Re: HPET regression in 2.6.26 versus 2.6.25 -- found another userwith the same regression

[Rufus & Azrael]

Yinghai Lu wrote:
> cat /proc/timer_list
>    
see file attached.
Timer List Version: v0.3
HRTIMER_MAX_CLOCK_BASES: 2
now at 3695974274663 nsecs

cpu: 0
 clock 0:
  .index:      0
  .resolution: 1 nsecs
  .get_time:   ktime_get_real
  .offset:     1219520062195573940 nsecs
active timers:
 clock 1:
  .index:      1
  .resolution: 1 nsecs
  .get_time:   ktime_get
  .offset:     0 nsecs
active timers:
 #0: <ffff88007365dd68>, tick_sched_timer, S:01
 # expires at 3695975000000 nsecs [in 725337 nsecs]
 #1: <ffff88007365dd68>, hrtimer_wakeup, S:01
 # expires at 3696440460527 nsecs [in 466185864 nsecs]
  .expires_next   : 3695975000000 nsecs
  .hres_active    : 1
  .nr_events      : 329999
  .nohz_mode      : 2
  .idle_tick      : 3695912000000 nsecs
  .tick_stopped   : 0
  .idle_jiffies   : 4298363207
  .idle_calls     : 392104
  .idle_sleeps    : 112315
  .idle_entrytime : 3695973392707 nsecs
  .idle_waketime  : 3695911002655 nsecs
  .idle_exittime  : 3695973261196 nsecs
  .idle_sleeptime : 3631485402358 nsecs
  .last_jiffies   : 4298363269
  .next_jiffies   : 4298363307
  .idle_expires   : 3696011000000 nsecs
jiffies: 4298363270

cpu: 1
 clock 0:
  .index:      0
  .resolution: 1 nsecs
  .get_time:   ktime_get_real
  .offset:     1219520062195573940 nsecs
active timers:
 clock 1:
  .index:      1
  .resolution: 1 nsecs
  .get_time:   ktime_get
  .offset:     0 nsecs
active timers:
 #0: <ffff88007365dd68>, tick_sched_timer, S:01
 # expires at 3695975250000 nsecs [in 975337 nsecs]
 #1: <ffff88007365dd68>, it_real_fn, S:01
 # expires at 3695993484129 nsecs [in 19209466 nsecs]
 #2: <ffff88007365dd68>, hrtimer_wakeup, S:01
 # expires at 3696060447527 nsecs [in 86172864 nsecs]
 #3: <ffff88007365dd68>, hrtimer_wakeup, S:01
 # expires at 3698989020182 nsecs [in 3014745519 nsecs]
 #4: <ffff88007365dd68>, hrtimer_wakeup, S:01
 # expires at 3728638347527 nsecs [in 32664072864 nsecs]
 #5: <ffff88007365dd68>, hrtimer_wakeup, S:01
 # expires at 3743417075015 nsecs [in 47442800352 nsecs]
  .expires_next   : 3695975250000 nsecs
  .hres_active    : 1
  .nr_events      : 386558
  .nohz_mode      : 2
  .idle_tick      : 3695954250000 nsecs
  .tick_stopped   : 0
  .idle_jiffies   : 4298363250
  .idle_calls     : 589449
  .idle_sleeps    : 372520
  .idle_entrytime : 3695974261463 nsecs
  .idle_waketime  : 3695972715107 nsecs
  .idle_exittime  : 3695972738574 nsecs
  .idle_sleeptime : 3526088161959 nsecs
  .last_jiffies   : 4298363270
  .next_jiffies   : 4298363279
  .idle_expires   : 3696000000000 nsecs
jiffies: 4298363270


Tick Device: mode:     1
Clock Event Device: hpet
 max_delta_ns:   149983003520
 min_delta_ns:   3352
 mult:           61496115
 shift:          32
 mode:           3
 next_event:     9223372036854775807 nsecs
 set_next_event: hpet_legacy_next_event
 set_mode:       hpet_legacy_set_mode
 event_handler:  tick_handle_oneshot_broadcast
tick_broadcast_mask: 00000000
tick_broadcast_oneshot_mask: 00000000


Tick Device: mode:     1
Clock Event Device: lapic
 max_delta_ns:   672693290
 min_delta_ns:   1202
 mult:           53559019
 shift:          32
 mode:           3
 next_event:     3695975000000 nsecs
 set_next_event: lapic_next_event
 set_mode:       lapic_timer_setup
 event_handler:  hrtimer_interrupt

Tick Device: mode:     1
Clock Event Device: lapic
 max_delta_ns:   672693290
 min_delta_ns:   1202
 mult:           53559019
 shift:          32
 mode:           3
 next_event:     3695975250000 nsecs
 set_next_event: lapic_next_event
 set_mode:       lapic_timer_setup
 event_handler:  hrtimer_interrupt