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Message-Id: <200704052041.l35KfKXo046744@www.freebsd.org>
Date: Thu, 5 Apr 2007 20:41:20 GMT
From: Nathan Ferch<nf+fbsd@marginal.net>
To: freebsd-gnats-submit@FreeBSD.org
Subject: RELENG_6 em(4) watchdog timeout with IPSEC/mpsafenet
X-Send-Pr-Version: www-3.0

>Number:         111286
>Category:       kern
>Synopsis:       RELENG_6 em(4) watchdog timeout with IPSEC/mpsafenet
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Apr 05 20:50:07 GMT 2007
>Closed-Date:    Thu Apr 05 21:02:39 GMT 2007
>Last-Modified:  Thu Apr  5 21:40:08 GMT 2007
>Originator:     Nathan Ferch
>Release:        6,2-RELEASE, 6.2-STABLE
>Organization:
>Environment:
FreeBSD threepwood 6.2-STABLE FreeBSD 6.2-STABLE #8: Thu Apr  5 12:40:54 CDT 2007     root@threepwood:/usr/obj/usr/src/sys/THREEPWOOD  i386
>Description:
I am getting frequent interface lockups and watchdog timeouts with em(4) when IPSEC is loaded with mpsafenet enabled or IPSEC is compiled into the kernel.

I have not been able to reproduce the problem with other interfaces.
>How-To-Repeat:
compile kernel:
+options                        IPSEC
+options                        IPSEC_ESP
+options                        IPSEC_DEBUG

generate network traffic:

nttcp -D  -l 65535 -T 10.129.0.2 (repeat until hang/watchdog timeout)

>Fix:
The watchdog timeout will usually reset the interface and allow operation after a few seconds.

In the case the watchdog timeout does not kick in, bringing the interface down then up will have the same effect.
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: erwin 
State-Changed-When: Thu Apr 5 21:02:28 UTC 2007 
State-Changed-Why:  
Duplicate of kern/111285. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=111286 

From: "Nathan A. Ferch" <nf+fbsd@marginal.net>
To: bug-followup@FreeBSD.org
Cc:  
Subject: Re: kern/111286: RELENG_6 em(4) watchdog timeout with IPSEC/mpsafenet
Date: Thu, 5 Apr 2007 16:02:05 -0500

 duplicate of kern/11285, my apologies...
 --
 nathan a ferch
 nf@marginal.net
 "No." -Spengler
>Unformatted:
