Re: [REGRESSION] [2.6.37-rc1] Fan noise after suspend to ram/disk

[Maciej Rutecki]

On poniedziaÅek, 8 listopada 2010 o 07:58:52 Zhang Rui wrote:
> IMO, the only one that may cause this regression is commit
> c57b62f5b1e6dd69ff8c96f6db7f86ea31c0e21f
> some app may enable polling via procfs and update the thermal zone
> status.

I revert this commit from 2.6.37-rc1. Still the same:
maciek@gumis:~$ grep . /sys/class/thermal/*/*
/sys/class/thermal/cooling_device0/cur_state:0
/sys/class/thermal/cooling_device0/max_state:10
/sys/class/thermal/cooling_device0/type:LCD
/sys/class/thermal/cooling_device1/cur_state:0
/sys/class/thermal/cooling_device1/max_state:10
/sys/class/thermal/cooling_device1/type:Processor
/sys/class/thermal/cooling_device2/cur_state:0
/sys/class/thermal/cooling_device2/max_state:10
/sys/class/thermal/cooling_device2/type:Processor
/sys/class/thermal/cooling_device3/cur_state:1
/sys/class/thermal/cooling_device3/max_state:1
/sys/class/thermal/cooling_device3/type:Fan
/sys/class/thermal/cooling_device4/cur_state:1
/sys/class/thermal/cooling_device4/max_state:1
/sys/class/thermal/cooling_device4/type:Fan
/sys/class/thermal/cooling_device5/cur_state:1
/sys/class/thermal/cooling_device5/max_state:1
/sys/class/thermal/cooling_device5/type:Fan
/sys/class/thermal/cooling_device6/cur_state:1
/sys/class/thermal/cooling_device6/max_state:1
/sys/class/thermal/cooling_device6/type:Fan
/sys/class/thermal/thermal_zone0/cdev0_trip_point:1
/sys/class/thermal/thermal_zone0/cdev1_trip_point:2
/sys/class/thermal/thermal_zone0/cdev2_trip_point:3
/sys/class/thermal/thermal_zone0/cdev3_trip_point:4
/sys/class/thermal/thermal_zone0/mode:enabled
/sys/class/thermal/thermal_zone0/passive:0
/sys/class/thermal/thermal_zone0/temp:37000
/sys/class/thermal/thermal_zone0/trip_point_0_temp:256000
/sys/class/thermal/thermal_zone0/trip_point_0_type:critical
/sys/class/thermal/thermal_zone0/trip_point_1_temp:78000
/sys/class/thermal/thermal_zone0/trip_point_1_type:active
/sys/class/thermal/thermal_zone0/trip_point_2_temp:70000
/sys/class/thermal/thermal_zone0/trip_point_2_type:active
/sys/class/thermal/thermal_zone0/trip_point_3_temp:60000
/sys/class/thermal/thermal_zone0/trip_point_3_type:active
/sys/class/thermal/thermal_zone0/trip_point_4_temp:50000
/sys/class/thermal/thermal_zone0/trip_point_4_type:active
/sys/class/thermal/thermal_zone0/type:acpitz
/sys/class/thermal/thermal_zone1/cdev0_trip_point:1
/sys/class/thermal/thermal_zone1/cdev1_trip_point:1
/sys/class/thermal/thermal_zone1/mode:enabled
/sys/class/thermal/thermal_zone1/temp:36000
/sys/class/thermal/thermal_zone1/trip_point_0_temp:90000
/sys/class/thermal/thermal_zone1/trip_point_0_type:critical
/sys/class/thermal/thermal_zone1/trip_point_1_temp:87000
/sys/class/thermal/thermal_zone1/trip_point_1_type:passive
/sys/class/thermal/thermal_zone1/type:acpitz
/sys/class/thermal/thermal_zone2/mode:enabled
/sys/class/thermal/thermal_zone2/passive:0
/sys/class/thermal/thermal_zone2/temp:33000
/sys/class/thermal/thermal_zone2/trip_point_0_temp:105000
/sys/class/thermal/thermal_zone2/trip_point_0_type:critical
/sys/class/thermal/thermal_zone2/type:acpitz
/sys/class/thermal/thermal_zone3/cdev0_trip_point:1
/sys/class/thermal/thermal_zone3/cdev1_trip_point:1
/sys/class/thermal/thermal_zone3/mode:enabled
/sys/class/thermal/thermal_zone3/temp:30800
/sys/class/thermal/thermal_zone3/trip_point_0_temp:90000
/sys/class/thermal/thermal_zone3/trip_point_0_type:critical
/sys/class/thermal/thermal_zone3/trip_point_1_temp:60000
/sys/class/thermal/thermal_zone3/trip_point_1_type:passive
/sys/class/thermal/thermal_zone3/type:acpitz
/sys/class/thermal/thermal_zone4/mode:enabled
/sys/class/thermal/thermal_zone4/passive:0
/sys/class/thermal/thermal_zone4/temp:100000
/sys/class/thermal/thermal_zone4/trip_point_0_temp:110000
/sys/class/thermal/thermal_zone4/trip_point_0_type:critical
/sys/class/thermal/thermal_zone4/type:acpitz

maciek@gumis:~$ grep . /proc/acpi/thermal_zone/*/*
/proc/acpi/thermal_zone/TZ0/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ0/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ0/state:state:                   active[0]
/proc/acpi/thermal_zone/TZ0/temperature:temperature:             37 C
/proc/acpi/thermal_zone/TZ0/trip_points:critical (S5):           256 C
/proc/acpi/thermal_zone/TZ0/trip_points:passive (forced):<not set>
/proc/acpi/thermal_zone/TZ0/trip_points:active[0]:               78 C: 
devices=C325 
/proc/acpi/thermal_zone/TZ0/trip_points:active[1]:               70 C: 
devices=C326 
/proc/acpi/thermal_zone/TZ0/trip_points:active[2]:               60 C: 
devices=C327 
/proc/acpi/thermal_zone/TZ0/trip_points:active[3]:               50 C: 
devices=C328 
/proc/acpi/thermal_zone/TZ1/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ1/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ1/state:state:                   ok
/proc/acpi/thermal_zone/TZ1/temperature:temperature:             35 C
/proc/acpi/thermal_zone/TZ1/trip_points:critical (S5):           90 C
/proc/acpi/thermal_zone/TZ1/trip_points:passive:                 87 C: tc1=1 
tc2=2 tsp=300 devices=CPU0 CPU1 
/proc/acpi/thermal_zone/TZ2/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ2/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ2/state:state:                   ok
/proc/acpi/thermal_zone/TZ2/temperature:temperature:             33 C
/proc/acpi/thermal_zone/TZ2/trip_points:critical (S5):           105 C
/proc/acpi/thermal_zone/TZ2/trip_points:passive (forced):<not set>
/proc/acpi/thermal_zone/TZ3/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ3/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ3/state:state:                   ok
/proc/acpi/thermal_zone/TZ3/temperature:temperature:             31 C
/proc/acpi/thermal_zone/TZ3/trip_points:critical (S5):           90 C
/proc/acpi/thermal_zone/TZ3/trip_points:passive:                 60 C: tc1=1 
tc2=2 tsp=300 devices=CPU0 CPU1 
/proc/acpi/thermal_zone/TZ4/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ4/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ4/state:state:                   ok
/proc/acpi/thermal_zone/TZ4/temperature:temperature:             100 C
/proc/acpi/thermal_zone/TZ4/trip_points:critical (S5):           110 C
/proc/acpi/thermal_zone/TZ4/trip_points:passive (forced):<not set>

> 
> could you please attach the output of "grep . /proc/acpi/thermal/*/*" in
> 2.6.36 kernel?
> 
2.6.36 after suspend to ram (CPU temp was above 1st trip point):

maciek@gumis:~$ grep . /proc/acpi/fan/*/*
/proc/acpi/fan/C325/state:status:                  off
/proc/acpi/fan/C326/state:status:                  off
/proc/acpi/fan/C327/state:status:                  off
/proc/acpi/fan/C328/state:status:                  on

maciek@gumis:~$ grep . /proc/acpi/thermal_zone/*/*
/proc/acpi/thermal_zone/TZ0/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ0/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ0/state:state:                   active[0]
/proc/acpi/thermal_zone/TZ0/temperature:temperature:             50 C
/proc/acpi/thermal_zone/TZ0/trip_points:critical (S5):           256 C
/proc/acpi/thermal_zone/TZ0/trip_points:passive (forced):<not set>
/proc/acpi/thermal_zone/TZ0/trip_points:active[0]:               78 C: 
devices=C325 
/proc/acpi/thermal_zone/TZ0/trip_points:active[1]:               70 C: 
devices=C326 
/proc/acpi/thermal_zone/TZ0/trip_points:active[2]:               60 C: 
devices=C327 
/proc/acpi/thermal_zone/TZ0/trip_points:active[3]:               45 C: 
devices=C328 
/proc/acpi/thermal_zone/TZ1/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ1/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ1/state:state:                   ok
/proc/acpi/thermal_zone/TZ1/temperature:temperature:             47 C
/proc/acpi/thermal_zone/TZ1/trip_points:critical (S5):           90 C
/proc/acpi/thermal_zone/TZ1/trip_points:passive:                 87 C: tc1=1 
tc2=2 tsp=300 devices=CPU0 CPU1 
/proc/acpi/thermal_zone/TZ2/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ2/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ2/state:state:                   ok
/proc/acpi/thermal_zone/TZ2/temperature:temperature:             40 C
/proc/acpi/thermal_zone/TZ2/trip_points:critical (S5):           105 C
/proc/acpi/thermal_zone/TZ2/trip_points:passive (forced):<not set>
/proc/acpi/thermal_zone/TZ3/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ3/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ3/state:state:                   ok
/proc/acpi/thermal_zone/TZ3/temperature:temperature:             28 C
/proc/acpi/thermal_zone/TZ3/trip_points:critical (S5):           90 C
/proc/acpi/thermal_zone/TZ3/trip_points:passive:                 60 C: tc1=1 
tc2=2 tsp=300 devices=CPU0 CPU1 
/proc/acpi/thermal_zone/TZ4/cooling_mode:<setting not supported>
/proc/acpi/thermal_zone/TZ4/polling_frequency:<polling disabled>
/proc/acpi/thermal_zone/TZ4/state:state:                   ok
/proc/acpi/thermal_zone/TZ4/temperature:temperature:             40 C
/proc/acpi/thermal_zone/TZ4/trip_points:critical (S5):           110 C
/proc/acpi/thermal_zone/TZ4/trip_points:passive (forced):<not set>

Regards
-- 
Maciej Rutecki
http://www.maciek.unixy.pl
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