Got this on today's git (2.6.24-rc4) while compiling  stuff - Looks

like it is related to CpuIdle stuff.

I chose CONFIG_CPU_IDLE for the first time so I don't know when this

was introduced.
This is on x86_32, SMP.
BUG: soft lockup - CPU#1 stuck for 15s! [swapper:0]
Pid: 0, comm: swapper Not tainted (2.6.24-rc4 #3)

EIP: 0060:[] EFLAGS: 00000202 CPU: 1

EIP is at _spin_lock_irqsave+0x16/0x27

EAX: c06b4110 EBX: 00000001 ECX: f7873808 EDX: 00000293

ESI: 00000005 EDI: f7873808 EBP: 00000000 ESP: f7829f10

 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068

CR0: 8005003b CR2: 004f5960 CR3: 372c5000 CR4: 000006d0

DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000

DR6: ffff0ff0 DR7: 00000400

 [] tick_broadcast_oneshot_control+0x10/0xda

 [] tick_notify+0x1d4/0x2eb

 [] get_next_timer_interrupt+0x143/0x1b4

 [] notifier_call_chain+0x2a/0x47

 [] raw_notifier_call_chain+0x17/0x1a

 [] clockevents_notify+0x19/0x4f

 [] acpi_idle_enter_simple+0x183/0x1d0

 [] cpuidle_idle_call+0x53/0x78

 [] cpuidle_idle_call+0x0/0x78

 [] cpu_idle+0x97/0xb8

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