[  822.050060][T10309] PPP generic driver version 2.4.2
[  822.056732][T10309] NET: Registered PF_PPPOX protocol family
[  822.088445][T10309] l2tp_core: L2TP core driver, V2.0
[  822.094499][T10309] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  827.218680][T10381] ppp0: recursion detected
[  827.227752][    C0] ppp0: recursion detected
[  828.275746][T10342] ppp0: recursion detected
[  828.430260][T10342] xl2tpd (10342) used greatest stack depth: 22400 bytes left