When I ran "modprobe -r ipw2200" I got:
=================================
[ INFO: inconsistent lock state ]
2.6.23-rc1-mm2 #21
---------------------------------
inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
modprobe/6888 [HC0[0]:SC0[0]:HE1:SE1] takes:
(&priv->irq_lock){++..}, at: [<f8ce9b1c>] ipw_isr+0x1c/0xa9 [ipw2200]
{in-hardirq-W} state was registered at:
[<c0144837>] __lock_acquire+0x430/0xbca
[<c0145047>] lock_acquire+0x76/0x9d
[<c031ffe0>] _spin_lock+0x23/0x32
[<f8ce9b1c>] ipw_isr+0x1c/0xa9 [ipw2200]
[<c0154b44>] handle_IRQ_event+0x1a/0x4f
[<c0155c6c>] handle_fasteoi_irq+0x7d/0xb6
[<c0109a5a>] do_IRQ+0xaf/0xd9
[<ffffffff>] 0xffffffff
irq event stamp: 136973
hardirqs last enabled at (136973): [<c0173232>] kfree+0xc7/0xdb
hardirqs last disabled at (136972): [<c01731d2>] kfree+0x67/0xdb
softirqs last enabled at (136286): [<c012d8a1>] __do_softirq+0xf5/0xfb
softirqs last disabled at (136277): [<c0109932>] do_softirq+0x74/0xed
other info that might help us debug this:
no locks held by modprobe/6888.
stack backtrace:
[<c01080ab>] show_trace_log_lvl+0x12/0x25
[<c0108a9e>] show_trace+0xd/0x10
[<c0108bac>] dump_stack+0x16/0x18
[<c0143374>] print_usage_bug+0x107/0x114
[<c0143bdd>] mark_lock+0x1e9/0x400
[<c01448ab>] __lock_acquire+0x4a4/0xbca
[<c0145047>] lock_acquire+0x76/0x9d
[<c031ffe0>] _spin_lock+0x23/0x32
[<f8ce9b1c>] ipw_isr+0x1c/0xa9 [ipw2200]
[<c015506f>] free_irq+0xc9/0xf2
[<f8cea09c>] ipw_pci_remove+0x189/0x1c9 [ipw2200]
[<c0206dec>] pci_device_remove+0x19/0x39
[<c026a23a>] __device_release_driver+0x74/0x90
[<c026a6b6>] driver_detach+0xa2/0xe0
[<c0269dc5>] bus_remove_driver+0x5d/0x79
[<c026a71b>] driver_unregister+0x8/0xa
[<c0206f56>] pci_unregister_driver+0x13/0x55
[<f8cead75>] ipw_exit+0x1c/0x1e [ipw2200]
[<c014c85f>] sys_delete_module+0x1c6/0x237
[<c0106f02>] sysenter_past_esp+0x6b/0xb5
=======================
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