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Date:      Thu, 14 Sep 2006 14:40:10 -0500 (CDT)
From:      "Douglas K. Rand" <rand@meridian-enviro.com>
To:        FreeBSD-gnats-submit@FreeBSD.org
Subject:   kern/103281: pfsync reports bulk update failures
Message-ID:  <200609141940.k8EJeAF1027489@delta.meridian-enviro.com>
Resent-Message-ID: <200609141950.k8EJoI3N067339@freefall.freebsd.org>

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>Number:         103281
>Category:       kern
>Synopsis:       pfsync reports bulk update failures
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Sep 14 19:50:18 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Douglas K. Rand
>Release:        FreeBSD 6.2-PRERELEASE i386
>Organization:
Meridian Environmental Technology, Inc.
>Environment:
System: FreeBSD luna-0.meridian-enviro.com 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #12: Thu Sep 14 00:03:32 CDT 2006 rand@luna-0.meridian-enviro.com:/usr/obj/usr/src/sys/LUNA i386
>Description:
	On a pair of redundant firewalls using carp and pfsync the kernel
	reports:
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: received bulk update start
		pfsync: failed to receive bulk update status

	But it seems that the bulk updates are working. I tested by
	establishing a TCP session across the firewall and kept that
	session idle. (I ran tcpdump to verify no packets were being
	sent.) I then rebooted the primary firewall and when it came up
	and while the system was trying to do bulk updates I ran
	"pfsync -s state" and saw the state for my idle TCP session. 
	I'm not sure this is a valid test, but with out a pfsync decoder
	in tcpdump I didn't know of a better one.

	Scott Ullrich in http://lists.freebsd.org/pipermail/freebsd-pf/2006-June/002231.html
	thinks it may be related to the holddown timer.

>How-To-Repeat:
	Setup a pair of carp/pfsync firewalls and with an idle TCP stream
	verify that the state shows up on a freshly rebooted master even
	though the kernel will complain: pfsync: failed to receive bulk update status

>Fix:

	I do not have a fix or workaround.

>Release-Note:
>Audit-Trail:
>Unformatted:



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