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Subjectlinux-next RCU complaint during boot
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Seen during boot of linux-next 20110831:

[ 8.823047] ------------[ cut here ]------------
[ 8.823177] WARNING: at kernel/rcutree.c:1821 rcu_needs_cpu_quick_check+0x6e/0x204()
[ 8.823314] Hardware name: Latitude E6500
[ 8.823418] Modules linked in:
[ 8.823601] Pid: 0, comm: swapper Not tainted 3.1.0-rc4-next-20110831-dirty #11
[ 8.823724] Call Trace:
[ 8.823824] <IRQ> [<ffffffff81039682>] warn_slowpath_common+0x7e/0x96
[ 8.824015] [<ffffffff81092467>] ? note_new_gpnum+0x32/0x96
[ 8.824034] [<ffffffff810396af>] warn_slowpath_null+0x15/0x17
[ 8.824034] [<ffffffff810917de>] rcu_needs_cpu_quick_check+0x6e/0x204
[ 8.824034] [<ffffffff81093df8>] rcu_needs_cpu+0x9/0xd
[ 8.824034] [<ffffffff81065933>] tick_nohz_stop_sched_tick+0x20a/0x420
[ 8.824034] [<ffffffff8103fd77>] irq_exit+0xd2/0xe0
[ 8.824034] [<ffffffff81018f91>] smp_apic_timer_interrupt+0x8b/0x99
[ 8.824034] [<ffffffff815a1b30>] apic_timer_interrupt+0x70/0x80
[ 8.824034] <EOI> [<ffffffff8159dbbf>] ? notifier_call_chain+0x20/0x81
[ 8.824034] [<ffffffff8159dc7e>] __atomic_notifier_call_chain+0x5e/0x90
[ 8.824034] [<ffffffff8159dc20>] ? notifier_call_chain+0x81/0x81
[ 8.824034] [<ffffffff8159dcbf>] atomic_notifier_call_chain+0xf/0x11
[ 8.824034] [<ffffffff8100092d>] cpu_idle+0xaf/0x102
[ 8.824034] [<ffffffff81569ddc>] rest_init+0xd0/0xd7
[ 8.824034] [<ffffffff81569d0c>] ? csum_partial_copy_generic+0x16c/0x16c
[ 8.824034] [<ffffffff81b31b09>] start_kernel+0x375/0x380
[ 8.824034] [<ffffffff81b3129f>] x86_64_start_reservations+0xaf/0xb3
[ 8.824034] [<ffffffff81b31393>] x86_64_start_kernel+0xf0/0xf7
[ 8.824034] ---[ end trace f6289633ba846f8f ]---
Any ideas?
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