On Sun, 2017-12-10 at 12:38 +0800, Xin Long wrote: > On Sun, Dec 10, 2017 at 3:36 AM, Cong Wang <xiyou.wangc...@gmail.com> > wrote: > > On Fri, Dec 8, 2017 at 12:45 AM, Xin Long <lucien....@gmail.com> > > wrote: > > > This isn't a sctp problem, but mld's, seems when lo's mtu became > > > 0, > > > it allocs a skb without enough space in add_grec(): > > > > Shouldn't we just set its min_mtu to ETH_MIN_MTU? > > No idea why there's no min_mtu limitation for lo dev.
Because it wont solve this bug. ETH_MIN_MTU is really about IPv4.