OPNsense Forum

English Forums => Zenarmor (Sensei) => Topic started by: OPNDeciso on July 19, 2026, 07:38:32 PM

Title: OPNsense 26.7 Kernel Panic with Zenarmor 2.6.2
Post by: OPNDeciso on July 19, 2026, 07:38:32 PM
Has anyone seen similar crashes on OPNsense 26.7, particularly when protecting a WireGuard interface with Zenarmor?

Dell OptiPlex 3010
Intel 82575EB NICs (igb)

OPNsense 26.7
FreeBSD 15.1
Zenarmor Engine 2.6.2
Suricata installed

Zenarmor configuration
Routed Mode (L3)
Emulated Netmap Driver
Protected interfaces: igb0 (LAN) and wg1 (WireGuard)

Panic consistently references:
generic_mbuf_dtor()
Fatal trap 12: page fault while in kernel mode

Prior to the panic I see:
generic_mbuf_dtor Error: no netmap adapter on device
generic_netmap_unregister Emulated adapter for igb0 deactivated
generic_netmap_dtor Emulated netmap adapter for igb0 destroyed

For additional testing I'll remove wg1 from Zenarmor protection.
Title: Re: OPNsense 26.7 Kernel Panic with Zenarmor 2.6.2
Post by: sy on July 20, 2026, 09:56:57 AM
Hi,

There is no known issue with WG interface.

Could you please provide the logs and configuration by following the steps outlined in the link below? I kindly request that you select all checkboxes. 
https://www.zenarmor.com/docs/support/reporting-bug␀

Title: Re: OPNsense 26.7 Kernel Panic with Zenarmor 2.6.2
Post by: OPNDeciso on July 20, 2026, 07:28:45 PM
I switched/rotated to one of my other homelab OPNsense boxes and haven't seen this condition. I'll send logs and configs if I do.