Hi Sarah, Hi USB hackers, On my Samsung series 5 NP530U4E laptop using a Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller, running vanilla kernel 3.8.7, I'm getting the following warning about xHCI in my logs, repeated every 5 seconds or so: [ 430.417058] xhci_queue_intr_tx: 71 callbacks suppressed [ 435.536523] xhci_queue_intr_tx: 71 callbacks suppressed [ 440.656078] xhci_queue_intr_tx: 72 callbacks suppressed [ 445.707630] xhci_queue_intr_tx: 70 callbacks suppressed [ 450.811155] xhci_queue_intr_tx: 72 callbacks suppressed So far, I haven't encoutered any actual problem using the USB 3.0 port on this machine, so I don't know if this warning is serious or not. Anyway, the fact that it's flooding my logs is a bit annoying. Attached are the outputs of lsusb -vvv, lspci -vvv and dmesg -x from boot time to the first few occurences of this warning when the system has finisched booting. For the later, I recompiled my kernel with CONFIG_USB_DEBUG and CONFIG_USB_XHCI_HCD_DEBUGGING turned on. (I zipped the files since dmesg output is quite big and I'm not sure about attachement size limit on this list.) Please let me know if you need any additional information, and thank you for your attention. Best regards, Manuel. PS: please keep me Cc'ed in your replies, I didn't susbscribe to the list.
<<attachment: lspci-lsusb-dmeg.zip>>
