]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
[PATCH] high-res timers: resume fix
authorIngo Molnar <mingo@elte.hu>
Sat, 7 Apr 2007 10:05:00 +0000 (12:05 +0200)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Sat, 7 Apr 2007 17:03:43 +0000 (10:03 -0700)
commit995f054f2a342f8505fed4f8395d12c0f5966414
tree08ddf96e3365d2b0a9940914fdb179810fbca3a0
parentbbef618190fb484b28b7d441e6fc5d524027c4fa
[PATCH] high-res timers: resume fix

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: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Soeren Sonnenburg <kernel@nn7.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/hrtimer.h
kernel/hrtimer.c
kernel/timer.c