found 614801 3.6.9-1~experimental.1 thanks As requested I checked older versions - and also found this bug in 3.6.9.
# uname -a Linux system 3.6-trunk-686-pae #1 SMP Debian 3.6.9-1~experimental.1 i686 GNU/Linux # lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub in dmesg: [ 8.496083] xhci_hcd 0000:00:02.0: Timeout while waiting for a slot [ 8.498708] hub 1-0:1.0: couldn't allocate port 2 usb_device -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]

