• Ingo Molnar's avatar
    [PATCH] high-res timers: resume fix · 995f054f
    Ingo Molnar authored
    Soeren Sonnenburg reported that upon resume he is getting
    this backtrace:
    
     [<c0119637>] smp_apic_timer_interrupt+0x57/0x90
     [<c0142d30>] retrigger_next_event+0x0/0xb0
     [<c0104d30>] apic_timer_interrupt+0x28/0x30
     [<c0142d30>] retrigger_next_event+0x0/0xb0
     [<c0140068>] __kfifo_put+0x8/0x90
     [<c0130fe5>] on_each_cpu+0x35/0x60
     [<c0143538>] clock_was_set+0x18/0x20
     [<c0135cdc>] timekeeping_resume+0x7c/0xa0
     [<c02aabe1>] __sysdev_resume+0x11/0x80
     [<c02ab0c7>] sysdev_resume+0x47/0x80
     [<c02b0b05>] device_power_up+0x5/0x10
    
    it turns out that on resume we mistakenly re-enable interrupts too
    early.  Do the timer retrigger only on the current CPU.
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Acked-by: default avatarSoeren Sonnenburg <kernel@nn7.de>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    995f054f
hrtimer.h 10.6 KB