TCP sessions hanging in FIN_WAIT_1?

Barrett Lyon blyon at
Mon Apr 2 15:11:41 UTC 2007

Generic kernel, I had some stuff in there related to the http accept  
filter but I removed all that when I noticed the problem.  I moved  
the traffic over to if_em for testing and the problem went away, when  
I brought it back to mxge the FIN_WAIT_1 issue came back.  This was  
without rebooting or changing anything other than the interface.


On Apr 2, 2007, at 2:31 AM, Andre Oppermann wrote:

> Barrett Lyon wrote:
>> I've been testing CURRENT for a bit and with a thousands of short   
>> lived HTTP sessions, CURRENT hangs most of the sessions in  
>> FIN_WAIT_1  status until the machine runs out of resources and  
>> causes the network  stack to stop performing.  The HTTP daemon I  
>> am playing with is  lighttpd-1.4.13, and I don't see this  
>> happening on any of the 6.2  test machines I run.
>> There's nothing unusual about the build other than the interface  
>> card  running the mxge driver.  Has anyone else seen reports of  
>> this?  I  have seen this behavior on all source up to today's tree.
> Are you running a pure GENERIC kernel or do you have any other  
> modifications?
> What about firewall packages (ipfw, pf, ipfilter)?
> -- 
> Andre

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