On Sun, Aug 04, 2024 at 09:15:34AM +0200, Paul Menzel wrote: > [To: +Heikki] > > > Dear Alan, dear Heikki, > > > Am 26.07.24 um 19:48 schrieb Alan Stern: ... > > It's probably an xHCI thing -- the hardware may stop providing power to > > the ports during S3 suspend, or something like that. The xHCI people > > may have a better idea of what's going on. > > Heikki, can you confirm this. I am attaching the logs with You should be asking Mathias, the xHCI maintainer. > echo 'file drivers/usb/* +p' | sudo tee > /sys/kernel/debug/dynamic_debug/control ... > [ 149.185600] usb 1-3: usb suspend, wakeup 0 > [ 149.185642] xhci_hcd 0000:00:14.0: Cancel URB 000000003e45896a, dev 4, ep 0x81, starting at offset 0x102ef1010 > [ 149.185661] usb usb2: usb auto-resume > [ 149.185664] xhci_hcd 0000:00:14.0: // Ding dong! > [ 149.185736] xhci_hcd 0000:00:14.0: Stopped on Transfer TRB for slot 2 ep 2 > [ 149.185745] xhci_hcd 0000:00:14.0: Removing canceled TD starting at 0x102ef1010 (dma) in stream 0 URB 000000003e45896a > [ 149.185753] xhci_hcd 0000:00:14.0: Set TR Deq ptr 0x102ef1020, cycle 1 > > [ 149.185757] xhci_hcd 0000:00:14.0: // Ding dong! > [ 149.185763] xhci_hcd 0000:00:14.0: xhci_giveback_invalidated_tds: Keep cancelled URB 000000003e45896a TD as cancel_status is 2 > [ 149.185770] xhci_hcd 0000:00:14.0: Successful Set TR Deq Ptr cmd, deq = @102ef1020 > [ 149.185775] xhci_hcd 0000:00:14.0: xhci_handle_cmd_set_deq: Giveback cancelled URB 000000003e45896a TD > [ 149.185780] xhci_hcd 0000:00:14.0: Giveback URB 000000003e45896a, len = 0, expected = 116, status = -115 > [ 149.185788] xhci_hcd 0000:00:14.0: xhci_handle_cmd_set_deq: All TDs cleared, ring doorbell > [ 149.185810] hub 2-0:1.0: hub_resume > [ 149.185816] usb 1-4: usb suspend, wakeup 0 > [ 149.185840] hub 1-0:1.0: hub_suspend > [ 149.185865] usb usb1: bus suspend, wakeup 0 > [ 149.185894] xhci_hcd 0000:00:14.0: port 1-4 not suspended > [ 149.185899] xhci_hcd 0000:00:14.0: port 1-3 not suspended I have to wonder why xhci-hcd says ports 1-3 and 1-4 are not suspended, when only a few lines earlier the log says that devices 1-3 and 1-4 have gone into USB suspend. Alan Stern
