BUG: sleeping function called from invalid context at net/core/sock.c:1523

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Upon resume (from suspend to RAM) of my laptop, I'm getting the
following. (Not a regression, it's been there a while.) This is under
2.6.21. Everything *seems* fine afterward, but... <shrug> -- it's not
like I use bluetooth all that often.

My laptop has the bluetooth adapter hooked via USB insternally, so
it's the hci_usb driver. Authors cc:d.

[    1.329537] BUG: sleeping function called from invalid context at
net/core/sock.c:1523
[    1.329574] in_atomic():1, irqs_disabled():0
[    1.329576] INFO: lockdep is turned off.
[    1.329578]
[    1.329578] Call Trace:
[    1.329585]  [<ffffffff8029cedc>] debug_show_held_locks+0x1c/0x30
[    1.329598]  [<ffffffff8020b2f5>] __might_sleep+0xe5/0xf0
[    1.329603]  [<ffffffff803cfdbc>] lock_sock_nested+0x2c/0x120
[    1.329617]  [<ffffffff881c9a6a>] :bluetooth:hci_sock_dev_event+0x4a/0xf0
[    1.329627]  [<ffffffff881c9ae7>] :bluetooth:hci_sock_dev_event+0xc7/0xf0
[    1.329634]  [<ffffffff80269cef>] notifier_call_chain+0x2f/0x50
[    1.329639]  [<ffffffff80269d49>] atomic_notifier_call_chain+0x39/0x70
[    1.329649]  [<ffffffff881c4d86>] :bluetooth:hci_notify+0x16/0x20
[    1.329657]  [<ffffffff881c5deb>] :bluetooth:hci_unregister_dev+0x5b/0x80
[    1.329664]  [<ffffffff8825e136>] :hci_usb:hci_usb_disconnect+0x56/0x90
[    1.329683]  [<ffffffff8801e0fe>] :usbcore:usb_unbind_interface+0x4e/0xa0
[    1.329690]  [<ffffffff80392e03>] __device_release_driver+0x93/0xc0
[    1.329694]  [<ffffffff803933e6>] device_release_driver+0x46/0x70
[    1.329699]  [<ffffffff80392638>] bus_remove_device+0x78/0x90
[    1.329703]  [<ffffffff80390697>] device_del+0x187/0x200
[    1.329717]  [<ffffffff8801b4d2>] :usbcore:usb_disable_device+0x82/0x110
[    1.329731]  [<ffffffff8801745a>] :usbcore:usb_disconnect+0xba/0x140
[    1.329746]  [<ffffffff88018440>] :usbcore:hub_thread+0x400/0xcc0
[    1.329757]  [<ffffffff80297970>] autoremove_wake_function+0x0/0x40
[    1.329772]  [<ffffffff88018040>] :usbcore:hub_thread+0x0/0xcc0
[    1.329775]  [<ffffffff802977a0>] keventd_create_kthread+0x0/0x90
[    1.329781]  [<ffffffff80233e73>] kthread+0xd3/0x110
[    1.329784]  [<ffffffff80228890>] schedule_tail+0x0/0xe0
[    1.329791]  [<ffffffff80260648>] child_rip+0xa/0x12
[    1.329796]  [<ffffffff80260200>] restore_args+0x0/0x30
[    1.329802]  [<ffffffff80233da0>] kthread+0x0/0x110
[    1.329806]  [<ffffffff8026063e>] child_rip+0x0/0x12
[    1.329809]

dmesg and lspci -vvv at

   http://madrabbit.org/~ray/2.6.21-dmesg
   http://madrabbit.org/~ray/nx6125.lspci

Ray
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