On 04/18/2017 01:12 PM, Murali Karicheri wrote: > On 04/17/2017 05:38 PM, Cong Wang wrote: >> Hello, >> >> On Thu, Apr 13, 2017 at 9:36 AM, Murali Karicheri <m-kariche...@ti.com> >> wrote: >>> On 03/22/2017 11:04 AM, Murali Karicheri wrote: >>>> This is going directly to the slave Ethernet interface. >>>> >>>> When I put a WARN_ONCE, I found this is coming directly from >>>> mld_ifc_timer_expire() -> mld_sendpack() -> ip6_output() >>>> >>>> Do you think this is fixed in latest kernel at master? If so, could >>>> you point me to some commits. >>>> >>>> >>> Ping... I see this behavior is also seen on v4.9.x Kernel. Any clue if >>> this is fixed by some commit or I need to debug? I see IGMPv6 has some >>> fixes on the list to make it similar to IGMPv4. So can someone clarify this >>> is >>> is a bug at IGMPv6 code or I need to look into the HSR driver code? >>> Since IGMPv4 is going over the HSR interface I am assuming this is a >>> bug in the IGMPv6 code. But since I have not experience with this code >>> can some expert comment please? >>> >> >> How did you configure your network interfaces and IPv4/IPv6 multicast? >> IOW, how did you reproduce this? For example, did you change your >> HSR setup when this happened since you mentioned >> NETDEV_CHANGEUPPER? >> > Thanks for responding! Really appreciate. > > I didn't set up anything explicitly for IPv4/IPv6 multicast. As part of > my testing, I dump the packets going through the slave interfaces attached > to the hsr interface (for example my Ethernet interfaces eth2 and eth3 > are attached to the hsr interface and I dump the packets at the egress > of eth2 and eth3 in my driver along with that at hsr xmit function). As > soon as I create the hsr interface, I see a bunch of packets going directly > through the lower interface, not through the upper one (i.e hsr interface) > and these are of eth_type = 86 dd. Please ignore my reference to > NETDEV_CHANGEUPPER for now as it was wild guess. > > I have not done any debugging, but the WARN_ONCE which I have placed > in the lower level driver looking for eth_type = 86 dd provided the > above trace. > Here is the command I have used to create the hsr interface...
ip link add name hsr0 type hsr slave1 eth2 slave2 eth3 supervision 45 version 1 -- Murali Karicheri Linux Kernel, Keystone
