Bug 240533 - pf stops purging IPv6 FIN_WAIT_2 states?
Summary: pf stops purging IPv6 FIN_WAIT_2 states?
Status: Closed DUPLICATE of bug 240532
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 11.2-RELEASE
Hardware: amd64 Any
: --- Affects Some People
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-09-12 11:23 UTC by Peter Eriksson
Modified: 2019-09-12 11:56 UTC (History)
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Description Peter Eriksson 2019-09-12 11:23:50 UTC 
I just noticed that our production servers seems to be accumulating FIN_WAIT_2 state entries in PF (atleast IPv6 ones).

# pfctl -ss | egrep FIN_WAIT_2 | egrep -v 2001 | wc -l
     386
# pfctl -ss | egrep FIN_WAIT_2 | egrep  2001 | wc -l
   23141

Using workaround from bug 222126 seems to wake up the "pf purge" kernel thread again 
(atleast for a while):

# echo "set timeout interval 5" | pfctl -mf -

FreeBSD 11.2-RELEASE-p10
Dell PowerEdge R730xd
256GB RAM
(NFS & SMB fileservers)
Comment 1 Peter Eriksson 2019-09-12 11:56:26 UTC 

*** This bug has been marked as a duplicate of bug 240532 ***