Re: skb_under_panic in ip_tunnel_xmit

2016-03-05 Thread Yuriy M. Kaminskiy
Eric Dumazet writes: > On mer., 2016-03-02 at 09:11 -0800, Francesco Ruggeri wrote: >> I can consistently get this panic on 4.4.1 as well as 3.18. >> >> [ 2076.264975] gre: GRE over IPv4 demultiplexor driver >> [ 2076.269326] ip_gre: GRE over IPv4 tunneling driver >> [ 2076.274464] conntrack: g

Re: skb_under_panic in ip_tunnel_xmit

2016-03-02 Thread Francesco Ruggeri
> I am not sure we want to support ~64K of headers. > > Is this something real, or just another root-exploit > linux-bug-of-the-day trick ? > > When I want to reboot my host I usually type 'reboot', as it looks nicer > to me ;) > Thanks Eric. My point was that an accidental route misconfiguration,

Re: skb_under_panic in ip_tunnel_xmit

2016-03-02 Thread Eric Dumazet
On mer., 2016-03-02 at 09:11 -0800, Francesco Ruggeri wrote: > I can consistently get this panic on 4.4.1 as well as 3.18. > > [ 2076.264975] gre: GRE over IPv4 demultiplexor driver > [ 2076.269326] ip_gre: GRE over IPv4 tunneling driver > [ 2076.274464] conntrack: generic helper won't handle pro

skb_under_panic in ip_tunnel_xmit

2016-03-02 Thread Francesco Ruggeri
I can consistently get this panic on 4.4.1 as well as 3.18. [ 2076.264975] gre: GRE over IPv4 demultiplexor driver [ 2076.269326] ip_gre: GRE over IPv4 tunneling driver [ 2076.274464] conntrack: generic helper won't handle protocol 47. Please consider loading the specific helper module. [ 2088.8