More data on 7.2-RELEASE "hangs"

[Marc G. Fournier]

On Wed, 13 May 2009, John Baldwin wrote:

> On Wednesday 13 May 2009 3:09:33 am Marc G. Fournier wrote:
>>
>> Don't know if this helps with anything, but it just hung after 2days again
>> ... nothing on the console ... top process running at the time shows the
>> following ... anything there look "concerning"?
>
> Is this a 2 CPU system?  If so, both CPUs are actually running something, so
> it is not a deadlock per se.
>
>> 99402 www         1  96    0   163M 29892K CPU1   1   0:03  0.00% httpd
>> 13635     88     34  96    0 92340K 25604K CPU0   0   0:00  0.05% mysqld

Here is what vmstat shows ~10 minutes before (or as) it hung solid last 
time.  I didn't think to save the one that ran just before this one (the 
script runs every 5 minutes), but for the 'r b w' columns 'b' was around 
10ish, while 'w' was 0 ... within a 5 minute period of time, 'w' 
literally skyrockets:

  procs      memory      page                    disks     faults 
cpu
  r b w     avm    fre   flt  re  pi  po    fr  sr da0 pa0   in   sy   cs us sy id
107 266 122 16155620   23084  3255  22   1   2  3358 1605   0   0  377 17835 5231 19  7 73
  6 285 382 16446348   22532 111705 21155 1391 10049 51966 2187328 143   0 36344 499098 423971  3  2 95
  0 73 386 16440468   23072  7052 1155  85  44  1292  73 372   0 1030 18631 8334 18 12 70
  0 77 388 16440468   23088   126 1050   0   6    21  27 169   0  521 4186 4125  2  3 94
  0 66 389 16440468   23104     4 713   0  13    44  58 227   0  352 2217 3504  0  5 95

>
> -- 
> John Baldwin
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----
Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
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