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kmemleak, cpu usage jump out of nowhere

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From: Zeno Davatz
Subject: kmemleak, cpu usage jump out of nowhere
Date: Tuesday, July 13, 2010 - 11:12 pm

Hi

I got a new Intel core-8 i7 processor.

I am on kernel uname -a

Linux zenogentoo 2.6.35-rc5 #97 SMP Tue Jul 13 16:13:25 CEST 2010 i686
Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz GenuineIntel GNU/Linux

Sometimes in the middle of nowhere all of a sudden all of my 8-cores
are at 100% CPU usage and my machine really lags and hangs and is not
useable anymore. Some random process just grabs a bunch CPUs according
to htop.

dmesg tell me that

kmemleak: 38 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)

I am attaching you the file from /sys/kernel/debug/kmemleak

Let me know if you need anything else.

Best
Zeno
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Messages in current thread:
kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Tue Jul 13, 11:12 pm)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Wed Jul 14, 1:05 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Wed Jul 14, 1:27 am)
Re: kmemleak, cpu usage jump out of nowhere, Damien Wyart, (Wed Jul 14, 1:31 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Wed Jul 14, 1:34 am)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Wed Jul 14, 1:38 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Wed Jul 14, 1:54 am)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Wed Jul 14, 1:57 am)
Re: kmemleak, cpu usage jump out of nowhere, Catalin Marinas, (Wed Jul 14, 2:47 am)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Wed Jul 14, 2:55 am)
Re: kmemleak, cpu usage jump out of nowhere, Catalin Marinas, (Wed Jul 14, 2:57 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Wed Jul 14, 3:00 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Wed Jul 14, 3:04 am)
Re: kmemleak, cpu usage jump out of nowhere, Catalin Marinas, (Wed Jul 14, 4:54 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Wed Jul 14, 4:59 am)
Re: kmemleak, cpu usage jump out of nowhere, Catalin Marinas, (Thu Jul 15, 7:58 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Thu Jul 15, 8:15 am)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Thu Jul 15, 8:54 am)
Re: kmemleak, cpu usage jump out of nowhere, Damien Wyart, (Thu Jul 15, 9:28 am)
Re: kmemleak, cpu usage jump out of nowhere, Damien Wyart, (Thu Jul 15, 12:16 pm)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Thu Jul 15, 12:50 pm)
Re: kmemleak, cpu usage jump out of nowhere, Damien Wyart, (Thu Jul 15, 1:00 pm)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Thu Jul 15, 1:38 pm)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Thu Jul 15, 1:50 pm)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Thu Jul 15, 1:52 pm)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Thu Jul 15, 1:57 pm)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 12:12 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 12:29 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 12:37 am)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Fri Jul 16, 12:50 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 2:17 am)
Re: kmemleak, cpu usage jump out of nowhere, Pekka Enberg, (Fri Jul 16, 2:32 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 2:42 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 2:47 am)
Re: kmemleak, cpu usage jump out of nowhere, Yinghai Lu, (Fri Jul 16, 11:27 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Fri Jul 16, 1:29 pm)
Re: kmemleak, cpu usage jump out of nowhere, Yinghai Lu, (Fri Jul 16, 1:59 pm)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Sat Jul 17, 1:46 am)
Re: kmemleak, cpu usage jump out of nowhere, Peter Zijlstra, (Tue Aug 3, 2:05 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Tue Aug 3, 2:11 am)
Re: kmemleak, cpu usage jump out of nowhere, damien.wyart, (Tue Aug 3, 2:15 am)
Re: kmemleak, cpu usage jump out of nowhere, Zeno Davatz, (Tue Aug 3, 2:18 am)
Re: kmemleak, cpu usage jump out of nowhere, Damien Wyart, (Fri Aug 20, 2:32 am)
Re: kmemleak, cpu usage jump out of nowhere, Peter Zijlstra, (Fri Aug 20, 2:40 am)