[Bug 237666] repeated messages of "uhub_reattach_port: giving up port reset - device vanished"

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237666

--- Comment #125 from Bjoern A. Zeeb <bz at FreeBSD.org> ---
(In reply to Hans Petter Selasky from comment #122)

Hmm, I applied the sysctl and removed the USB-C connection again and:

uhub0: detached
ugen0.1: <0x8086 XHCI root HUB> at usbus0 (disconnected)
unknown: at usbus0, port 1, addr 1 (disconnected)
usbus0: detached
xhci0: Controller reset timeout.
xhci0: detached
pci8: detached
pcib8: detached
pci7: detached
pcib7: detached
pci6: detached
pcib6: detached
pci5: detached
pcib5: detached


All the stuff went away :-)

Set the sysctl hw.usb.disable_enumeration=0

and plugged it back in:

pcib5: <ACPI PCI-PCI bridge> at device 0.0 on pci4
pci5: <ACPI PCI bus> on pcib5
pcib6: <PCI-PCI bridge> at device 0.0 on pci5
pci6: <PCI bus> on pcib6
pcib7: <PCI-PCI bridge> at device 1.0 on pci5
pci7: <PCI bus> on pcib7
pcib8: <ACPI PCI-PCI bridge> at device 2.0 on pci5
pci8: <ACPI PCI bus> on pcib8
xhci0: <XHCI (generic) USB 3.0 controller> mem 0xd9f00000-0xd9f0ffff at device
0.0 on pci8
xhci0: 32 bytes context size, 64-bit DMA
usbus0 on xhci0
usbus0: 5.0Gbps Super Speed USB v3.0
ugen0.1: <0x8086 XHCI root HUB> at usbus0
uhub0 on usbus0
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 4 ports with 4 removable, self powered
xhci0: Resetting controller
usb_alloc_device: device init 2 failed (USB_ERR_TIMEOUT, ignored)
ugen0.2: <Unknown > at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
usb_alloc_device: device init 2 failed (USB_ERR_TIMEOUT, ignored)
ugen0.2: <Unknown > at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
uhub0: at usbus0, port 1, addr 1 (disconnected)
uhub0: detached
uhub0 on usbus0
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 4 ports with 4 removable, self powered
xhci0: Resetting controller
usb_alloc_device: device init 2 failed (USB_ERR_TIMEOUT, ignored)
ugen0.2: <Unknown > at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
usb_alloc_device: device init 2 failed (USB_ERR_TIMEOUT, ignored)
ugen0.2: <Unknown > at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
uhub0: at usbus0, port 1, addr 1 (disconnected)
uhub0: detached
uhub0 on usbus0
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
uhub0: 4 ports with 4 removable, self powered
xhci0: Resetting controller
usb_alloc_device: device init 2 failed (USB_ERR_TIMEOUT, ignored)
ugen0.2: <Unknown > at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
usb_alloc_device: device init 2 failed (USB_ERR_TIMEOUT, ignored)
ugen0.2: <Unknown > at usbus0 (disconnected)
uhub_reattach_port: could not allocate new device
uhub0: at usbus0, port 1, addr 1 (disconnected)
uhub0: detached
uhub0 on usbus0
uhub0: <0x8086 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
...
(and so on)

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