crash adding vlan on carp master

[Michele]

Hi,
while adding a new vlan on a lagg interface on the master in a carp configuration, the system crashes.
Adding vlans on the slave do not present the same problem.

If I try to add other vlans on the master it crashes again.

Version of pfSense is 2.5.2

This is the first time this has happened after years of service and several vlans added in this system, but I recently upgraded to 2.5.2.

These are the last lines in the dump.

Sleeping thread (tid 100808, pid 40745) owns a non-sleepable lock
KDB: stack backtrace of thread 100808:
sched_switch() at sched_switch+0x630/frame 0xfffffe005e84a340
mi_switch() at mi_switch+0xd4/frame 0xfffffe005e84a370
sleepq_timedwait() at sleepq_timedwait+0x2f/frame 0xfffffe005e84a3b0
_sleep() at _sleep+0x1c8/frame 0xfffffe005e84a430
pause_sbt() at pause_sbt+0xf1/frame 0xfffffe005e84a460
e1000_read_phy_reg_mdic() at e1000_read_phy_reg_mdic+0xed/frame 0xfffffe005e84a4a0
e1000_enable_phy_wakeup_reg_access_bm() at e1000_enable_phy_wakeup_reg_access_bm+0x3f/frame 0xfffffe005e84a4c0
e1000_update_mc_addr_list_pch2lan() at e1000_update_mc_addr_list_pch2lan+0x3a/frame 0xfffffe005e84a500
em_if_multi_set() at 
<6>carp: 11@lagg0.6: MASTER -> BACKUP (more frequent advertisement received)
<6>carp: 13@lagg0.20: MASTER -> BACKUP (more frequent advertisement received)
em_if_multi_set+0x1d1/frame 0xfffffe005e84a550
iflib_if_ioctl() at iflib_if_ioctl+0x119/frame 0xfffffe005e84a5c0
if_addmulti() at if_addmulti+0x442/frame 0xfffffe005e84a650
in_joingroup_locked() at in_joingroup_locked+0x267/frame 0xfffffe005e84a710
in_joingroup() at in_joingroup+0x52/frame 0xfffffe005e84a750
pfsyncioctl() at pfsyncioctl+0x7d4/frame 0xfffffe005e84a7d0
ifioctl() at ifioctl+0x499/frame 0xfffffe005e84a890
kern_ioctl() at kern_ioctl+0x2b7/frame 0xfffffe005e84a8f0
sys_ioctl() at sys_ioctl+0x101/frame 0xfffffe005e84a9c0
amd64_syscall() at amd64_syscall+0x387/frame 0xfffffe005e84aaf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe005e84aaf0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8004544fa, rsp = 0x7fffffffe3c8, rbp = 0x7fffffffe410 ---
panic: sleeping thread
cpuid = 0
time = 1678699264
KDB: enter: panic

I can send the full dump if needed