Hi, On Fri, Jun 01, 2018 at 08:40:34AM +0200, David Palma wrote: ... > > > > 1-- While making the skbuff over 802.15.4 in __ip6_append_data we MUST > > reserve two bytes at the end for CRC. > > > > 2-- Even after adding the MAC header and 6lowpan header we have space > > available on top of the skb (between data and head mac_header =3D 117). So = > > in > > ieee802154_tx kernel can check if 2 bytes is not available at end of the > > packet it can move the packet up to make space at the end. > > > > Thanks > > Rabi > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-wpan" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > Hi, > > Maybe this is connected to: > > - https://bugzilla.kernel.org/show_bug.cgi?id=195059 ? I send recently a fix for that. Thanks for the very detailed testing scripted. I could reproduce this error in my setup. It doesn't occur afterwards anymore. Question is here still if this is not a bug in the upper layer... I send another question related to general transmit flow. If nobody answers then I would go for this fix... btw: I remember some time ago that I asking me how tail/headroom works exactly because this reason. - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-wpan" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
