The bug is alive and kicking as of 2008-03-03 with 2.6.24-14-386.

When pcmcia card is inserted, dmesg shows:

[  918.729490]  =======================
[  930.524460] BUG: soft lockup - CPU#0 stuck for 11s! [swapper:0]
[  930.524569] 
[  930.524573] Pid: 0, comm: swapper Tainted: P        (2.6.24-14-386 #1)
[  930.524578] EIP: 0060:[<c0124f23>] EFLAGS: 00000206 CPU: 0
[  930.524584] EIP is at __do_softirq+0x33/0xa0
[  930.524588] EAX: c03fa000 EBX: 00000002 ECX: 00000002 EDX: 00000082
[  930.524593] ESI: c03d9640 EDI: 0000000a EBP: 00000000 ESP: c03fbf4c
[  930.524598]  DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
[  930.524603] CR0: 8005003b CR2: b7ec45cc CR3: 37032000 CR4: 00000690
[  930.524608] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[  930.524613] DR6: ffff0ff0 DR7: 00000400
[  930.524636]  [<c0124fd5>] do_softirq+0x45/0x50
[  930.524649]  [<c010752c>] do_IRQ+0x3c/0x70
[  930.524701]  [<c0106183>] common_interrupt+0x23/0x30
[  930.524753]  [<c015007b>] audit_alloc+0xeb/0x110
[  930.524759]  [<c011007b>] wakeup_code+0x7b/0xde
[  930.524785]  [<f884da72>] acpi_idle_enter_simple+0x140/0x1aa [processor]
[  930.524857]  [<c02734c1>] cpuidle_idle_call+0x71/0xa0
[  930.524879]  [<c010361c>] cpu_idle+0x1c/0x70
[  930.524885]  [<c03fcb05>] start_kernel+0x245/0x2d0
[  930.524897]  [<c03fc370>] unknown_bootoption+0x0/0x1e0
[  930.524929]  =======================
[  936.685659] cs: pcmcia_socket1: unable to apply power.

last line comes after I pull the card (PCMCIA USB 2.0 card) out.

In terms of workaround, I would appreciate if someone finds a good
solution (disabling pcmciautils seems to invite breakage because it runs
as a service in several runlevels)

-- 
insert a pcmcia card: BUG: soft lockup detected on CPU#0!
https://bugs.launchpad.net/bugs/63793
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