One kyua test failure in FreeBSD10.1 running on Hyper-V 2012R2

Andy Zhang (AZURE) xiazhang at
Mon Dec 22 09:41:59 UTC 2014

Hi Ed,	
	This stress2 test framework is very easy to use. I have run the test on 10.1 over the weekend. The VM seems extremely slow after running stress2 for two days, is this expected?
My question is 
1. How long should I run the stress2 test?
2. Is there any clear test result shows whether this test passes or not? E.g. kyua test result is quite clear to me

I have uploaded the screen display log of "sh" in case you want to take a look:


Xia Zhang (Andy)
Shanghai OSTC team in Microsoft 

-----Original Message-----
From: carpeddiem at [mailto:carpeddiem at] On Behalf Of Ed Maste
Sent: Friday, December 19, 2014 6:23 AM
To: Andy Zhang (AZURE)
Cc: freebsd-testing at
Subject: Re: One kyua test failure in FreeBSD10.1 running on Hyper-V 2012R2

Hi Andy,

On 5 December 2014 at 07:10, Andy Zhang (AZURE) <xiazhang at> wrote:
> Hello guys,
>                Our team are doing some development work on FreeBSD running on Hyper-V. Per Craig's suggestion, recently I tried "kyua test" in FreeBSD10.1 on Hyper-V 2012R2, only 1 case failed out of 2430 cases.

Glad to hear you're running the regression tests on FreeBSD in Hyper-V.

You might like to have a look at Peter Holm's "stress2" test suite as well. As the name implies it's a set of kernel stress tests. The README for the test suite can be found here:

A quick-start guide to giving it a try:

% svnlite co svn://
% cd stress2
% make
% sh

Note that you may well run into bugs in stock FreeBSD. Either way the result should be useful in improving FreeBSD on Hyper-V.


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