Re: [Crash-utility] [PATCH] Add -r option to timer

Hi Qiao, Clarify this for me -- the offset value for the ktime_get_real() timer is presumably the current per-timer clock value for that timer: cpu: 0 HRTIMER_CPU_BASE: ffff880004159d20 clock: 0 HRTIMER_CLOCK_BASE: ffff880004159d28 OFFSET: 1277723463192897448 GET_TIME: ktime_get_real ACTIVE TIMERS: EXPIRES HRTIMER FUNCTION 1277723709520405731-1277723709520455731 ffff88001cc71d18 ffffffff81093e00 <hrtimer_wakeup> But what does an offset of 0 mean for ktime_get() timers? clock: 1 HRTIMER_CLOCK_BASE: ffff880004159d68 OFFSET: 0 GET_TIME: ktime_get ACTIVE TIMERS: EXPIRES HRTIMER FUNCTION 205155628339-205156606338 ffff88001dfa1a68 ffffffff81093e00 <hrtimer_wakeup> 205500000000-205500000000 ffff880004159e20 ffffffff810a0290 <tick_sched_timer> 212807104852-212807154852 ffff88000355fea8 ffffffff81093e00 <hrtimer_wakeup> 221875226353-221905226352 ffff880003611a68 ffffffff81093e00 <hrtimer_wakeup> 237880877947-237880927947 ffff88001df2dea8 ffffffff81093e00 <hrtimer_wakeup> 254807591647-254877419646 ffff88001d67ba68 ffffffff81093e00 <hrtimer_wakeup> 347174079293-347174079293 ffff8800035edc68 ffffffff810701a0 <it_real_fn> And for the old-style hrtimers, there is no offset value shown at all. What would their expires values compare to? clock: 1 HRTIMER_BASE: ffff810009006500 GET_TIME: ktime_get ACTIVE TIMERS: EXPIRES HRTIMER FUNCTION 614160200709018 ffff81042e432ab0 ffffffff80095103 <it_real_fn> 614160235717018 ffff8103d93681b0 ffffffff80095103 <it_real_fn> Dave