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Old 10-25-2011, 02:32 PM   #1
mlpa
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Linux kernel 3.1


A new version of the kernel is available, and for my one of the most important featues is cpupowerutils.

Any comments?
 
Old 10-25-2011, 03:49 PM   #2
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Put 3.1 on this morning. Don't really have much to offer about the new power-management features, however, alsa now recognises my sound hardware more accurately, so I'm a happy bunny

Last edited by GazL; 10-25-2011 at 09:21 PM. Reason: turned out it wasn't the quirks code that made the difference
 
Old 10-25-2011, 06:45 PM   #3
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It gives me no problem as well, but the sound level was so low after i ran alsaconf. I had to re-adjust the sound level in alsamixer and that's all.

Latest NVidia and VMWare workstation (plus a small patch) are working with these kernel and i'm happy with it
 
Old 10-25-2011, 08:31 PM   #4
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Isn't 3.1.x series the development kernel and not the mainstream stable like 3.0.x?
 
Old 10-25-2011, 09:23 PM   #5
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Quote:
Originally Posted by ReaperX7 View Post
Isn't 3.1.x series the development kernel and not the mainstream stable like 3.0.x?
It was until Linus tagged it as 3.1.0 and released it. 3.1.y is now a stable branch.

There may be some merit to staying back on 3.0.y for a little while longer to let the new one settle down - I normally wait for the .1 or .2 - but because of the improvement in support for my sound hardware, I'll risk being an early adopter this time around.

Last edited by GazL; 10-25-2011 at 09:27 PM.
 
Old 10-25-2011, 11:13 PM   #6
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3.0.8 just to note is out as well on the GIT page:

http://git.kernel.org/?p=linux/kerne....git;a=summary
 
Old 10-26-2011, 12:02 AM   #7
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Once it's released by Linus, it's marked as a stable release
 
Old 10-26-2011, 06:01 AM   #8
mlpa
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My point in power management is because i have a core i7 and cpufreq don't seem to output info about turbo boost or incorporate that in the scaling of freqs.

This new utility is supposed to be better in this aspect.
 
Old 10-26-2011, 07:11 AM   #9
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Quote:
Originally Posted by mlpa View Post
My point in power management is because i have a core i7 and cpufreq don't seem to output info about turbo boost or incorporate that in the scaling of freqs.

This new utility is supposed to be better in this aspect.
If this comment is still valid, you'll need to rebuild pciutils package with shared libpci enabled for cpupowerutils to work.
 
Old 10-26-2011, 02:52 PM   #10
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I've been running the 3.1.0 kernel since this last Saturday. Everything is looking good, but does anyone see the migragtion/x using up to 90% CPU? The funny thing is, although 'ps' states migration is at 90% CPU, it really isn't - CPU looks fine about ~4% total usage.
 
Old 10-26-2011, 03:27 PM   #11
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xconfig seemed to error out (something with glib not working) when trying to edit the configuration, gconfig (GTK frontend) works fine though.

Few new things since 3.0.7 required some reworking of the configuration a bit. Works good so far.
 
Old 10-26-2011, 04:06 PM   #12
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Quote:
Originally Posted by GazL View Post
Put 3.1 on this morning. Don't really have much to offer about the new power-management features, however, alsa now recognises my sound hardware more accurately, so I'm a happy bunny
My experience may be related. For a year or two now I lived with a regression that prevented speakers from being muted when headphones were plugged in. It only manifested on this one computer. Linux 3.1 fixed it.

Last edited by qweasd; 10-26-2011 at 04:06 PM. Reason: Version
 
Old 10-27-2011, 12:13 AM   #13
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ALSA could have fixed that independently of the kernel.
 
Old 10-27-2011, 04:32 AM   #14
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Quote:
Originally Posted by rfernandez View Post
I've been running the 3.1.0 kernel since this last Saturday. Everything is looking good, but does anyone see the migragtion/x using up to 90% CPU? The funny thing is, although 'ps' states migration is at 90% CPU, it really isn't - CPU looks fine about ~4% total usage.
Seems ok here.
Code:
root@slack:~# ps aux |head -1 ; ps aux |grep [m]igration
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         6  0.0  0.0      0     0 ?        S    09:35   0:00 [migration/0]
root         7  0.0  0.0      0     0 ?        S    09:35   0:00 [migration/1]
 
Old 10-27-2011, 10:31 AM   #15
qweasd
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Quote:
Originally Posted by ReaperX7 View Post
ALSA could have fixed that independently of the kernel.
I don't really know what caused or fixed it, but I am blaming the kernel, since Slackware 13.37 didn't update ALSA.
 
  


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