On 04.02.2019 18:30, Eric Blau wrote:
On Mon, Feb 4, 2019 at 10:49 AM Mathias Nyman
<mathias.nyman@xxxxxxxxxxxxxxx> wrote:
On 04.02.2019 17:27, Alan Stern wrote:
I would prefer to see the underlying cause for this problem figured
out. Why is the USB3 port stuck in polling mode? Is it a hardware
issue or a software bug?
More detailed debugging logs might help.
Sure, please see the requested logs attached. Thanks for taking a look.
Thanks
journalctl.log shows port 2 is in Polling state (2e0), and stays there,
but no reason why, or how it ended up there.
Feb 04 11:19:03 eric-macbookpro kernel: usb usb2: bus suspend, wakeup 0
Feb 04 11:19:03 eric-macbookpro kernel: xhci_hcd 0000:00:14.0: Bus suspend bailout, port in polling
Feb 04 11:19:03 eric-macbookpro kernel: usb usb2: bus suspend fail, err -16
Feb 04 11:19:03 eric-macbookpro kernel: hub 2-0:1.0: hub_resume
Feb 04 11:19:03 eric-macbookpro kernel: xhci_hcd 0000:00:14.0: get port status, actual port 2 status = 0xe0002e0
Feb 04 11:19:03 eric-macbookpro kernel: xhci_hcd 0000:00:14.0: Get port status returned 0x2e0
Same with xhci_hcd_trace.log, port is in polling state since the beginning of the log.
Can you check the port states before first system suspend attempt:
cat /sys/kernel/debug/usb/xhci/0000\:00\:14.0/ports/port*/portsc
-Mathias
