flowcleaner running away with CPU

[Dean E. Weimer]

I have a FreeBSD 8.2-REALEASE-p5 system that is running as a Squid 
proxy server, after some complaints for internet performance I logged 
into the system to take a look, and discovered the flowcleaner process 
is consuming 100% on one CPU.  I did some searching, and have discovered 
that there have been some bugs in the past with this, and found the 
flowing command listed as a work around.

sysctl net.inet.flowtable.enable=0

I tried this, but there was no change, is this something that has to be 
done in the sysctl.conf configuration file that doesn't take effect 
until a reboot?  Or is there a process I can restart that will at least 
temporarily resolve this issue without completely interrupting internet 
traffic for a few hundred users?




last pid: 51636;  load averages:  1.03,  1.10,  1.09                    
      up 50+02:41:37  10:35:09
89 processes:  4 running, 71 sleeping, 14 waiting
CPU:  0.4% user,  0.0% nice, 49.7% system,  0.6% interrupt, 49.3% idle
Mem: 722M Active, 765M Inact, 415M Wired, 24M Cache, 213M Buf, 47M Free
Swap: 4061M Total, 212K Used, 4061M Free

   PID USERNAME  THR PRI NICE   SIZE    RES STATE   C   TIME   WCPU 
COMMAND
    11 root        2 171 ki31     0K    32K RUN     0 2019.8 100.00% 
idle
    19 root        1  76    -     0K    16K CPU0    0 349.3H 100.00% 
flowcleaner
58759 squid       1  45    0   626M   594M select  0 683:15  2.98% 
squid
     0 root        7   8    0     0K    96K -       1 1510.7  0.00% 
kernel
    12 root       14 -60    -     0K   224K WAIT    1 362:54  0.00% intr
    17 root        1  44    -     0K    16K syncer  1  61:43  0.00% 
syncer
  1095 root        1  44    0 96672K 75432K select  1  36:11  0.00% 
vmtoolsd
    13 root        1 -16    -     0K    16K -       1  16:10  0.00% 
yarrow


-- 
Thanks,
  Dean E. Weimer
  dweimer at dweimer.net
  http://www.dweimer.net/