Date: Sun, 29 Aug 2010 10:09:20 -0400 From: Mike Tancsa <mike@sentex.net> To: freebsd-stable@freebsd.org Cc: andre@freebsd.org Subject: syncache errors Message-ID: <201008291409.o7TE9QCJ082862@lava.sentex.ca>
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After upgrading to a recent STABLE, I have been seeing the following
sporadic errors
Aug 28 04:15:15 smarthost2 kernel: TCP: [xx.yy.165.120]:53617 to
[xx.yy.164.50]:25; syncache_socket: Socket create failed due to
limits or memory shortage
this is with
FreeBSD 8.1-STABLE #7: Wed Aug 25 15:32:05 EDT 2010
and the previous kernel was from July 20th.
The odd thing is that the error is triggered from a RELENG_6 host
only it would seem. I noticed there are a number of syncache and tcp
updates to RELENG_8, is it possible this is related ? I dont have any
specific tweaks in /etc/sysctl.conf
other than
net.inet.tcp.log_in_vain: 1
net.inet.udp.log_in_vain: 1
net.inet.tcp.syncache.rst_on_sock_fail: 1
net.inet.tcp.syncache.rexmtlimit: 3
net.inet.tcp.syncache.hashsize: 512
net.inet.tcp.syncache.count: 0
net.inet.tcp.syncache.cachelimit: 15360
net.inet.tcp.syncache.bucketlimit: 30
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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