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Date: Sun, 18 Jan 2015 00:08:18 -0600 From: Robert Hancock <hancockrwd@...il.com> To: linux-kernel <linux-kernel@...r.kernel.org>, Linux-usb <linux-usb@...r.kernel.org> Subject: 3.18 regression: Error while assigning device slot ID, USB3 devices not detected I've got an Intel Haswell-based system with a Gigabyte Z87X-D3H motherboard under Fedora 21. After updating to the 3.18.2-200 Fedora kernel, I noticed some errors in dmesg and at least some of my USB3 ports don't recognize any USB3 devices plugged into them: [ 0.560838] xhci_hcd 0000:00:14.0: Error while assigning device slot ID [ 0.560912] xhci_hcd 0000:00:14.0: Max number of devices this xHCI host supports is 32. [ 0.560990] usb usb2-port2: couldn't allocate usb_device [ 0.561098] xhci_hcd 0000:00:14.0: Error while assigning device slot ID [ 0.561163] xhci_hcd 0000:00:14.0: Max number of devices this xHCI host supports is 32. [ 0.561239] usb usb2-port5: couldn't allocate usb_device [ 0.561344] xhci_hcd 0000:00:14.0: Error while assigning device slot ID [ 0.561409] xhci_hcd 0000:00:14.0: Max number of devices this xHCI host supports is 32. [ 0.561484] usb usb2-port6: couldn't allocate usb_device This worked fine under 3.17. Is this a known problem? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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