Date: Tue, 29 Jul 2003 18:36:49 +0000 (UTC) From: othermark <atkin901@yahoo.com> To: freebsd-stable@freebsd.org Subject: stable libmilter leaks kqueue descriptors? Message-ID: <slrnbidfm6.11jf.atkin901@adkinson245.f5net.com>
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A few weeks back I upgraded my mail server to -STABLE from a 4.2-STABLE
incarnation that had been running for years. Part of recompiling
everything on the box involved disassociating my use of the
sendmail port I was using and to use the base sendmail in -STABLE.
-STABLE builds with libmilter, so I simply recompiled one of my
milter clients with the milter headers, objs, etc that were produced
from buildworld. However, now I notice that the client (dccm
in this case -- www.rhyolite.com/dcc ) slowly uses all the descriptors
on the box and must be restarted.
I started logging it's use of descriptors over time via a shell
script and lsof, and found that it's leaking kqueue descriptors.
Has anyone:
1. noticed this problem with other libmilter linked clients that
you may be running.
2. have some ideas on how to track down this leakage? I've looked
at the dccm source and it seems to be using milter correctly
(as it was working fine with an older version of sendmail), but
maybe other excellent users have tracked down kqueue leakage
before.
3. was a new kqueue enabled libmilter introduced in the 8.x series of
upgrades of sendmail?
Here's a log excerpt, notice how the fd's for the sockets stay the
same, but the kqueue descriptors grow out of hand:
Wed Jul 16 15:24:09 PDT 2003
total fd:
78
kqueue fd:
56
ipv4 fd:
3
ps:
dcc 21265 0.0 2.0 4004 3084 ?? Ss 12:10PM 0:01.25
/var/dcc/libexec/dccm -l log -t CMN,5,10 -w whiteclnt
Wed Jul 16 15:41:28 PDT 2003
total fd:
78
kqueue fd:
56
ipv4 fd:
3
ps:
dcc 21265 0.0 2.0 4004 3084 ?? Ss 12:10PM 0:01.36
/var/dcc/libexec/dccm -l log -t CMN,5,10 -w whiteclnt
Wed Jul 16 16:17:36 PDT 2003
total fd:
109
kqueue fd:
87
ipv4 fd:
3
ps:
dcc 21265 0.0 1.9 4004 3072 ?? Ss 12:10PM 0:01.64
/var/dcc/libexec/dccm -l log -t CMN,5,10 -w whiteclnt
Wed Jul 16 18:36:17 PDT 2003
total fd:
137
kqueue fd:
115
ipv4 fd:
3
ps:
dcc 21265 0.0 2.0 4004 3080 ?? Ss 12:10PM 0:02.34
/var/dcc/libexec/dccm -l log -t CMN,5,10 -w whiteclnt
Wed Jul 16 20:36:41 PDT 2003
total fd:
165
kqueue fd:
143
ipv4 fd:
3
ps:
dcc 21265 0.0 2.0 4004 3080 ?? Ss 12:10PM 0:02.95
/var/dcc/libexec/dccm -l log -t CMN,5,10 -w whiteclnt
Thu Jul 17 01:17:06 PDT 2003
total fd:
193
kqueue fd:
171
ipv4 fd:
3
ps:
dcc 21265 0.0 2.0 4004 3084 ?? Ss 12:10PM 0:04.16
/var/dcc/libexec/dccm -l log -t CMN,5,10 -w whiteclnt
---
Mark
atkin901 at NOSPAM yahoo dot com
(!wired)?(coffee++):(wired);
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