このリセットを解決するには？
Debian サーバーです。コンソール/システムログに永続的で繰り返しメッセージがあります。
kernel: usb 1-7.4: reset low-speed USB device number 4 using xhci_hcd
このデバイスはIPMIの仮想キーボードとマウスであることがわかっています。 IPMIをリセットすると、次のログエントリが表示されますが、しばらくすると問題が再発生します。
kernel: usb 1-7.3: USB disconnect, device number 3
kernel: cdc_ether 1-7.3:2.0 enXXXXX: unregister 'cdc_ether' usb-0000:02:00.0-7.3, CDC Ethernet Device
kernel: usb 1-7.4: USB disconnect, device number 4
kernel: usb 1-7: USB disconnect, device number 2
kernel: usb 1-7: new high-speed USB device number 5 using xhci_hcd
kernel: usb 1-7: New USB device found, idVendor=046b, idProduct=ff01, bcdDevice= 1.00
kernel: usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: usb 1-7: Product: Virtual Hub
kernel: usb 1-7: Manufacturer: American Megatrends Inc.
kernel: usb 1-7: SerialNumber: serial
kernel: hub 1-7:1.0: USB hub found
kernel: hub 1-7:1.0: 5 ports detected
kernel: usb 1-7.3: new high-speed USB device number 6 using xhci_hcd
kernel: usb 1-7.3: New USB device found, idVendor=046b, idProduct=ffb0, bcdDevice= 1.00
kernel: usb 1-7.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
kernel: usb 1-7.3: Product: Virtual Ethernet
kernel: usb 1-7.3: Manufacturer: American Megatrends Inc.
kernel: usb 1-7.3: SerialNumber: 1234567890
kernel: cdc_ether 1-7.3:2.0 usb0: register 'cdc_ether' at usb-0000:02:00.0-7.3, CDC Ethernet Device, 00:00:00:00:00:00
systemd-udevd: Using default interface naming scheme 'v247'.
systemd-udevd: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
kernel: cdc_ether 1-7.3:2.0 enXXXXX: renamed from usb0
systemd-udevd: Using default interface naming scheme 'v247'.
systemd-udevd: ethtool: autonegotiation is unset or enabled, the speed and duplex are not writable.
kernel: usb 1-7.4: new low-speed USB device number 7 using xhci_hcd
kernel: usb 1-7.4: New USB device found, idVendor=046b, idProduct=ff10, bcdDevice= 1.00
kernel: usb 1-7.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
kernel: usb 1-7.4: Product: Virtual Keyboard and Mouse
kernel: usb 1-7.4: Manufacturer: American Megatrends Inc.
kernel: input: American Megatrends Inc. Virtual Keyboard and Mouse as /devices/pci0000:00/0000:00:01.2/0000:02:00.0/usb1/1-7/1-7.4/1-7.4:1.0/0003:046B:FF10.0003/input/input5
kernel: hid-generic 0003:046B:FF10.0003: input,hidraw0: USB HID v1.10 Keyboard [American Megatrends Inc. Virtual Keyboard and Mouse] on usb-0000:02:00.0-7.4/input0
kernel: input: American Megatrends Inc. Virtual Keyboard and Mouse as /devices/pci0000:00/0000:00:01.2/0000:02:00.0/usb1/1-7/1-7.4/1-7.4:1.1/0003:046B:FF10.0004/input/input6
kernel: hid-generic 0003:046B:FF10.0004: input,hidraw1: USB HID v1.10 Mouse [American Megatrends Inc. Virtual Keyboard and Mouse] on usb-0000:02:00.0-7.4/input1
systemd-logind: Watching system buttons on /dev/input/event2 (American Megatrends Inc. Virtual Keyboard and Mouse)
これはリセットされますが、IPMIリセット後に割り当てられた新しいデバイス番号が反映されます。
kernel: usb 1-7.4: reset low-speed USB device number 7 using xhci_hcd
これが出力ですlsusb。 IPMI コンポーネントは USB 専用デバイスです。
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 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 046b:ff10 American Megatrends, Inc. Virtual Keyboard and Mouse
Bus 001 Device 006: ID 046b:ffb0 American Megatrends, Inc. Virtual Ethernet
Bus 001 Device 005: ID 046b:ff01 American Megatrends, Inc. Virtual Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub