[Bug 222126] pf is not clearing expired states

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222126

--- Comment #31 from hlh at restart.be ---
(In reply to Kristof Provost from comment #27)

When the problem occurs, no more line in the dtrace log.
Here are the last 20 lines:

[root at norquay ~]# tail -n 20 /var/log/pf.dtrace.log-before 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  3   2257    pf_purge_expired_states:entry 
  3   2258   pf_purge_expired_states:return 
  3   2258   pf_purge_expired_states:return 
  3   2257    pf_purge_expired_states:entry 
  3   2258   pf_purge_expired_states:return 
  3   2258   pf_purge_expired_states:return 
  3   2257    pf_purge_expired_states:entry 
  3   2258   pf_purge_expired_states:return 
  3   2258   pf_purge_expired_states:return 
  1   2257    pf_purge_expired_states:entry 
  1   2258   pf_purge_expired_states:return 
  1   2258   pf_purge_expired_states:return 

then I run:
[root at norquay ~]# echo "set timeout interval 5" | pfctl -mf -

And the dtrace log resume; the first 20 lines are:

[root at norquay ~]# head -n 20 /var/log/pf.dtrace.log
CPU     ID                    FUNCTION:NAME
  1   2257    pf_purge_expired_states:entry 
  1   2258   pf_purge_expired_states:return 
  1   2258   pf_purge_expired_states:return 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  0   2257    pf_purge_expired_states:entry 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 
  0   2258   pf_purge_expired_states:return 

PS I have the 2 log files and we can go back more then 20 lines.

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