PPPoE kernel panic when interface restarts or disconnects

elon_

Hi, I am running pfSense CE 2.7.2 I am noticing when PPPoE disconnect most of the time it will cause a kernel panic.

Here is the panic output from dmesg after it rebooted:

Fatal trap 12: page fault while in kernel mode
cpuid = 1; apic id = 01
fault virtual address	= 0x0
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff80f48ba5
stack pointer	        = 0x28:0xfffffe00631bacb0
frame pointer	        = 0x28:0xfffffe00631bad10
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 12 (swi1: netisr 3)
rdi: 00000000b1024200 rsi: fffff8009bb7b000 rdx: 0000000000000002
rcx: 0000000000000000  r8: ffffffff83a11090  r9: 0000000000000050
rax: 0000000000000000 rbx: fffff800b102426e rbp: fffffe00631bad10
r10: 000000000000001d r11: fff5ce9a908f8f8f r12: fffff80086017e00
r13: fffffe00631bacc0 r14: fffffe0009349000 r15: fffffe00631bacc0
trap number		= 12
panic: page fault
cpuid = 1
time = 1721446890
KDB: enter: panic

The ISP requires PPPoE to run on VLAN 35 and I have IPv6 enabled not sure if this will have anything to do with it.

elon_

I am using 2x '82574L Gigabit Network Connection' NICs

elon_

This is the full dump after the PPPoE interface was terminated: https://pastebin.com/XGPz6CRJ

Gertjan

@elon_ said in PPPoE kernel panic when interface restarts or disconnects:

I have IPv6 enabled not sure if this will have anything to do with it

Well, it was trying to "ip6_tryforward()" (whatever that might be) and that failed and took the system down.
That said, doing a " "ip6_tryforward()" while pppoe is negotiation the connection.
Is pppoe being used for IPv4 and IPv6 ? Like two pppoe connections ?

elon_

@Gertjan one PPPoE connection for both IPv4 and IPv6. This is the configuration page: