FreeBSD 版本：10.3 Seagate 硬盘型号：SRD00F1 USB 3.0 适配器：Insignia USB 3.0 PCIe 主机卡（NS-PCCUP53）
当我重新启动已连接的驱动器时，它没有出现。但是，当我连接驱动器时，我在 dmesg.today 中看到以下内容：
ugen5.2: at usbus5
umass0: on usbus5
umass0: SCSI over Bulk-Only; quirks = 0x0100
umass0:5:0:-1: Attached to scbus5
da0 at umass-sim0 bus 0 scbus5 target 0 lun 0
da0: Fixed Direct Access SPC-4 SCSI device
da0: Serial Number NA7WF86H
da0: 40.000MB/s transfers
da0: 953869MB (1953525167 512 byte sectors)
da0: quirks=0x2
ugen5.2: at usbus5 (disconnected)
umass0: at uhub5, port 2, addr 2 (disconnected)
da0 at umass-sim0 bus 0 scbus5 target 0 lun 0
da0: s/n NA7WF86H detached
(da0:umass-sim0:0:0:0): Periph destroyed
usb_alloc_device: set address 2 failed (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 2 failed, USB_ERR_IOERROR
usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 2 failed, USB_ERR_IOERROR
usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 2 failed, USB_ERR_IOERROR
usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 2 failed, USB_ERR_IOERROR
usbd_req_re_enumerate: addr=2, set address failed! (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 2 failed, USB_ERR_IOERROR
ugen0.2: at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
usbd_req_re_enumerate: addr=1, set address failed! (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 1 failed, USB_ERR_IOERROR
usb_alloc_device: Failure selecting configuration index 0:USB_ERR_TIMEOUT, port 2, addr 1 (ignored)
ugen0.2: at usbus0
ugen0.2: at usbus0 (disconnected)
usbd_req_re_enumerate: addr=1, set address failed! (USB_ERR_IOERROR, ignored)
usbd_setup_device_desc: getting device descriptor at addr 1 failed, USB_ERR_IOERROR
usb_alloc_device: Failure selecting configuration index 0:USB_ERR_TIMEOUT, port 2, addr 1 (ignored)
ugen0.2: at usbus0
ugen0.2: at usbus0 (disconnected)
usb_alloc_device: Failure selecting configuration index 0:USB_ERR_TIMEOUT, port 2, addr 1 (ignored)
ugen0.2: at usbus0
任何帮助都将不胜感激！
答案1
更换 PCIe 插槽，然后用完全相同的型号更换 USB 3.0 卡，但无济于事。然后我尝试禁用板载 USB（2.0），这解决了我的问题。FreeBSD 似乎与 USB 2.0 和 USB 3.0 存在冲突。