FreeBSD 8.0 - network stack crashes?

[Tom Judge]

Tom Judge wrote:
> Weldon S Godfrey 3 wrote:
>>
>>
>> If memory serves me right, sometime around 9:37am, Pieter de Goeje 
>> told me:
>>
>>> Are you perhaps using em(4)? There was an mbuf leak in the driver, 
>>> which was fixed recently.
>>> You can check mbuf usage with netstat -m.
>>>
>>
>> we are using onboard NICs on the Dell using the bce driver.  We did 
>> try several times to see if using an intel PCIexpress card using the 
>> em driver, and we had the same symptoms.
>>
>> Could the bce driver have the same leak?
> 
> The bce driver does not have a memory leak, it does however have a bug 
> which causes memory fragmentation leading to denied mbuf allocation.
> 
> 
> There is a work around for this in current, you can get the patch like 
> this:
> 
> http://svn.freebsd.org/viewvc/base/head/
> 
That should be:

  svn diff -r 198319:198320 http://svn.freebsd.org/base/head


> You need to put
> 
> options        BCE_JUMBO_HDRSPLIT
> 
> In your kernel to enable the work arround.
> 
> Tom
> 
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