Hi Sarah, in this particular thread, the USB3 socket of the laptop works once I plugin a device. When I unplug it and insert same or another device it appears to be dead until I use 'lsusb -vvv'. After that, I see in dmesg the two lines: [ 1445.597641] pcieport 0000:00:1c.4: PME# disabled [ 1445.617667] xhci_hcd 0000:0b:00.0: PME# disabled That's the whole story. Thank you, Martin Sarah Sharp wrote: > Hi Martin, > > I'm really having trouble following you here. Please don't try to tell > me what you think the root cause of the issue is. Just tell me exactly > (in a paragraph or less) what your symptoms are. > > Sending lots of log files and lsusb output at me isn't helpful if I > don't know what your issue is. > > Sarah Sharp > > On Thu, Mar 14, 2013 at 06:30:53PM +0100, Martin Mokrejs wrote: >> [resend, no dmesg attached] >> >> Hi, >> happened to me again that I plugged in some devcie into my USB3 socket >> in my laptop (usually use an external HUB). Don't believe this is a new >> issue as a whole, I am facing this time to time since 3.3 time when I bought >> the laptop. >> But now, I realized the first device works but subsequently plugged in >> devices do not show up until until I run 'lsusb -vv'. Simple 'lsusb -v' >> or 'lsusb -t' is not enough. The port starts to work after dmesg logs: >> >> >> [ 1445.597641] pcieport 0000:00:1c.4: PME# disabled >> [ 1445.617667] xhci_hcd 0000:0b:00.0: PME# disabled >> >> I believe lsusb -vv while querying for the detailed device info triggers >> a fix. >> >> Funny, but maybe this will help us to understand why my express card slot >> somehow relates to the USB3 proivided by the TexasInstruments chip. This >> is a SandyBridge-based Dell Vostro 3550 laptop. I should add that on the usb >> mailing list about a year ago some TexasInstruments developer published that >> they had a hardware bug in a "USB redriver", and as my laptop was made in >> fall 2011 I am likely having having the buggy HW. If I remember right, the >> report was about the problem that once you pluging a USB2 device into the XHCI >> slot, subsequently plugged in USB3 devices won't negotiate at SuperSpeed until >> you power off computer. So, I think I face a different issue but had to mention >> this. >> >> I use pcie_aspm=off on my kernel command line. I tried to catch some usb traffic >> on the dead port but the file from usbmon is really empty until I do the >> 'lsusb -vv'. I tried to turn off the usb powersaving at runtime but I do not >> have the file to do: >> >> # echo -n -1 > /sys/bus/usb/devices/3-0\:1.0/power/autosuspend >> >> :( >> >> # ls -la /sys/bus/usb/devices/3-0\:1.0/power/ >> total 0 >> drwxr-xr-x 2 root root 0 Mar 14 13:11 . >> drwxr-xr-x 6 root root 0 Mar 14 13:58 .. >> -rw-r--r-- 1 root root 4096 Mar 14 13:11 async >> -r--r--r-- 1 root root 4096 Mar 14 13:11 runtime_active_kids >> -r--r--r-- 1 root root 4096 Mar 14 13:11 runtime_enabled >> -r--r--r-- 1 root root 4096 Mar 14 13:11 runtime_status >> -r--r--r-- 1 root root 4096 Mar 14 13:11 runtime_usage >> # >> >> I feel related could be patches under thread: "usb: add usb port auto power off mechanism" >> >> >> Below is a dmesg since a cold boot. I plugged in a mouse into the USB3 socket. >> >> [ 91.463285] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 >> [ 91.463377] xhci_hcd 0000:0b:00.0: PME# enabled >> [ 447.389700] xhci_hcd 0000:0b:00.0: PME# disabled >> [ 447.389711] xhci_hcd 0000:0b:00.0: enabling bus mastering >> [ 447.389787] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 >> [ 447.389819] usb usb3: usb wakeup-resume >> >> Was detected. Unplugged the mouse. >> >> [ 459.600056] usb 3-2: USB disconnect, device number 2 >> [ 459.600058] usb 3-2: unregistering device >> [ 459.600059] usb 3-2: unregistering interface 3-2:1.0 >> [ 459.600622] xhci_hcd 0000:0b:00.0: shutdown urb ffff88040a641870 ep1in-intr >> [ 459.702564] usb 3-2: usb_disable_device nuking all URBs >> [ 459.707948] usb 3-2: Successful Endpoint Configure command >> [ 459.860892] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 >> [ 459.860910] hub 3-0:1.0: hub_suspend >> [ 459.860917] usb usb3: bus auto-suspend, wakeup 1 >> [ 459.860981] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 >> [ 459.861070] xhci_hcd 0000:0b:00.0: PME# enabled >> >> Then I put the mouse back, I think it was not detected after until I did the lsusb >> trick. I am not sure, sorry, but is not that important. I was repeating test once >> again and just forgot now this detail. So below just that the mouse got detected, >> either thanks to lsusb -vv or not. >> >> [ 536.745422] xhci_hcd 0000:0b:00.0: PME# disabled >> [ 536.745435] xhci_hcd 0000:0b:00.0: enabling bus mastering >> [ 536.745487] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 >> [ 536.745493] usb usb3: usb auto-resume >> [ 536.745509] hub 3-0:1.0: hub_resume >> [ 536.745579] hub 3-0:1.0: port 2: status 0301 change 0001 >> >> Then a mouse disconnect: >> >> [ 652.232958] usb 3-2: USB disconnect, device number 3 >> [ 652.232960] usb 3-2: unregistering device >> [ 652.232961] usb 3-2: unregistering interface 3-2:1.0 >> [ 652.233148] xhci_hcd 0000:0b:00.0: shutdown urb ffff88040b1ee288 ep1in-intr >> [ 652.333325] usb 3-2: usb_disable_device nuking all URBs >> [ 652.337096] usb 3-2: Successful Endpoint Configure command >> [ 652.492164] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 >> [ 652.492183] hub 3-0:1.0: hub_suspend >> [ 652.492190] usb usb3: bus auto-suspend, wakeup 1 >> [ 652.492254] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 >> [ 652.492341] xhci_hcd 0000:0b:00.0: PME# enabled >> [ 652.522157] pcieport 0000:00:1c.4: PME# enabled >> >> [ 688.128198] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) >> >> Note above two things pcieport started to mess in. I you look what xhci_hcd printed >> in previous attempts the was NO pcieport involved around, at all. Now, provided >> that I reported the kmemleak multiple times this year: >> >> unreferenced object 0xffff88040b4a0690 (size 256): >> comm "swapper/0", pid 1, jiffies 4294937581 (age 17428.760s) >> hex dump (first 32 bytes): >> 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... >> ff ff ff ff ff ff ff ff d8 9f 57 82 ff ff ff ff ..........W..... >> backtrace: >> [<ffffffff815fcec7>] kmemleak_alloc+0x21/0x3e >> [<ffffffff81117ac4>] slab_post_alloc_hook+0x28/0x2a >> [<ffffffff8111a18f>] __kmalloc+0xf3/0x105 >> [<ffffffff8132b20c>] kzalloc.constprop.14+0xe/0x10 >> [<ffffffff8132b66d>] device_private_init+0x14/0x63 >> [<ffffffff8132d790>] dev_set_drvdata+0x19/0x2f >> [<ffffffff813f19d1>] i801_probe+0x5e/0x41a >> [<ffffffff812924d8>] local_pci_probe+0x39/0x61 >> [<ffffffff812936fb>] pci_device_probe+0xc6/0xf3 >> [<ffffffff8132dd59>] driver_probe_device+0xa9/0x1c1 >> [<ffffffff8132decb>] __driver_attach+0x5a/0x7e >> [<ffffffff8132c5f3>] bus_for_each_dev+0x5c/0x88 >> [<ffffffff8132d8f6>] driver_attach+0x19/0x1b >> [<ffffffff8132d4c6>] bus_add_driver+0xa8/0x1fa >> [<ffffffff8132e33d>] driver_register+0x8c/0x106 >> [<ffffffff812932f6>] __pci_register_driver+0x5c/0x60 >> >> I believe this is related to the issue, somehow. >> >> Now I started usbmon, so lets follow another attempt to repeat the bug. For clarity, >> I will plug into the socket a kayboard, and it won't work until I do 'lsusb -vv'. >> I pressed then space on the keyboard and that worked immediately (keyboard was dead >> until lsusb -vv and also dmesg did not log anything). >> >> So, lsusb -vv: >> >> [ 802.986036] pcieport 0000:00:1c.4: PME# disabled >> [ 803.016008] xhci_hcd 0000:0b:00.0: PME# disabled >> [ 803.016021] xhci_hcd 0000:0b:00.0: enabling bus mastering >> [ 803.016078] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 >> [ 803.016085] usb usb3: usb auto-resume >> [ 803.016103] hub 3-0:1.0: hub_resume >> [ 803.016172] hub 3-0:1.0: port 2: status 0301 change 0001 >> >> unplug of the keyboard: >> >> [ 821.621331] usb usb4: usb auto-resume >> [ 821.621347] hub 4-0:1.0: hub_resume >> [ 821.621405] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000 >> [ 821.622047] hub 4-0:1.0: hub_suspend >> [ 821.622053] usb usb4: bus auto-suspend, wakeup 1 >> [ 967.433533] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0004 >> [ 967.433768] hub 3-0:1.0: port 2, status 0100, change 0001, 12 Mb/s >> [ 967.433771] usb 3-2: USB disconnect, device number 4 >> [ 967.433772] usb 3-2: unregistering device >> [ 967.433775] usb 3-2: unregistering interface 3-2:1.0 >> [ 967.433946] xhci_hcd 0000:0b:00.0: shutdown urb ffff88040a641948 ep1in-intr >> [ 967.579130] usb 3-2: usb_disable_device nuking all URBs >> [ 967.584494] usb 3-2: Successful Endpoint Configure command >> [ 967.798027] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 >> [ 967.798046] hub 3-0:1.0: hub_suspend >> [ 967.798075] usb usb3: bus auto-suspend, wakeup 1 >> [ 967.798155] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 >> [ 967.798242] xhci_hcd 0000:0b:00.0: PME# enabled >> [ 967.828015] pcieport 0000:00:1c.4: PME# enabled >> >> >> You see? pcieport is messing with >> 00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5) (prog-if 00 [Normal decode]) >> >> I unplugged and replugged the keyboard multiple times and it did not work, so >> I connected the mouse used in the very beginning right after cold boot, still >> not working. But these were likely logged due to that. >> >> [ 1063.263014] pcieport 0000:00:1c.4: PME# disabled >> [ 1063.272918] pcieport 0000:00:1c.4: PME# enabled >> [ 1063.312915] pcieport 0000:00:1c.4: PME# disabled >> [ 1063.322906] pcieport 0000:00:1c.4: PME# enabled >> [ 1070.132666] pcieport 0000:00:1c.4: PME# disabled >> [ 1070.142559] pcieport 0000:00:1c.4: PME# enabled >> [ 1070.182601] pcieport 0000:00:1c.4: PME# disabled >> [ 1070.192644] pcieport 0000:00:1c.4: PME# enabled >> >> After doing 'lsusb -vv' I rescued the USB3 socket and it detected the mouse. >> >> [ 1108.504953] pcieport 0000:00:1c.4: PME# disabled >> [ 1108.525010] xhci_hcd 0000:0b:00.0: PME# disabled >> [ 1108.525023] xhci_hcd 0000:0b:00.0: enabling bus mastering >> [ 1108.525069] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 >> [ 1108.525075] usb usb3: usb auto-resume >> [ 1108.525094] hub 3-0:1.0: hub_resume >> [ 1108.525196] hub 3-0:1.0: port 2: status 0301 change 0001 >> >> I unplugged the mouse: >> >> [ 1230.618019] usb 3-2: unregistering device >> [ 1230.618020] usb 3-2: unregistering interface 3-2:1.0 >> [ 1230.618188] xhci_hcd 0000:0b:00.0: shutdown urb ffff88040b1ee288 ep1in-intr >> [ 1230.711764] usb 3-2: usb_disable_device nuking all URBs >> [ 1230.715101] usb 3-2: Successful Endpoint Configure command >> [ 1230.870763] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 >> [ 1230.870782] hub 3-0:1.0: hub_suspend >> [ 1230.870797] usb usb3: bus auto-suspend, wakeup 1 >> [ 1230.870862] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 >> [ 1230.870950] xhci_hcd 0000:0b:00.0: PME# enabled >> [ 1230.900730] pcieport 0000:00:1c.4: PME# enabled >> >> >> In summary, note that *immediately before the line* "xhci_hcd 0000:0b:00.0: PME# disabled" >> must appear "pcieport 0000:00:1c.4: PME# disabled". Don't know who is the blocker. >> But in reverse order the PME# are being enabled after a device is unplugged from the USB3 >> socket. >> >> During the tests I had an eSATA in the express card slot since cold boot but don't think >> it is relevant here. The express slot is 01.c7 device and the card would be 11.0. >> >> >> >> >> I will send to Alan and Sarah two files directly (thank you for their inspection): ;) >> >> The first part of testing is in usbmon_0u.bin (repeatedly connecting a mouse). >> >> The latter in usbmon_0u_mouse_unplug_keyboard_insert.bin. Both files should demonstrate >> the same issue although in the latter file it might be easier to see because the keyboard >> was plugged in after a mouse and was not detected until 'lsusb -vv'. >> >> >> >> >> >> Below is when a keyboard is connected to the dead USB3 socket: >> >> # diff -u -w lspci_vvvxxx_mouse_unplugged.txt lspci_vvvxxx_mouse_unplugged_keyboard_inserted.txt >> --- lspci_vvvxxx_mouse_unplugged.txt 2013-03-14 12:22:34.000000000 +0100 >> +++ lspci_vvvxxx_mouse_unplugged_keyboard_inserted.txt 2013-03-14 12:25:06.000000000 +0100 >> @@ -747,7 +747,7 @@ >> Region 2: Memory at f7d10000 (64-bit, non-prefetchable) [size=8K] >> Capabilities: [40] Power Management version 3 >> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=100mA PME(D0+,D1+,D2+,D3hot+,D3cold+) >> - Status: D3 NoSoftRst+ PME-Enable+ DSel=0 DScale=0 PME- >> + Status: D3 NoSoftRst+ PME-Enable+ DSel=0 DScale=0 PME+ >> Capabilities: [48] MSI: Enable- Count=1/8 Maskable- 64bit+ >> Address: 0000000000000000 Data: 0000 >> Capabilities: [70] Express (v2) Endpoint, MSI 00 >> @@ -785,7 +785,7 @@ >> 10: 04 00 d0 f7 00 00 00 00 04 00 d1 f7 00 00 00 00 >> 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 b3 04 >> 30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 01 00 00 >> -40: 01 48 83 fe 0b 01 00 00 05 70 86 00 00 00 00 00 >> +40: 01 48 83 fe 0b 81 00 00 05 70 86 00 00 00 00 00 >> 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >> 60: 30 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >> 70: 10 c0 02 00 c3 8f 90 05 00 20 19 00 12 3c 07 00 >> >> >> Now, when the port is rescued by lsusb -vv, the following can be seen: >> >> # diff -u -w lspci_vv_mouse_unplugged_keyboard_inserted.txt lspci_vv_mouse_unplugged_keyboard_inserted_kb_alive.txt >> --- lspci_vv_mouse_unplugged_keyboard_inserted.txt 2013-03-14 12:25:13.000000000 +0100 >> +++ lspci_vv_mouse_unplugged_keyboard_inserted_kb_alive.txt 2013-03-14 12:26:42.000000000 +0100 >> @@ -276,7 +276,7 @@ >> Capabilities: [90] Subsystem: Dell Device 04b3 >> Capabilities: [a0] Power Management version 2 >> Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) >> - Status: D3 NoSoftRst- PME-Enable+ DSel=0 DScale=0 PME- >> + Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- >> Kernel driver in use: pcieport >> >> 00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5) (prog-if 00 [Normal decode]) >> @@ -476,14 +476,15 @@ >> >> 0b:00.0 USB controller: Texas Instruments TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller (rev 02) (prog-if 30 [XHCI]) >> Subsystem: Dell Device 04b3 >> - Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ >> + 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 16 >> Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=64K] >> Region 2: Memory at f7d10000 (64-bit, non-prefetchable) [size=8K] >> Capabilities: [40] Power Management version 3 >> Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=100mA PME(D0+,D1+,D2+,D3hot+,D3cold+) >> - Status: D3 NoSoftRst+ PME-Enable+ DSel=0 DScale=0 PME+ >> + Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- >> Capabilities: [48] MSI: Enable- Count=1/8 Maskable- 64bit+ >> Address: 0000000000000000 Data: 0000 >> Capabilities: [70] Express (v2) Endpoint, MSI 00 >> # >> >> >> >> The difference in lsusb output is probably useless as it just shows that once the socket >> was working the keyboard was picked up by a driver. Looks like yet another PCI issue. >> At least no diffs in iomem. ;) >> >> >> Thanks, >> Martin >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-pci" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
