[  816.794045][T10381] PPP generic driver version 2.4.2
[  816.801287][T10381] NET: Registered PF_PPPOX protocol family
[  816.819586][T10381] l2tp_core: L2TP core driver, V2.0
[  816.827015][T10381] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  822.055589][T10460] ppp0: recursion detected
[  822.104461][    C2] ppp0: recursion detected
[  823.116566][T10419] ppp0: recursion detected
[  823.275057][T10419] xl2tpd (10419) used greatest stack depth: 22672 bytes left