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18.7 Legacy Series / Kernel panic when unplugging WAN network interface
« on: October 01, 2018, 02:15:38 pm »
Hello everybody, I've been using opnsense for 9 months now. Before last week, all it was doing was just a multi-wan gateway and firewall, but now I'm implementing some more advanced configurations (like ipv6, zerotier, etc.).
Performing some tests, I've noticed that unplugging of my two wan interfaces (both of them show the same problem) I hit a kernel panic and everything hangs. Sometimes it reboots, sometimes it just sits and stops working.
Both of my wans are connected via PPPoE (one is a wlan connection, the other an ADSL) and this is the error I get:
I've also tried to follow this, but no luck:
https://www.netgate.com/docs/pfsense/hardware/tuning-and-troubleshooting-network-cards.html#Intel_igb.284.29_and_em.284.29_Cards
What could it be? Searching on the forum I've found some similar posts, related to PPPoE Wan devices, but I read things should have been fixed long ago. My opnsense version is OPNsense 18.7.4-amd64 - FreeBSD 11.1 RELEASE-p14 - LibreSSL 2.7.4
Thank you
Stefano
Performing some tests, I've noticed that unplugging of my two wan interfaces (both of them show the same problem) I hit a kernel panic and everything hangs. Sometimes it reboots, sometimes it just sits and stops working.
Both of my wans are connected via PPPoE (one is a wlan connection, the other an ADSL) and this is the error I get:
Code: [Select]
Fatal trap 12: page fault while in kernel mode
cpuid = 3; apic id = 03
fault virtual address = 0x0
fault code = supervisor read data, page not present
instruction pointer = 0x20:0xffffffff80c2ab63
stack pointer = 0x28:0xfffffe011abf2f60
frame pointer = 0x28:0xfffffe011abf2f70
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 (irq259: igb0:que 3)
I've also tried to follow this, but no luck:
https://www.netgate.com/docs/pfsense/hardware/tuning-and-troubleshooting-network-cards.html#Intel_igb.284.29_and_em.284.29_Cards
What could it be? Searching on the forum I've found some similar posts, related to PPPoE Wan devices, but I read things should have been fixed long ago. My opnsense version is OPNsense 18.7.4-amd64 - FreeBSD 11.1 RELEASE-p14 - LibreSSL 2.7.4
Thank you
Stefano