To trigger this, I booted with a U.S. Robotics USR2210 Wifi card
plugged into my cardbus slot. I then ran "pccardctl eject" and then
removed and then reinserted the card. After looking at the latest
PCMCIA info, it seems that I may need to add some kernel boot options
to work around a BIOS or other problem that causes trouble when
removing a card.
PM: Removing info for pci:0000:02:00.0
PCMCIA: socket c1ebc9e0: *** DANGER *** unable to remove socket power
============================
[ BUG: illegal lock usage! ]
----------------------------
illegal {hardirq-on-W} -> {in-hardirq-W} usage.
swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes:
(&socket->thread_lock){+-..}, at: [<c1181270>] pcmcia_parse_events+0x3e/0x6b
{hardirq-on-W} state was registered at:
[<c102d1c8>] lock_acquire+0x60/0x80
[<c120136e>] _spin_lock+0x23/0x32
[<c1181270>] pcmcia_parse_events+0x3e/0x6b
[<c1181945>] pcmcia_register_socket+0x29b/0x2fc
[<c118a8d1>] yenta_probe+0x51b/0x55c
[<c110d537>] pci_device_probe+0x39/0x5b
[<c1162598>] driver_probe_device+0x45/0x92
[<c11626b2>] __driver_attach+0x5c/0x85
[<c1162022>] bus_for_each_dev+0x36/0x5b
[<c11624f0>] driver_attach+0x14/0x17
[<c1161d02>] bus_add_driver+0x6b/0x109
[<c1162968>] driver_register+0x9d/0xa2
[<c110d6ab>] __pci_register_driver+0x4f/0x6c
[<c13760b1>] yenta_socket_init+0xf/0x11
[<c10002a8>] init+0x88/0x1de
[<c1001005>] kernel_thread_helper+0x5/0xb
irq event stamp: 11031192
hardirqs last enabled at (11031191): [<c11408c6>]
acpi_processor_idle+0x1d1/0x35b
hardirqs last disabled at (11031192): [<c1002fcf>] common_interrupt+0x1b/0x2c
softirqs last enabled at (11031186): [<c101a767>] __do_softirq+0xab/0xb0
softirqs last disabled at (11031171): [<c1004a64>] do_softirq+0x58/0xbd
other info that might help us debug this:
no locks held by swapper/0.
stack backtrace:
[<c1003502>] show_trace_log_lvl+0x54/0xfd
[<c1003b6a>] show_trace+0xd/0x10
[<c1003c0e>] dump_stack+0x19/0x1b
[<c102b833>] print_usage_bug+0x1cc/0x1d9
[<c102bc2b>] mark_lock+0x8a/0x360
[<c102c922>] __lock_acquire+0x38f/0x970
[<c102d1c8>] lock_acquire+0x60/0x80
[<c120136e>] _spin_lock+0x23/0x32
[<c1181270>] pcmcia_parse_events+0x3e/0x6b
[<c118a3ac>] yenta_interrupt+0xad/0xb7
[<c103f227>] handle_IRQ_event+0x20/0x50
[<c103f2cc>] __do_IRQ+0x75/0xc9
[<c1004b84>] do_IRQ+0xbb/0xcf
[<c1002fd9>] common_interrupt+0x25/0x2c
pccard: CardBus card inserted into slot 0
PM: Adding info for pci:0000:02:00.0
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