Thank you Benoit, It was exactly what I needed.
On Mon, 28 Mar 2022 at 17:49, Benoit Ganne (bganne) <bga...@cisco.com> wrote: > Yes, you can call 'gdb_show_traces()' from gdb - but you'll need to have > tracing enable beforehand of course. > If that's not enough, you can enable trajectory tracing: > https://git.fd.io/vpp/tree/src/vlib/buffer.h#n101 and inspect them via > 'gdb_dump_trajectory_trace()'. > > ben > > > -----Original Message----- > > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Stanislav > > Zaikin > > Sent: Monday, March 28, 2022 17:44 > > To: vpp-dev <vpp-dev@lists.fd.io> > > Subject: [vpp-dev] trace in gdb > > > > Hello folks, > > > > Is there a way to print out the trace for the packet buffer in gdb? > > For me VPP crashes when a packet goes wrongly to l2-input with RX > > interface without any l2 configuration. I'm using linux-cp and it looks > > like the packet doesn't hit the "linux-cp-xc-ip4" node for some reason. > > And what's strange is that it works for some time and only then crashes > > (so tracin the packet before crash doesn't help me at all). > > > > I want to see what node was before l2-input. > > > > > > -- > > > > Best regards > > Stanislav Zaikin > -- Best regards Stanislav Zaikin
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