdf : pnp 00:02
0cf8-0cff : PCI conf1
0d00-ffff : PCI Bus 0000:00
  e000-efff : PCI Bus 0000:02
    e000-e0ff : 0000:02:00.0
      e000-e0ff : r8169
  f000-f0ff : 0000:00:01.0
  f100-f10f : 0000:00:14.1
    f100-f10f : pata_atiixp
  f150-f15f : 0000:00:11.0
    f150-f15f : ahci
  f160-f163 : 0000:00:11.0
    f160-f163 : ahci
  f170-f177 : 0000:00:11.0
    f170-f177 : ahci
  f180-f183 : 0000:00:11.0
    f180-f183 : ahci
  f190-f197 : 0000:00:11.0
    f190-f197 : ahci
  fe00-fefe : pnp 00:02


cat /proc/iomem

00000000-00000fff : reserved
00001000-0009ebff : System RAM
0009ec00-0009ffff : reserved
000a0000-000bffff : PCI Bus 0000:00
  000a0000-000bffff : Video RAM area
000c0000-000dffff : PCI Bus 0000:00
  000c0000-000ce1ff : Video ROM
000e0000-000fffff : reserved
  000f0000-000fffff : System ROM
00100000-a7a54fff : System RAM
  01000000-016790b2 : Kernel code
  016790b3-019e56bf : Kernel data
  01ac8000-01badfff : Kernel bss
a7a55000-a7a9cfff : ACPI Non-volatile Storage
a7a9d000-a7aa3fff : ACPI Tables
a7aa4000-a7aa6fff : ACPI Non-volatile Storage
a7aa7000-a7bddfff : reserved
a7bde000-a7bdefff : System RAM
a7bdf000-a7beefff : reserved
a7bef000-a7bf6fff : ACPI Non-volatile Storage
a7bf7000-a7c1cfff : reserved
a7c1d000-a7c5ffff : ACPI Non-volatile Storage
a7c60000-a7dcafff : System RAM
a7dcb000-a7ef7fff : reserved
a7ef8000-a7efffff : System RAM
a7f00000-a7ffffff : RAM buffer
a8000000-bfffffff : pnp 00:01
c0000000-ffffffff : PCI Bus 0000:00
  c0000000-cfffffff : 0000:00:01.0
    c0000000-c04fffff : BOOTFB
  d0000000-d00fffff : PCI Bus 0000:02
    d0000000-d0003fff : 0000:02:00.0
      d0000000-d0003fff : r8169
    d0004000-d0004fff : 0000:02:00.0
      d0004000-d0004fff : r8169
  e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
    e0000000-efffffff : reserved
      e0000000-efffffff : pnp 00:00
  fe900000-fe9fffff : PCI Bus 0000:04
    fe900000-fe907fff : 0000:04:00.0
      fe900000-fe907fff : xhci_hcd
  fea00000-feafffff : PCI Bus 0000:03
    fea00000-fea0ffff : 0000:03:00.0
      fea00000-fea0ffff : ath9k
  feb00000-feb3ffff : 0000:00:01.0
  feb40000-feb43fff : 0000:00:14.2
    feb40000-feb43fff : ICH HD audio
  feb44000-feb47fff : 0000:00:01.1
    feb44000-feb47fff : ICH HD audio
  feb48000-feb480ff : 0000:00:16.2
    feb48000-feb480ff : ehci_hcd
  feb49000-feb49fff : 0000:00:16.0
    feb49000-feb49fff : ohci_hcd
  feb4a000-feb4afff : 0000:00:14.5
    feb4a000-feb4afff : ohci_hcd
  feb4b000-feb4b0ff : 0000:00:13.2
    feb4b000-feb4b0ff : ehci_hcd
  feb4c000-feb4cfff : 0000:00:13.0
    feb4c000-feb4cfff : ohci_hcd
  feb4d000-feb4d0ff : 0000:00:12.2
    feb4d000-feb4d0ff : ehci_hcd
  feb4e000-feb4efff : 0000:00:12.0
    feb4e000-feb4efff : ohci_hcd
  feb4f000-feb4f3ff : 0000:00:11.0
    feb4f000-feb4f3ff : ahci
  fec00000-fec00fff : reserved
    fec00000-fec003ff : IOAPIC 0
  fec10000-fec10fff : reserved
    fec10000-fec10fff : pnp 00:02
  fed00000-fed00fff : reserved
    fed00000-fed00fff : pnp 00:02
      fed00000-fed003ff : HPET 0
  fed61000-fed70fff : reserved
    fed61000-fed70fff : pnp 00:02
  fed80000-fed8ffff : reserved
    fed80000-fed8ffff : pnp 00:02
      fed80b00-fed80b07 : SB800 TCO
  fee00000-fee00fff : Local APIC
    fee00000-fee00fff : pnp 00:02
  fef00000-ffffffff : reserved
    ffe00000-ffffffff : pnp 00:02
100001000-13fffffff : System RAM


[7.5.] PCI information ('lspci -vvv' as root)

00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex
	Subsystem: Advanced Micro Devices, Inc. [AMD] Family 14h Processor Root Complex
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32

00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler [Radeon HD 6310] (prog-if 00 [VGA controller])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 44
	Region 0: Memory at c0000000 (32-bit, prefetchable) [size=256M]
	Region 1: I/O ports at f000 [size=256]
	Region 2: Memory at feb00000 (32-bit, non-prefetchable) [size=256K]
	Expansion ROM at <unassigned> [disabled]
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Complex Integrated Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; Disabled- Retrain- CommClk-
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 41c1
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: radeon

00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Wrestler HDMI Audio
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 45
	Region 0: Memory at feb44000 (32-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Complex Integrated Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; Disabled- Retrain- CommClk-
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 41d1
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: snd_hda_intel

00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 SATA Controller [AHCI mode] (prog-if 01 [AHCI 1.0])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Interrupt: pin A routed to IRQ 19
	Region 0: I/O ports at f190 [size=8]
	Region 1: I/O ports at f180 [size=4]
	Region 2: I/O ports at f170 [size=8]
	Region 3: I/O ports at f160 [size=4]
	Region 4: I/O ports at f150 [size=16]
	Region 5: Memory at feb4f000 (32-bit, non-prefetchable) [size=1K]
	Capabilities: [70] SATA HBA v1.0 InCfgSpace
	Capabilities: [a4] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: ahci

00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at feb4e000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at feb4d000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [e4] Debug port: BAR=1 offset=00e0
	Kernel driver in use: ehci-pci

00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at feb4c000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at feb4b000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [e4] Debug port: BAR=1 offset=00e0
	Kernel driver in use: ehci-pci

00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 SMBus Controller (rev 42)
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Kernel driver in use: piix4_smbus

00:14.1 IDE interface: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 IDE Controller (rev 40) (prog-if 8a [Master SecP PriP])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32
	Interrupt: pin B routed to IRQ 17
	Region 0: I/O ports at 01f0 [size=8]
	Region 1: I/O ports at 03f4 [size=1]
	Region 2: I/O ports at 0170 [size=8]
	Region 3: I/O ports at 0374 [size=1]
	Region 4: I/O ports at f100 [size=16]
	Kernel driver in use: pata_atiixp

00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) (rev 40)
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 16
	Region 0: Memory at feb40000 (64-bit, non-prefetchable) [size=16K]
	Capabilities: [50] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Kernel driver in use: snd_hda_intel

00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 LPC host controller (rev 40)
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0

00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 PCI to PCI Bridge (rev 40) (prog-if 01 [Subtractive decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop+ ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 64
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: fff00000-000fffff
	Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-

00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI2 Controller (prog-if 10 [OHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin C routed to IRQ 18
	Region 0: Memory at feb4a000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 0) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
	I/O behind bridge: 0000e000-0000efff
	Memory behind bridge: fff00000-000fffff
	Prefetchable memory behind bridge: 00000000d0000000-00000000d00fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot-), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ ARIFwd-
		DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -3.5dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [b0] Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 0000
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: pcieport

00:15.1 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB700/SB800/SB900 PCI to PCI bridge (PCIE port 1) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fea00000-feafffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot-), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ ARIFwd-
		DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -3.5dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [b0] Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 0000
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: pcieport

00:15.2 PCI bridge: Advanced Micro Devices, Inc. [AMD/ATI] SB900 PCI to PCI bridge (PCIE port 2) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
	I/O behind bridge: 0000f000-00000fff
	Memory behind bridge: fe900000-fe9fffff
	Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
		PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
	Capabilities: [50] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [58] Express (v2) Root Port (Slot-), MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
			ExtTag+ RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <64ns, L1 <1us
			ClockPM- Surprise- LLActRep+ BwNot+
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
		RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
		RootCap: CRSVisible-
		RootSta: PME ReqID 0000, PMEStatus- PMEPending-
		DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ ARIFwd-
		DevCtl2: Completion Timeout: 65ms to 210ms, TimeoutDis- ARIFwd-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -3.5dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [b0] Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Device 0000
	Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
	Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
	Kernel driver in use: pcieport

00:16.0 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB OHCI0 Controller (prog-if 10 [OHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at feb49000 (32-bit, non-prefetchable) [size=4K]
	Kernel driver in use: ohci-pci

00:16.2 USB controller: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller (prog-if 20 [EHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 32, Cache Line Size: 64 bytes
	Interrupt: pin B routed to IRQ 17
	Region 0: Memory at feb48000 (32-bit, non-prefetchable) [size=256]
	Capabilities: [c0] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
		Bridge: PM- B3+
	Capabilities: [e4] Debug port: BAR=1 offset=00e0
	Kernel driver in use: ehci-pci

00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 0 (rev 43)
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 1
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 2
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 3
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Capabilities: [f0] Secure device <?>
	Kernel driver in use: k10temp

00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 4
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 6
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.6 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 5
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

00:18.7 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 12h/14h Processor Function 7
	Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-

02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 43
	Region 0: I/O ports at e000 [size=256]
	Region 2: Memory at d0004000 (64-bit, prefetchable) [size=4K]
	Region 4: Memory at d0000000 (64-bit, prefetchable) [size=16K]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
		Address: 00000000fee0300c  Data: 41b1
	Capabilities: [70] Express (v2) Endpoint, MSI 01
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 4096 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 unlimited, L1 <64us
			ClockPM+ Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Range ABCD, TimeoutDis+
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
		Vector table: BAR=4 offset=00000000
		PBA: BAR=4 offset=00000800
	Capabilities: [d0] Vital Product Data
		No end tag found
	Capabilities: [100 v1] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
	Capabilities: [140 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Capabilities: [160 v1] Device Serial Number cf-00-00-00-68-4c-e0-00
	Kernel driver in use: r8169

03:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
	Subsystem: Foxconn International, Inc. Device e025
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 17
	Region 0: Memory at fea00000 (64-bit, non-prefetchable) [size=64K]
	Capabilities: [40] Power Management version 3
		Flags: PMEClk- DSI- D1+ D2- AuxCurrent=375mA PME(D0+,D1+,D2-,D3hot+,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit-
		Address: 00000000  Data: 0000
	Capabilities: [60] Express (v2) Legacy Endpoint, MSI 00
		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
			ClockPM- Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis+
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [100 v1] Advanced Error Reporting
		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
		UESvrt:	DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
		AERCap:	First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
	Capabilities: [140 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Capabilities: [160 v1] Device Serial Number 00-15-17-ff-ff-24-14-12
	Capabilities: [170 v1] Power Budgeting <?>
	Kernel driver in use: ath9k

04:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller (prog-if 30 [XHCI])
	Subsystem: Foxconn International, Inc. Device 0e29
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 18
	Region 0: Memory at fe900000 (64-bit, non-prefetchable) [size=32K]
	Capabilities: [50] MSI: Enable- Count=1/8 Maskable- 64bit+
		Address: 0000000000000000  Data: 0000
	Capabilities: [68] MSI-X: Enable+ Count=8 Masked-
		Vector table: BAR=0 offset=00002000
		PBA: BAR=0 offset=00002080
	Capabilities: [78] Power Management version 3
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0-,D1-,D2-,D3hot+,D3cold+)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [80] Express (v2) Legacy Endpoint, MSI 00
		DevCap:	MaxPayload 512 bytes, PhantFunc 0, Latency L0s <64ns, L1 <2us
			ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
		DevCtl:	Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
			RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
			MaxPayload 128 bytes, MaxReadReq 128 bytes
		DevSta:	CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
		LnkCap:	Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <2us
			ClockPM- Surprise- LLActRep- BwNot-
		LnkCtl:	ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
			ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
		LnkSta:	Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
		DevCap2: Completion Timeout: Not Supported, TimeoutDis-
		DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-
		LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB
			 Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
			 Compliance De-emphasis: -6dB
		LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
			 EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
	Capabilities: [100 v1] Virtual Channel
		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
		Arb:	Fixed- WRR32- WRR64- WRR128-
		Ctrl:	ArbSelect=Fixed
		Status:	InProgress-
		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=01
			Status:	NegoPending- InProgress-
	Kernel driver in use: xhci_hcd


[7.6.] SCSI information (from /proc/scsi/scsi)

cat /proc/scsi/scsi

Attached devices:
Host: scsi6 Channel: 00 Id: 00 Lun: 00
  Vendor: SanDisk  Model: Cruzer Blade     Rev: 2.01
  Type:   Direct-Access                    ANSI  SCSI revision: 06


[7.7.] Other information that might be relevant to the problem
       (please look in /proc and include all information that you
       think to be relevant):


ls /proc/

1     119   131   16    2119  29    379   444  525  795  905        cgroups      fb           kmsg           mounts        softirqs       version
10    12    132   1672  22    3     383   445  533  8    932        cmdline      filesystems  kpagecount     mtrr          stat           vmallocinfo
1010  120   1378  17    23    30    3834  459  544  832  947        consoles     fs           kpageflags     net           swaps          vmstat
1011  121   141   1706  24    31    3868  462  610  835  951        cpuinfo      interrupts   latency_stats  pagetypeinfo  sys            zoneinfo
1024  123   1411  1707  2444  32    3869  47   656  841  96         crypto       iomem        loadavg        partitions    sysrq-trigger
1027  124   142   18    25    33    3998  470  674  860  984        devices      ioports      locks          sched_debug   sysvipc
1043  1249  15    19    26    34    4     5    68   862  acpi       diskstats    irq          mdstat         schedstat     timer_list
11    125   1590  2     262   3468  404   520  69   869  asound     dma          kallsyms     meminfo        scsi          timer_stats
1104  126   1591  20    27    35    4315  522  7    874  buddyinfo  driver       kcore        misc           self          tty
117   13    1592  21    279   3772  4320  524  764  9    bus        execdomains  key-users    modules        slabinfo      uptime


* Part of dmesg on USB2 port, or on USB3 but when bug doesn't happen:

when plugging

[ 2915.052793] usb 1-3: new high-speed USB device number 5 using ehci-pci
[ 2915.191176] usb 1-3: New USB device found, idVendor=0b95, idProduct=1790
[ 2915.191192] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2915.191203] usb 1-3: Product: AX88179
[ 2915.191212] usb 1-3: Manufacturer: ASIX Elec. Corp.
[ 2915.191222] usb 1-3: SerialNumber: 00000000000116
[ 2915.518623] ax88179_178a 1-3:1.0 eth0: register 'ax88179_178a' at usb-0000:00:12.2-3, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:05:1b:a3:37:f6
[ 2915.894352] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
[ 2918.006427] ax88179_178a 1-3:1.0 eth2: ax88179 - Link status is: 1
[ 2918.008863] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready

when unplugging:

[ 3003.947004] usb 1-3: USB disconnect, device number 5
[ 3003.949000] ax88179_178a 1-3:1.0 eth2: unregister 'ax88179_178a' usb-0000:00:12.2-3, ASIX AX88179 USB 3.0 Gigabit Ethernet
[ 3003.949042] ax88179_178a 1-3:1.0 eth2: Failed to read reg index 0x0002: -19
[ 3003.949056] ax88179_178a 1-3:1.0 eth2: Failed to write reg index 0x0002: -19
[ 3003.967072] ax88179_178a 1-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19
[ 3003.967095] ax88179_178a 1-3:1.0 (unregistered net_device): Failed to write reg index 0x0001: -19
[ 3003.967108] ax88179_178a 1-3:1.0 (unregistered net_device): Failed to write reg index 0x0002: -19


* On USB3 port when bug happens:

when plugging. I cut some sections and can provide full log on request.

[ 3048.816274] usb 9-2: new SuperSpeed USB device number 7 using xhci_hcd
[ 3048.835297] usb 9-2: New USB device found, idVendor=0b95, idProduct=1790
[ 3048.835310] usb 9-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3048.835321] usb 9-2: Product: AX88179
[ 3048.835331] usb 9-2: Manufacturer: ASIX Elec. Corp.
[ 3048.835339] usb 9-2: SerialNumber: 00000000000116
[ 3049.164442] ax88179_178a 9-2:1.0 eth0: register 'ax88179_178a' at usb-0000:04:00.0-2, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:05:1b:a3:37:f6
[ 3050.539833] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
[ 3052.564452] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3052.692468] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3052.820468] net_ratelimit: 19 callbacks suppressed
[ 3052.820485] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3052.821503] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3052.948508] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3052.949529] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.076509] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.077497] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.204527] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.205503] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.332571] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.333584] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.460570] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.461538] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.588615] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.589620] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.716627] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.717615] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.844645] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.845645] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3053.972650] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3053.973623] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3054.100673] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3054.228691] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3054.356718] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3054.484769] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3054.612778] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3054.740807] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
(...)
[ 3072.535723] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3072.560791] ax88179_178a 9-2:1.0 eth2: Failed to write reg index 0x0002: -110
[ 3072.663731] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
(...)
[ 3073.431849] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3073.559891] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3073.687896] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3073.815919] net_ratelimit: 31 callbacks suppressed
[ 3073.815940] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3073.816940] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3073.943939] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3073.944928] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3074.071961] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3074.072946] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3074.199980] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3074.200963] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3074.328009] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3074.328997] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3074.456019] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3074.456993] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3074.584060] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
[ 3074.585058] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3074.712066] ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
(...)
[ 3077.528543] ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1
[ 3077.560782] ax88179_178a 9-2:1.0 eth2: Failed to write reg index 0x0002: -110
[ 3077.562791] IPv6: ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[ 3083.908797] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0001: -110
[ 3088.908794] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0009: -110
[ 3093.924784] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0000: -110
[ 3098.924784] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0001: -110
[ 3103.924780] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0009: -110
[ 3108.924775] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x000a: -110
[ 3113.924777] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0004: -110
[ 3118.924772] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0005: -110
[ 3166.871667] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x000a: -110
[ 3171.874168] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0001: -110
[ 3176.876661] ax88179_178a 9-2:1.0 eth2: Failed to read reg index 0x0000: -110


Counts below obtained from various tries with: dmesg | sed 's/^.............../|/' | sort | uniq -c | sort -n | tail

     10 |ax88179_178a 9-1:1.0 eth2: kevent 4 may have been dropped
     22 |ax88179_178a 9-1:1.0 eth2: ax88179 - Link status is: 1
     89 |ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
    307 |ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1

      9 |ax88179_178a 9-2:1.0 eth2: Failed to write reg index 0x0002: -110
     10 |ax88179_178a 9-1:1.0 eth2: kevent 4 may have been dropped
     22 |ax88179_178a 9-1:1.0 eth2: ax88179 - Link status is: 1
    119 |ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
    423 |ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1

     13 |ax88179_178a 9-2:1.0 eth2: Failed to write reg index 0x0002: -110
     22 |ax88179_178a 9-1:1.0 eth2: ax88179 - Link status is: 1
    169 |ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
    616 |ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1

     60 |ax88179_178a 9-1:1.0 eth2: kevent 4 may have been dropped
    111 |ax88179_178a 9-2:1.0 eth2: kevent 4 may have been dropped
    236 |ax88179_178a 9-1:1.0 eth2: ax88179 - Link status is: 1
    425 |ax88179_178a 9-2:1.0 eth2: ax88179 - Link status is: 1

* mii-tool performance

eth1 is on-board Ethernet.
eth2 is USB device to be tested.

2014y01m23d-22h20m27s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  283  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 100baseTx-FD, link ok

real	0m0.068s
user	0m0.000s
sys	0m0.020s

2014y01m23d-22h21m51s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  284  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 100baseTx-FD, link ok

real	0m0.077s
user	0m0.004s
sys	0m0.012s

2014y01m23d-22h22m21s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  285  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 100baseTx-FD, link ok

real	0m0.071s
user	0m0.016s
sys	0m0.012s

2014y01m23d-22h22m22s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  286  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 100baseTx-FD, link ok

real	0m0.071s
user	0m0.012s
sys	0m0.016s

2014y01m23d-22h22m22s+0100Z  1707 pts/3 jobs:0 rc=0
(unplugged from 100Mbit Ethernet router, plugged on another gigabit Ethernet capable machine)

$ time sudo mii-tool

  287  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m35.081s
user	0m0.008s
sys	0m0.012s

2014y01m23d-22h23m35s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  288  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: 1000 Mbit, full duplex, no link

real	0m44.216s
user	0m0.016s
sys	0m0.016s

NOTICE the word "negociated" missing above ?

2014y01m23d-22h24m43s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  289  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m28.936s
user	0m0.016s
sys	0m0.012s

2014y01m23d-22h25m27s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  290  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m0.065s
user	0m0.008s
sys	0m0.012s

2014y01m23d-22h25m32s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  291  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m0.072s
user	0m0.004s
sys	0m0.020s

2014y01m23d-22h25m34s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  292  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m0.069s
user	0m0.008s
sys	0m0.016s

2014y01m23d-22h25m35s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  293  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m0.069s
user	0m0.008s
sys	0m0.020s

2014y01m23d-22h25m35s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  294  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m37.694s
user	0m0.008s
sys	0m0.016s

2014y01m23d-22h26m16s+0100Z  1707 pts/3 jobs:0 rc=0
$ time sudo mii-tool

  295  time sudo mii-tool

eth1: negotiated 100baseTx-FD, link ok
eth2: negotiated 1000baseT-FD flow-control, link ok

real	0m0.067s
user	0m0.008s
sys	0m0.016s




[X.] Other notes, patches, fixes, workarounds:

* Workaround : plug the device on a USB2 port. Performance may be reduced (not measured).

* Note : bug reported first on https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1269883 where The Ubuntu Bug Control team asked me to report here. Downstream bug report focuses on the first machine.