-CURRENT crashdumps, mbuf corruption

Travis Mikalson bofh at terranova.net
Mon Dec 5 14:30:10 PST 2005


This looks like an mbuf corruption problem, can you take a look at these?

I've got two different ones, one seems to involve all of my network 
interfaces and another seems just to involve if_ath. I'm not an expert 
at reading this, but both crashes look like they choked on corrupt mbufs.

I have WITNESS and INVARIANT running in that kernel, I don't know if 
they are of any use for figuring this problem out.

Is there any additional information available that I can retrieve that 
can help? I'm told that mbuf corruption problems are very hard to track 
down, I'm wondering if there's anything I can do.

FYI, this box's job in life at the moment while I've got it as 
stripped-down as possible is to shuffle packets back and forth between 
one if_ath (in hostap mode) and one if_vr using if_bridge. ipfw is in 
there somewhere but net.link.bridge.pfil_bridge is off and so is 
net.link.ether.ipfw and net.link.bridge.ipfw.

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