I got this on resume; it looks like a Bluetooth and/or USB problem. PM: Removing info for No Bus:hci0 BUG: sleeping function called from invalid context at net/core/sock.c:1523 in_atomic():1, irqs_disabled():0 1 lock held by khubd/180: #0: (old_style_rw_init#2){-.-?}, at: [] hci_sock_dev_event+0x42/0xc5 [bluetooth] [] show_trace_log_lvl+0x1a/0x30 [] show_trace+0x12/0x14 [] dump_stack+0x16/0x18 [] __might_sleep+0xe5/0xeb [] lock_sock_nested+0x1d/0xc4 [] hci_sock_dev_event+0xa7/0xc5 [bluetooth] [] notifier_call_chain+0x20/0x3c [] atomic_notifier_call_chain+0x27/0x50 [] hci_notify+0x12/0x14 [bluetooth] [] hci_unregister_dev+0x4c/0x65 [bluetooth] [] hci_usb_disconnect+0x42/0x6f [hci_usb] [] usb_unbind_interface+0x33/0x69 [] __device_release_driver+0x74/0x90 [] device_release_driver+0x33/0x4b [] bus_remove_device+0x73/0x82 [] device_del+0x169/0x1cf [] usb_disable_device+0x62/0xc2 [] usb_disconnect+0x95/0x114 [] hub_thread+0x2e2/0x99b [] kthread+0xb5/0xe2 [] kernel_thread_helper+0x7/0x10 ======================= PM: Removing info for usb:4-1:1.0 The machine came up anyway, without apparent problems. J