[OpenAFS] Re: OS X 10.5 oddity

Joel hashbang@gmail.com
Sun, 22 Feb 2009 02:01:00 -0600

On Sun, Feb 22, 2009 at 12:20 AM, Derrick Brashear <shadow@gmail.com> wrote:
> This belongs on openafs-info, since there's no code question or
> discussion here. Redirecting there.
> On Sun, Feb 22, 2009 at 1:11 AM, Joel <hashbang@gmail.com> wrote:
>> I'm at a loss of where to even turn to about this problem. I've used
>> OpenAFS on OSX for years, but recently I've been having some strange
>> issues. At seemingly random points in AFS operations, my client will
>> hang and ultimately contact to the fileserver will be lost, then
>> restored soon after.
>> Going into detail...
>> Using the OpenAFS 1.4.8 OSX package, with OSX 10.5.6.
>> When the client hangs, dmesg repeats this until the "afs: Lost contact
>> with file server..." message:
>> in_delayed_cksum_offset: ip_len 51200 (200) doesn't match actual length 214
>> which means pretty much what it says, that the length in the packet
>> doesn't match the actual on-wire length. It seems to always be 14
>> bytes shy (the size of the UDP header??). This packet never makes it
>> through, so I assume the client times out waiting for it and triggers
>> the "lost contact" state.
> You leave out details like what the hardware is. Since that function
> may be related to hardware offloading of IP checksumming, it could
> matter.

The machine is a mac pro, using the onboard Intel8254X NIC.