Bug#643905: marked as done (laptop-mode-tools: laptop-mode hook fails to replace original vm values after AC power is reattached)

Debian Bug Tracking System Sat, 01 Oct 2011 00:42:28 -0700

Your message dated Sat, 01 Oct 2011 13:04:37 +0530
with message-id <[email protected]>
and subject line Re: Bug#643905: laptop-mode-tools: laptop-mode hook fails to 
replace original vm values after AC power is reattached
has caused the Debian Bug report #643905,
regarding laptop-mode-tools: laptop-mode hook fails to replace original vm 
values after AC power is reattached
to be marked as done.


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If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
643905: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=643905
Debian Bug Tracking System
Contact [email protected] with problems

--- Begin Message ---

Package: laptop-mode-tools
Version: 1.58-3
Severity: normal

Dear Maintainer,

The /usr/lib/pm-utils/power.d/laptop-mode script which is executed by a hook
fails to return the original /proc/sys/vm/[laptop_mode, dirty_ratio,
dirty_background_ratio, dirty_writeback_centisecs] values after AC power is
reattached.

On first boot with AC power attached,
>/etc/init.d/laptop-mode status
Laptop mode status:

root@debian-n81vg:/home/jameschew# Mounts:
   /dev/sda6 on / type ext4 (rw,errors=remount-ro,commit=0)
   tmpfs on /lib/init/rw type tmpfs
(rw,nosuid,size=5242880,mode=755,size=5242880,mode=755)
   tmpfs on /run type tmpfs
(rw,noexec,nosuid,size=10%,mode=755,size=10%,mode=755)
   proc on /proc type proc (rw,noexec,nosuid,nodev)
   sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
   udev on /dev type tmpfs (rw,mode=0755)
   tmpfs on /run/shm type tmpfs
(rw,nosuid,nodev,size=20%,mode=1777,size=20%,mode=1777)
   devpts on /dev/pts type devpts
(rw,noexec,nosuid,gid=5,mode=620,gid=5,mode=620)
   /dev/sda5 on /VMs type ext4 (rw,commit=0)
   /dev/sda1 on /boot type ext2 (rw)
   /dev/mapper/n81vg-home on /home type ext4 (rw,commit=0)
   rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
   fusectl on /sys/fs/fuse/connections type fusectl (rw)
   binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)

Drive power status:

   /dev/sda:
    drive state is:  active/idle

(NOTE: drive settings affected by Laptop Mode cannot be retrieved.)

Readahead states:
   /dev/sda6: 128 kB
   /dev/sda5: 128 kB
   /dev/sda1: 128 kB
   /dev/mapper/n81vg-home: 128 kB

Laptop Mode Tools is allowed to run: /var/run/laptop-mode-tools/enabled exists.

/proc/sys/vm/laptop_mode:
   0

/proc/sys/vm/dirty_ratio:
   10

/proc/sys/vm/dirty_background_ratio:
   5

/proc/sys/vm/dirty_expire_centisecs:
   3000

/proc/sys/vm/dirty_writeback_centisecs:
   500

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:
   800000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:
   2534000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:
   800000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_cur_freq:
   2533000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq:
   2534000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_min_freq:
   800000

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
   ondemand

/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor:
   ondemand

/proc/acpi/button/lid/LID/state:
   state:      open

/sys/class/power_supply/AC0/online:
   1




When I remove AC power, and am running on batteries:
>/etc/init.d/laptop-mode status
Laptop mode status:

root@debian-n81vg:/home/jameschew# Mounts:
   /dev/sda6 on / type ext4 (rw,errors=remount-ro,commit=600)
   tmpfs on /lib/init/rw type tmpfs
(rw,nosuid,size=5242880,mode=755,size=5242880,mode=755)
   tmpfs on /run type tmpfs
(rw,noexec,nosuid,size=10%,mode=755,size=10%,mode=755)
   proc on /proc type proc (rw,noexec,nosuid,nodev)
   sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
   udev on /dev type tmpfs (rw,mode=0755)
   tmpfs on /run/shm type tmpfs
(rw,nosuid,nodev,size=20%,mode=1777,size=20%,mode=1777)
   devpts on /dev/pts type devpts
(rw,noexec,nosuid,gid=5,mode=620,gid=5,mode=620)
   /dev/sda5 on /VMs type ext4 (rw,commit=600)
   /dev/sda1 on /boot type ext2 (rw)
   /dev/mapper/n81vg-home on /home type ext4 (rw,commit=600)
   rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
   fusectl on /sys/fs/fuse/connections type fusectl (rw)
   binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)

Drive power status:

   /dev/sda:
    drive state is:  active/idle

(NOTE: drive settings affected by Laptop Mode cannot be retrieved.)

Readahead states:
   /dev/sda6: 3072 kB
   /dev/sda5: 3072 kB
   /dev/sda1: 3072 kB
   /dev/mapper/n81vg-home: 3072 kB

Laptop Mode Tools is allowed to run: /var/run/laptop-mode-tools/enabled exists.

/proc/sys/vm/laptop_mode:
   5

/proc/sys/vm/dirty_ratio:
   60

/proc/sys/vm/dirty_background_ratio:
   40

/proc/sys/vm/dirty_expire_centisecs:
   60000

/proc/sys/vm/dirty_writeback_centisecs:
   60000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:
   800000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:
   2534000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:
   800000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_cur_freq:
   800000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq:
   2534000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_min_freq:
   800000

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
   ondemand

/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor:
   ondemand

/proc/acpi/button/lid/LID/state:
   state:      open

/sys/class/power_supply/AC0/online:
   0




When I reattach AC power:
>/etc/init.d/laptop-mode status
Laptop mode status:

root@debian-n81vg:/home/jameschew# Mounts:
   /dev/sda6 on / type ext4 (rw,errors=remount-ro,commit=0)
   tmpfs on /lib/init/rw type tmpfs
(rw,nosuid,size=5242880,mode=755,size=5242880,mode=755)
   tmpfs on /run type tmpfs
(rw,noexec,nosuid,size=10%,mode=755,size=10%,mode=755)
   proc on /proc type proc (rw,noexec,nosuid,nodev)
   sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
   udev on /dev type tmpfs (rw,mode=0755)
   tmpfs on /run/shm type tmpfs
(rw,nosuid,nodev,size=20%,mode=1777,size=20%,mode=1777)
   devpts on /dev/pts type devpts
(rw,noexec,nosuid,gid=5,mode=620,gid=5,mode=620)
   /dev/sda5 on /VMs type ext4 (rw,commit=0)
   /dev/sda1 on /boot type ext2 (rw)
   /dev/mapper/n81vg-home on /home type ext4 (rw,commit=0)
   rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)
   fusectl on /sys/fs/fuse/connections type fusectl (rw)
   binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc
(rw,noexec,nosuid,nodev)

Drive power status:

   /dev/sda:
    drive state is:  active/idle

(NOTE: drive settings affected by Laptop Mode cannot be retrieved.)

Readahead states:
   /dev/sda6: 128 kB
   /dev/sda5: 128 kB
   /dev/sda1: 128 kB
   /dev/mapper/n81vg-home: 128 kB

Laptop Mode Tools is allowed to run: /var/run/laptop-mode-tools/enabled exists.

/proc/sys/vm/laptop_mode:
   2

/proc/sys/vm/dirty_ratio:
   60

/proc/sys/vm/dirty_background_ratio:
   1

/proc/sys/vm/dirty_expire_centisecs:
   3000

/proc/sys/vm/dirty_writeback_centisecs:
   60000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:
   800000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:
   2534000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:
   800000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_cur_freq:
   800000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_max_freq:
   2534000

/sys/devices/system/cpu/cpu1/cpufreq/cpuinfo_min_freq:
   800000

/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
   ondemand

/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor:
   ondemand

/proc/acpi/button/lid/LID/state:
   state:      open

/sys/class/power_supply/AC0/online:
   1




The main differences are the /proc/sys/vm/ files:
1. laptop_mode: is now 2 instead of 0.
2. dirty_ratio: is now 60 instead of 10.
3. dirty_background_ratio: is now 1 instead of 5.
4. dirty_writeback_centisecs: is now 60000 instead of 500



-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_SG.utf8, LC_CTYPE=en_SG.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages laptop-mode-tools depends on:
ii  lsb-base    3.2-28  
ii  psmisc      22.13-1 
ii  util-linux  2.19.1-5

Versions of packages laptop-mode-tools recommends:
ii  acpid           1:2.0.12-1
ii  apmd            3.2.2-14  
ii  ethtool         1:3.0-1   
ii  hal             0.5.14-7  
ii  hdparm          9.32-1    
ii  net-tools       1.60-24.1 
ii  sdparm          1.06-3    
ii  udev            172-1     
ii  wireless-tools  30~pre9-5 

laptop-mode-tools suggests no packages.

-- Configuration Files:
/etc/laptop-mode/conf.d/intel-hda-powersave.conf changed [not included]

-- no debconf information

--- End Message ---

--- Begin Message ---

On 10/01/2011 12:15 PM, James Chew wrote:
> As you had diagnosed, it does look like laptop-mode-tools and pm-utils
> are not playing nice with one another. However, while laptop_mode is now
> 0, dirty_ratio and dirty_background_ratio are not returned to their
> original values (but I think this has to do with the configuration files).
> 
> On a side note, pm-utils really does perform a lot of the actions
> laptop-mode-tools does. I was hoping to add Runtime Power Management for
> the PCI bus with the addition of the laptop-mode-tools package. I have
> written a small script that does what I wanted from /etc/pm/power.d/
> with the pm-utils package.
> 
> Do you still want the Verbose output from laptop-mode-tools with
> pm-utils installed?


lmt tries its best to co-exist with pm-utils. But because of the
duplication of the features, pm-utils ends up overriding many of the
settings lmt applies.

Which one you choose is a matter of preference. Also you could look into
any maybe disable the overlapping features.


I'm closing this bug now.

-- 
Ritesh Raj Sarraf | http://people.debian.org/~rrs
Debian - The Universal Operating System

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--- End Message ---

Bug#643905: marked as done (laptop-mode-tools: laptop-mode hook fails to replace original vm values after AC power is reattached)

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