-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On Mon, 2016-08-22 at 11:24 +0300, Mathias Nyman wrote: > * A few disconnects, were these real disconnects done by you?: No. Nothing was even plugged into the USB ports. And the resets keep recurring. > Aug 18 23:55:57 learner kernel: usb 1-4: USB disconnect, device number 27 > Aug 18 23:55:58 learner kernel: usb 1-4: new high-speed USB device number 28 > using xhci_hcd > .. > Aug 18 23:56:18 learner kernel: usb 1-4: USB disconnect, device number 28 > Aug 18 23:56:20 learner kernel: usb 1-4: new high-speed USB device number 32 > using xhci_hcd > .. > Aug 18 23:56:21 learner kernel: usb 1-4: USB disconnect, device number 32 > Aug 18 23:56:21 learner kernel: usb 1-4: new high-speed USB device number 34 > using xhci_hcd > > * A bit unclean resume for some of the devices: > The only thing I have enabled is Runtime PM. When this device started reporting problems (happens occasionally), I even blacklisted the particular device USB ID to not enable power savings. But that hasn't helped much. > Aug 19 14:22:32 learner kernel: xhci_hcd 0000:00:14.0: port 7 resume PLC > timeout > Aug 19 14:22:32 learner kernel: xhci_hcd 0000:00:14.0: port 4 resume PLC > timeout > Aug 19 14:22:32 learner kernel: xhci_hcd 0000:00:14.0: port 3 resume PLC > timeout > Aug 19 14:22:32 learner kernel: rtc_cmos 00:01: System wakeup disabled by > ACPI > > * Problems in reading device descriptors and addressing the device: > > Aug 19 14:22:37 learner kernel: usb 1-4: device descriptor read/64, error -71 > Aug 19 14:22:37 learner kernel: usb 1-4: device descriptor read/64, error -71 > Aug 19 14:22:37 learner kernel: usb 1-4: new high-speed USB device number 48 > using xhci_hcd > Aug 19 14:22:37 learner kernel: usb 1-4: device descriptor read/64, error -71 > Aug 19 14:22:38 learner kernel: usb 1-4: device descriptor read/64, error -71 > Aug 19 14:22:38 learner kernel: usb 1-4: new high-speed USB device number 49 > using xhci_hcd > Aug 19 14:22:38 learner kernel: usb 1-4: Device not responding to setup > address. > Aug 19 14:22:38 learner kernel: usb 1-4: Device not responding to setup > address. > Aug 19 14:22:38 learner kernel: usb 1-4: device not accepting address 49, > error -71 > Aug 19 14:22:38 learner kernel: usb 1-4: new high-speed USB device number 50 > using xhci_hcd > Aug 19 14:22:38 learner kernel: usb 1-4: Device not responding to setup > address. > Aug 19 14:22:39 learner kernel: usb 1-4: Device not responding to setup > address. > Aug 19 14:22:39 learner kernel: usb 1-4: device not accepting address 50, > error -71 > Aug 19 14:22:39 learner kernel: usb usb1-port4: unable to enumerate USB device > > * And at the end we it looks like we get stuck at a halted endpoint. Every URB > to that endpoint > is canceled. Either we fail at noticing and clearing the halt, or then the > endpoint halts again > at every transfer. > > Aug 19 15:46:11 learner kernel: xhci_hcd 0000:00:14.0: Cancel URB > ffff88020bb4b000, dev 4, ep 0x1, starting at offset 0x9a2b2830 > Aug 19 15:46:11 learner kernel: xhci_hcd 0000:00:14.0: // Ding dong! > Aug 19 15:46:11 learner kernel: xhci_hcd 0000:00:14.0: Removing canceled TD > starting at 0x9a2b2830 (dma). > Aug 19 15:46:11 learner kernel: xhci_hcd 0000:00:14.0: TRB to noop at offset > 0x9a2b2830 > Aug 19 15:46:12 learner kernel: xhci_hcd 0000:00:14.0: WARN halted endpoint, > queueing URB anyway. > Aug 19 15:46:12 learner kernel: xhci_hcd 0000:00:14.0: ep 0x81 - asked for 37 > bytes, 27 bytes untransferred > Aug 19 15:46:12 learner kernel: xhci_hcd 0000:00:14.0: Cancel URB > ffff880182e41180, dev 4, ep 0x1, starting at offset 0x9a2b2840 > Aug 19 15:46:12 learner kernel: xhci_hcd 0000:00:14.0: // Ding dong! > Aug 19 15:46:12 learner kernel: xhci_hcd 0000:00:14.0: Removing canceled TD > starting at 0x9a2b2840 (dma). > > A usbmon log (together with a dmesg) could give some more clues > see Documentation/usb/usbmon.txt > I'll post back again once I have captured the relevant logs. Thank you for looking into this. Ritesh - -- Ritesh Raj Sarraf RESEARCHUT - http://www.researchut.com "Necessity is the mother of invention." -----BEGIN PGP SIGNATURE----- iQIcBAEBCgAGBQJXuvLmAAoJEKY6WKPy4XVp6GMP/1ZdsyKUtckHSfwKhQ1Z1H9P rXZ7c/OkcKqI7ZO6TXCqpaFuHyZQ3P7QkXpGz3vjhngTpuzbc/IMbrRYjacXp4dJ RZS8DWfGcF9PDV/w6aiM1wnT/yPCOkMGm7Q3XU1rKbwm0oSjpqRRXGcw+n9qiCwy ItTvoqEz2RWgOPNXEtNGPHgdaUZQlnM7fTiwP+DCYrNUNbnVeRpSo4KKK/J4dp9f 7rWqMkZZt14v3XItB+W/DKpUfWs7ex9Cufxe0ChkjxjLdqwggkYM8vpkoxbel1gA kc1IfOHAgDy27dcZ5pMVmrXrjSPgYMroYZ7lGDeG1TAfMzJOeBTpxyp7lLiGx70k WRZqwvTUZfed6/lX/B2OoSBNnHSSDZhEkUiW/8vkCIvDw5p6ubcAS99TXIV5Id+Z niIQ1cWOo6cHq9phps5ApV5+EPaV1blSQAQVY6icg+3aM6shH4srPiI6jEFyeK4B FAAKafA85E31ZYaZ9U3Dm9Gv9ZCf8VzGOqJNDgQsxXUeoXN9sDR0NWj3GukKxPwD 9AMNaQeACCqoUEgURbeb681HMCb9X/nC0mPJjb5mfz2B+kn2HH17HgFRjLgPeMES QfAPhsRPBQWM0mRvGegUzk0SG4/+aX93Ii4DVXeYJdzjvhmNeQ0+hlUDlf2MyJn/ grz6gg4im5fJ4dnXp8b5 =J8Y/ -----END PGP SIGNATURE----- -- 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
