On Wed, Jan 26, 2005 at 10:32:47PM -0800, David S. Miller wrote:

On Wed, 26 Jan 2005 14:25:12 +0100
Lennert Buytenhek [off-list ref] wrote:

quoted

I've thought about this a bit, and the only sane way of doing recursion
detection that doesn't involve 'struct net_device' would be to keep track
of the recursion depth (perhaps per-CPU as you suggest) and tossing the
packet when it exceeds some random value, right?

Yes, that's the idea.

per CPU only works in preemptive kernel if you have preemption
disabled all the time. Do you? 

Seems not likely to me.

-Andi