On Fri, 26 Aug 2016, Ritesh Raj Sarraf wrote: > I was able to reproduce the resets after disabling LPM too. > > [ 5026.849192] systemd[1]: apt-daily.timer: Adding 6h 13min 53.496331s random > time. > [ 5027.078155] systemd[1]: apt-daily.timer: Adding 5h 55min 19.813619s random > time. > [ 7375.350630] usb 1-4: USB disconnect, device number 11 > [ 7375.670070] usb 1-4: new high-speed USB device number 12 using xhci_hcd > [ 7375.843822] usb 1-4: New USB device found, idVendor=0bda, idProduct=0129 > [ 7375.843831] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 7375.843835] usb 1-4: Product: USB2.0-CRW > [ 7375.843839] usb 1-4: Manufacturer: Generic > [ 7375.843842] usb 1-4: SerialNumber: 20100201396000000 > [ 7379.920027] usb 1-4: USB disconnect, device number 12 > [ 7381.127199] usb 1-4: new high-speed USB device number 13 using xhci_hcd > [ 7381.300936] usb 1-4: New USB device found, idVendor=0bda, idProduct=0129 > [ 7381.300945] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 7381.300950] usb 1-4: Product: USB2.0-CRW > [ 7381.300953] usb 1-4: Manufacturer: Generic > [ 7381.300956] usb 1-4: SerialNumber: 20100201396000000 > [ 8596.938587] usb 1-8: USB disconnect, device number 6 > [ 8597.328597] usb 1-8: new full-speed USB device number 15 using xhci_hcd > [ 8597.513108] usb 1-8: New USB device found, idVendor=048d, idProduct=8350 > [ 8597.513116] usb 1-8: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > [ 8597.513121] usb 1-8: Product: ITE Device(8350) > [ 8597.513124] usb 1-8: Manufacturer: ITE Tech. Inc. > [ 8758.487792] usb 1-4: USB disconnect, device number 13 > [ 8759.711773] usb 1-4: new high-speed USB device number 16 using xhci_hcd > [ 8759.885543] usb 1-4: New USB device found, idVendor=0bda, idProduct=0129 > [ 8759.885552] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > [ 8759.885557] usb 1-4: Product: USB2.0-CRW > [ 8759.885560] usb 1-4: Manufacturer: Generic > [ 8759.885563] usb 1-4: SerialNumber: 20100201396000000 > 2016-08-26 / 14:39:39 ♒♒♒ ☺ Okay, I guess that's not too surprising. Most high-speed devices do not use LPM at all. So there must be some other cause. > rrs@learner:~$ uptime > 14:41:20 up 15:53, 1 user, load average: 0.54, 0.31, 0.38 > 2016-08-26 / 14:41:20 ♒♒♒ ☺ > > This time there's also another device resetting. > > Bus 001 Device 015: ID 048d:8350 Integrated Technology Express, Inc. It's hard to tell what that means. There's a small possibility that the xhci-hcd debugging information might help, if you have it enabled when a reset occurs. But I won't be able to interpret it; you'll need help from Mathias. Alan Stern -- 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
