linux-kernel - Re: Linux 2.6.35.6

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Message-ID: <20100927175412.GA23347@suse.de>
Date:	Mon, 27 Sep 2010 10:54:12 -0700
From:	Greg KH <gregkh@...e.de>
To:	tmhikaru@...il.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Linux 2.6.35.6

On Mon, Sep 27, 2010 at 12:32:08PM -0400, tmhikaru@...il.com wrote:
> 	I'm not exactly sure what's going on here and I'd like some help
> figuring out what is. For some inexplicable reason, ever since I started
> using the 2.6.35.x series with the 2.6.35.3 release, my loadaverages tend to
> bounce anywhere from as low to .2 to 1.5 - constantly, while the machine
> seems idle.

But .34 doesn't show this issue?

If so, can you run 'git bisect' between the .34 and .35 releases to find
out where the problem comes in?

> Consistently, there are no programs in D state in ps aux output,
> no cpu hogging programs running in top, nothing I can see that should
> explain the bizzarely high load average.

Loadaverage can be affected by a driver doing an uninteruptable sleep.
This doesn't actually cause a load on the system, but it does affect the
way that number is calcuated.  Perhaps that's the problem here.

> 	If you have any tips or recommendations on what I should use to
> investigate this further, please let me know. Once I have ensured to my own
> satisfaction that I'm not doing something bizzare that's screwing up my
> machine, I'll make a detailed bug report and start on figuring out how to
> use git bisect.

'man git-bisect' will help with this :)

thanks,

greg k-h
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