pfSense

A couple users have reported a panic when using CBQ traffic shaping. It may also require using CBQ on VLAN interfaces.

db:0:kdb.enter.default>  bt
Tracing pid 12 tid 100039 td 0xfffff800053bf000
kdb_enter() at kdb_enter+0x37/frame 0xfffffe000043e610
vpanic() at vpanic+0x197/frame 0xfffffe000043e660
panic() at panic+0x43/frame 0xfffffe000043e6c0
trap_fatal() at trap_fatal+0x391/frame 0xfffffe000043e720
trap_pfault() at trap_pfault+0x4f/frame 0xfffffe000043e770
trap() at trap+0x286/frame 0xfffffe000043e880
calltrap() at calltrap+0x8/frame 0xfffffe000043e880
--- trap 0xc, rip = 0xffffffff80ec014e, rsp = 0xfffffe000043e950, rbp = 0xfffffe000043e980 ---
ether_8021q_frame() at ether_8021q_frame+0x2e/frame 0xfffffe000043e980
vlan_transmit() at vlan_transmit+0xc8/frame 0xfffffe000043e9f0
vlan_altq_start() at vlan_altq_start+0xb4/frame 0xfffffe000043ea20
cbqrestart() at cbqrestart+0x64/frame 0xfffffe000043ea50
rmc_restart() at rmc_restart+0x6f/frame 0xfffffe000043ea80
softclock_call_cc() at softclock_call_cc+0x141/frame 0xfffffe000043eb30
softclock() at softclock+0x79/frame 0xfffffe000043eb50
ithread_loop() at ithread_loop+0x23c/frame 0xfffffe000043ebb0
fork_exit() at fork_exit+0x7e/frame 0xfffffe000043ebf0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe000043ebf0

Attached is a textdump archive from a separate user with the same backtrace.