Kernel panic on EC2

[valpackett]

Created a VM on Amazon EC2: HardenedBSD-11-STABLE-v46.14 (ami-879ac2e1).
Updated to the latest version with hbsd-update:

FreeBSD 11.0-STABLE-HBSD #0 : Sun May  7 01:14:22 UTC 2017
    root@updater-01:/usr/obj/usr/src/sys/HARDENEDBSD amd64
FreeBSD clang version 4.0.0 (tags/RELEASE_400/final 297347) (based on LLVM 4.0.0)
XEN: Hypervisor version 4.2 detected.
HBSD: initialize and check HardenedBSD features (version 46).

Installed secadm and secadm-kmod packages.

kldload secadm succeeds, but starting any process after that (even just running ls) results in a panic:

login: Security policy loaded: HardenedBSD SECADM Module (secadm)


Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address	= 0x30
fault code		= supervisor read data, page not present
instruction pointer	= 0x20:0xffffffff8221eb32
stack pointer	        = 0x28:0xfffffe004f85e3b0
frame pointer	        = 0x28:0xfffffe004f85e720
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		= 81659 (kldstat)
trap number		= 12
panic: page fault
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff80a78337 at kdb_backtrace+0x67
#1 0xffffffff80a389d6 at vpanic+0x186
#2 0xffffffff80a38a53 at panic+0x43
#3 0xffffffff80e9cd82 at trap_fatal+0x322
#4 0xffffffff80e9cdd9 at trap_pfault+0x49
#5 0xffffffff80e9c58e at trap+0x29e
#6 0xffffffff80e7f061 at calltrap+0x8
#7 0xffffffff80a45510 at sysctl_root_handler_locked+0x90
#8 0xffffffff80a44d54 at sysctl_root+0x1c4
#9 0xffffffff80a452b8 at userland_sysctl+0x148
#10 0xffffffff80a4512f at sys___sysctl+0x5f
#11 0xffffffff80e9d7aa at amd64_syscall+0x55a
#12 0xffffffff80e7f34b at Xfast_syscall+0xfb
Uptime: 4m13s
Automatic reboot in 15 seconds - press a key on the console to abort

Building the kernel module from source instead of pkg installing didn't help.