CARP Problem - Fatal trap 12: page fault while in kernel mode
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Waiting for final CARP interface bringup….................
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x1005c
fault code = supervisor read, page not present
instruction pointer = 0x20:0xc083a0d1
stack pointer = 0x28:0xe62d4b88
frame pointer = 0x28:0xe62d4bd4
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 803 (ifconfig)
trap number = 12
panic: page fault
Uptime: 1m48s
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What pfSense version? What did you do prior to this happening?
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1.2.2 embedded.
This happened when I changed my virtual IPs from PARP to CARP. I think I made a bonehead mistake though as I assigned them all the same VHID. I rewrote the CF and restored my configuration prior to making those changes. I then changed the virtual ips to CARP and assigned them each their own VHID and everything was fine.
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Oh, yeah the GUI doesn't let you assign the same VHID, but if you manually changed your config, that input validation won't apply.
I opened a ticket to address this in a future release, it's low priority though because the GUI won't let you enter this kind of invalid configuration.
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I did it through the webgui. Do note that the interfaces were originally configured as PARP. So I did it as an edit and not a create. I knew I made a bonehead mistake because as soon as applied the config …the box went into reboot. I consoled in to see what was going on and that is how I got the error info above.
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Hrm, there shouldn't be any way even when you're switching from proxy ARP to CARP to accomplish that. I know the input validation works when adding, maybe it's missing when switching from one type to another. Thanks for the report.