2.6.36: commit f12a15 makes computer really slow

2.6.36: commit f12a15 makes computer really slow

[Thomas Meyer]

I need to revert commit f12a15 to have a workable computer:

commit f12a15be63d1de9a35971f35f06b73088fa25c3a
Author: John Stultz <johnstul@us.ibm.com>
Date:   Tue Jul 13 17:56:27 2010 -0700

    x86: Convert common clocksources to use clocksource_register_hz/khz
    
    This converts the most common of the x86 clocksources over to use
    clocksource_register_hz/khz.


/proc/timer_list:
[...]

Tick Device: mode:     1
Broadcast device
Clock Event Device: hpet
 max_delta_ns:   149983005959
 min_delta_ns:   5000
 mult:           61496114
 shift:          32
 mode:           3
 next_event:     271895610827 nsecs
 set_next_event: hpet_legacy_next_event
 set_mode:       hpet_legacy_set_mode
 event_handler:  tick_handle_oneshot_broadcast
 retries:        1
tick_broadcast_mask: 00000001
tick_broadcast_oneshot_mask: 00000000


Tick Device: mode:     1
Per CPU device: 0
Clock Event Device: lapic
 max_delta_ns:   672727706
 min_delta_ns:   1202
 mult:           53556279
 shift:          32
 mode:           3
 next_event:     271766639490 nsecs
 set_next_event: lapic_next_event
 set_mode:       lapic_timer_setup
 event_handler:  hrtimer_interrupt
 retries:        8

This is an x86_32 box.