Recent security patch cause reboot loop on 11.1 RELEASE

[Denis Polygalov]

What I did is following:

# uname -a
FreeBSD my_host_name 11.1-RELEASE-p10 FreeBSD 11.1-RELEASE-p10 #0: Tue
May  8 05:21:56 UTC 2018
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC  amd64

# freebsd-update fetch
Looking up update.FreeBSD.org mirrors... 3 mirrors found.
Fetching metadata signature for 11.1-RELEASE from update6.freebsd.org... done.
Fetching metadata index... done.
Inspecting system... done.
Preparing to download files... done.

The following files will be updated as part of updating to 11.1-RELEASE-p11:
/boot/kernel/kernel

Installing this update cause endless reboot loop.

# cat /boot/loader.conf
kern.maxfiles="32768"
zfs_load="YES"
linux_load="YES"
linprocfs_load="YES"
linsysfs_load="YES"

# dmesg |grep CPU
CPU: Intel(R) Xeon(TM) CPU 3.40GHz (3400.19-MHz K8-class CPU)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
SMP: AP CPU #1 Launched!
SMP: AP CPU #3 Launched!
SMP: AP CPU #2 Launched!
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
acpi_perf0: <ACPI CPU Frequency Control> on cpu0
est: CPU supports Enhanced Speedstep, but is not recognized.
est: CPU supports Enhanced Speedstep, but is not recognized.
est: CPU supports Enhanced Speedstep, but is not recognized.

The machine is HP ProLiant ML350

Regards,
Denis