"Unicast, no dst" warning from IPoIB

2010-03-22 Thread Or Gerlitz
Roland, Recently (e.g now with 2.6.34-rc2) I came across this warning from ipoib_start_xmit. I wasn't sure if it suggests that there's some real problem or not. It happens few times and then vanishes, for some reason the type is always 0002 (ETH_P_AX25) ib0: Unicast, no dst: type 0002,

Re: "Unicast, no dst" warning from IPoIB

2010-03-22 Thread Eli Cohen
On Mon, Mar 22, 2010 at 11:55:18AM +0200, Or Gerlitz wrote: > > Recently (e.g now with 2.6.34-rc2) I came across this warning from > ipoib_start_xmit. > I wasn't sure if it suggests that there's some real problem or not. It happens > few times and then vanishes, for some reason the type is always

Re: "Unicast, no dst" warning from IPoIB

2010-03-22 Thread Moni Shoua
> Why did we get this? It could happen since the IPoIB neighbour that > the specific instance of IPoIB CM is pointing to might have SKBs in > its queue. When REP arrives for this connection, it will re-queue all > the queued SKBs again but there may be no dst for them anymore. > Do you mean that

Re: "Unicast, no dst" warning from IPoIB

2010-03-22 Thread Eli Cohen
On Mon, Mar 22, 2010 at 06:13:08PM +0200, Moni Shoua wrote: > > Do you mean that it ("no dst for them anymore.") happened due to aging of the > neigh? Yes, the networking stack could do that while we were wating for a REP. > My intuition tells me that it should be a very rare scenario, if I gues