<p>I barely remember there was a fix in the kernel related to this. I might be wrong, but it's worth checking on a latest rhel6 stable or testing kernel.</p>
<div class="gmail_quote">11.07.2012 3:54 пользователь "Mark Johanson" <<a href="mailto:mjohanson@a2hosting.com">mjohanson@a2hosting.com</a>> написал:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Linux <a href="http://solusvm.a2hosting.com" target="_blank">solusvm.a2hosting.com</a> 2.6.32-042stab053.5 #1 SMP Tue Mar 27<br>
vzctl version 3.3<br>
vswap is enabled<br>
<br>
Since upgrading to a 2.6.32 kernel one of our users noticed that they<br>
are occasionally getting a Floating Point Exception when running vmstat:<br>
<br>
[root@server ~]# vmstat 1 5<br>
procs -----------memory---------- ---swap-- -----io---- --system--<br>
-----cpu------<br>
r b swpd free buff cache si so bi bo in cs us sy<br>
id wa st<br>
0 0 0 2048244 0 32816 0 0 0 2 0 7627 0 0<br>
99 0 0<br>
0 0 0 2048236 0 32816 0 0 0 0 0 110 0 0<br>
100 0 0<br>
0 0 0 2048236 0 32816 0 0 0 0 0 78 0 0<br>
100 0 0<br>
0 0 0 2048236 0 32816 0 0 0 0 0 91 0 0<br>
100 0 0<br>
Floating point exception<br>
<br>
It doesn't happen every time as you can see here:<br>
<br>
[root@server ~]# vmstat 1 10<br>
procs -----------memory---------- ---swap-- -----io---- --system--<br>
-----cpu------<br>
r b swpd free buff cache si so bi bo in cs us sy<br>
id wa st<br>
0 0 0 2068584 0 12472 0 0 0 0 0 1745 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 82 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 77 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 109 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 92 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 80 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 87 0 0<br>
100 0 0<br>
0 0 0 2068576 0 12472 0 0 0 0 0 66 0 0<br>
100 0 0<br>
0 0 0 2068588 0 12472 0 0 0 0 0 130 0 0<br>
100 0 0<br>
0 0 0 2068588 0 12472 0 0 0 0 0 72 0 0<br>
100 0 0<br>
<br>
I have been able to replicate this issue in other OS templates (theirs<br>
is Ubuntu 11.10, but I have replicated in Ubuntu, Fedora, Centos,<br>
etc...) running the same kernel and vzctl version.<br>
<br>
I can not replicate this issue on the node.<br>
<br>
Wondering if anyone else has run across this issue and/or knows what<br>
might be causing it.<br>
<br>
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</blockquote></div>