Re: kmemleak, cpu usage jump out of nowhere

From: Pekka Enberg
Date: Fri Jul 16 2010 - 05:32:28 EST


Hi Zeno,

Zeno Davatz wrote:
This version has some problem with the DRM but no CPU eater yet.

http://www.flickr.com/photos/zrr/4798885756/

This version boots again just fine:

Linux zenogentoo 2.6.34-rc5-00059-gc2b4127 #105 SMP Fri Jul 16
11:13:21 CEST 2010 i686 Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz
GenuineIntel GNU/Linux

You're going into the wrong direction. If 2.6.34-rc7 works just fine, you shouldn't be testing 2.6.34-rc5.


As I understand I am bisecting upwards. Every time it does not boot
correctly I do

git bisect bad after the next boot.

No, you should only do "git bisect bad" if you find a CPU eater and "git bisect good" if you don't. For the non-booting kernels you should do "git bisect skip"; otherwise git gets confused as we can see here.

Did you test v2.6.35-rc1? Does it have the CPU eater problem? If yes, please just reset your bisection

git bisect reset
git bisect start
git bisect good v2.6.34-rc7
git bisect bad v2.6.35-rc1

and use 'git bisect skip' for kernels that don't boot or build.

Pekka
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