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    SubjectRe: clockevents_program_event WARN_ON preventing boot.
    From
    On Thu, May 2, 2013 at 2:19 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
    > Can you please apply the following debug patch and provide the output?
    >
    > diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
    > index c6d6400..b4d9622 100644
    > --- a/kernel/time/clockevents.c
    > +++ b/kernel/time/clockevents.c
    > @@ -207,6 +207,8 @@ int clockevents_program_event(struct clock_event_device *dev, ktime_t expires,
    >
    > if (unlikely(expires.tv64 < 0)) {
    > WARN_ON_ONCE(1);
    > + printk_once(KERN_INFO "expires %llx, dev->next %llx\n",
    > + expires.tv64, dev->next_event.tv64);
    > return -ETIME;
    > }
    >

    [ 3.450968] SMP alternatives: lockdep: fixing up alternatives
    [ 3.454454] ------------[ cut here ]------------
    [ 3.454470] WARNING: at kernel/time/clockevents.c:209
    clockevents_program_event+0x3e/0x120()
    [ 3.454473] Modules linked in:
    [ 3.454479] CPU: 10 PID: 0 Comm: swapper/10 Not tainted
    3.9.0-yh-08066-g1252014-dirty #1538
    [ 3.454481] Hardware name: Oracle Corporation unknown /
    , BIOS 11016600 05/17/2011
    [ 3.454500] 0000000000000009 ffff88203e203ed8 ffffffff82091042
    ffff88203e203f18
    [ 3.454518] ffffffff81088990 ffff88203e203f08 ffff88203e20d000
    80000000003d08ff
    [ 3.454526] 000000000000000a ffff881027557fd8 0000000000000000
    ffff88203e203f28
    [ 3.454527] Call Trace:
    [ 3.454540] <IRQ> [<ffffffff82091042>] dump_stack+0x19/0x1b
    [ 3.454548] [<ffffffff81088990>] warn_slowpath_common+0x70/0xa0
    [ 3.454552] [<ffffffff810889da>] warn_slowpath_null+0x1a/0x20
    [ 3.454556] [<ffffffff810e312e>] clockevents_program_event+0x3e/0x120
    [ 3.454560] [<ffffffff810e360c>] tick_handle_periodic+0x4c/0x80
    [ 3.454566] [<ffffffff820ae8cd>] smp_apic_timer_interrupt+0x8d/0xa3
    [ 3.454575] [<ffffffff820adbef>] apic_timer_interrupt+0x6f/0x80
    [ 3.454583] <EOI> [<ffffffff810527f7>] ? default_idle+0x57/0xd0
    [ 3.454587] [<ffffffff810527f5>] ? default_idle+0x55/0xd0
    [ 3.454591] [<ffffffff81053078>] arch_cpu_idle+0x18/0x20
    [ 3.454595] [<ffffffff810dbec5>] cpu_startup_entry+0x165/0x210
    [ 3.454603] [<ffffffff8207f3cd>] start_secondary+0x1df/0x1e6
    [ 3.454626] ---[ end trace 2f2f1a2adee9c881 ]---
    [ 3.454628] expires 80000000003d08ff, dev->next 7fffffffffffffff


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