On Thu, Aug 29, 2013 at 07:27:40PM +0900, SHIMA Keiichi wrote:

[...]
 
> Do we have any usage scenario of the blocked state?

I thing this is backwards. I like my SNMP agent to access the current
state and report it. It does not matter whether I believe the state is
short lived or not. I like to see the actual state - not a translation
of it. The worst experience when I debug problems is when software
tries to hide reality. And, btw, being blocked is really not uncommon
in a Xen setup.

$ sudo xm list
Name                                        ID   Mem VCPUs      State   Time(s)
Domain-0                                     0  4160     8     r----- 267537.1
foo                                          3   512     1     -b----  39148.0
bar                                         17  2048     1     -b----  71467.1
baz                                         20  2048     1     -b----  80750.0
bing                                         6  1024     1     -b----  66408.8
bong                                         8   256     1     -b----  57365.8
bang                                        21  1024     1     -b----  36534.1
yum                                         10   256     1     -b----  41611.5
yam                                         15  1024     1     -b----  49363.2
yim                                         16  2048     1     -b----  44081.6

(Taken from a live machine with names obfuscated.)

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1, 28759 Bremen, Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>
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