[  131.504660][ T1721] PPP generic driver version 2.4.2
[  131.510623][ T1721] NET: Registered PF_PPPOX protocol family
[  131.533197][ T1721] l2tp_core: L2TP core driver, V2.0
[  131.539697][ T1721] l2tp_ppp: PPPoL2TP kernel driver, V2.0
[  136.784523][ T1800] ppp0: recursion detected
[  137.849056][ T1759] ppp0: recursion detected
[  143.931322][    C0] clocksource: Watchdog remote CPU 2 read timed out