Hello, I have a BUG on USB xhci. The trace here : [11518.982950] xhci_hcd 0000:07:00.0: Stopped the command ring failed, maybe the host is dead [11519.027106] xhci_hcd 0000:07:00.0: Host halt failed, -110 [11519.027108] xhci_hcd 0000:07:00.0: Abort command ring failed [11519.027215] xhci_hcd 0000:07:00.0: HC died; cleaning up [11519.027230] xhci_hcd 0000:07:00.0: Timeout while waiting for setup device command [11519.442303] usb 3-1: device not accepting address 15, error -108 [11519.442324] usb usb3-port1: couldn't allocate usb_device After this error happens, I have to reboot Linux. Without reboot the USB port doesn't work for any devices. The situation. uname -a : Linux shal 4.10.0-8-generic #10-Ubuntu SMP Mon Feb 13 14:04:59 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux Part of lspci: 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05) 07:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller # lsusb Bus 002 Device 004: ID 0582:0044 Roland Corp. EDIROL UA-1000 Bus 002 Device 003: ID 046d:c52e Logitech, Inc. MK260 Wireless Combo Receiver Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Note that I have booted with the GRUB Option : GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore.old_scheme_first=1" I work with an old Android smartphone in fastboot mode. The smartphone is connected with a long USB cable (5m). In fastboot mode (and only with this mode), the devices is not reachable . There is error like this : usb 3-1: device not accepting address 12, error -71 So, I had "usbcore.old_scheme_first=1" in kernel command option and then I can reach the device in fastboot mode. But I performs some operation on the smartphone and sometime the device hung . In this case, my USB port hung too and it is impossible to connect any devices on it (smartphone or usb key for e.g). I have to reboot my Linux, in order to have USB port working again.... Note that, during operation the entire Linux freeze few seconds... My question : - There is a method to avoid that my USB port hung - If not, there is a method to have a working usb port without rebooting ? Thank More traces: [11466.611552] usb 3-1: USB disconnect, device number 11 [11468.957608] usb 3-1: new high-speed USB device number 12 using xhci_hcd [11470.878811] usb 3-1: Device not responding to setup address. [11486.881738] usb 3-1: Device not responding to setup address. [11487.088447] usb 3-1: device not accepting address 12, error -71 [11487.532378] usb 3-1: new high-speed USB device number 14 using xhci_hcd [11487.559735] usb 3-1: unable to get BOS descriptor [11487.564929] usb 3-1: New USB device found, idVendor=18d1, idProduct=d00d [11487.564932] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [11487.564934] usb 3-1: Product: Android [11487.564935] usb 3-1: Manufacturer: Google [11489.585534] usb 3-1: USB disconnect, device number 14 [11491.748090] usb 3-1: new high-speed USB device number 15 using xhci_hcd [11518.982950] xhci_hcd 0000:07:00.0: Stopped the command ring failed, maybe the host is dead [11519.027106] xhci_hcd 0000:07:00.0: Host halt failed, -110 [11519.027108] xhci_hcd 0000:07:00.0: Abort command ring failed [11519.027215] xhci_hcd 0000:07:00.0: HC died; cleaning up [11519.027230] xhci_hcd 0000:07:00.0: Timeout while waiting for setup device command [11519.442303] usb 3-1: device not accepting address 15, error -108 [11519.442324] usb usb3-port1: couldn't allocate usb_device -- 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
