linux-kernel - Re: 2.6.18 is problematic in VMware

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Message-ID: <Pine.LNX.4.61.0611030906490.13091@yvahk01.tjqt.qr>
Date:	Fri, 3 Nov 2006 09:07:05 +0100 (MET)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	Zachary Amsden <zach@...are.com>
cc:	Mark Lord <lkml@....ca>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: 2.6.18 is problematic in VMware

>
> I see a large delay _before_:

(Yes, so do I)

> Calibrating delay using timer specific routine.. (lpj==
>
> The lpj value is 38x the host lpj host value.  Booting with lpj="some random
> number" removes the stall for me.  And finally, breaking into kernel in this
> stall period consistently shows EIPs in calibrate_delay in backtrace.
>
>> One can see that it pauses before calibration (already mentioned that) and
>> once again after NET: ... during IP init!? What's going on :(
>> 
>
> The NET: pause has always been there, I think it just becomes much more
> noticeable if the lpj value is 38x normal.
>
> Conclusion: you are getting bad lpj computation during beginning.  Doesn't
> appear to be a kernel bug, so let's take it off list.  You can bring it up on
> VMTN http://www.vmware.com/community/index.jspa?categoryID=1 for more on-topic
> support.  In fact, interesting test you can try - suspend / resume during the
> hang.  Does the discontinuity during calibration make it go away?

http://www.vmware.com/community/thread.jspa?threadID=60663



	-`J'
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