Current panics on connecting disks to a LSI-3108 controller

Hi,

I have this Supermicro SUPERSERVER®2028TP
Which hold four nodes each with a X10DRT-PT motherboard
and a LSI-3108 SAS controller connecting to 6 disks.

Trying to run the most recent current snapshot on it.
# uname -a
FreeBSD quadbox-d.digiware.nl 13.0-CURRENT FreeBSD 13.0-CURRENT #0 
r363032: Thu Jul  9 04:13:17 UTC 2020 
root_at_releng1.nyi.freebsd.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64

I have installed the OS on a SATA flash DOM.
Booting works fine as long as there are no disks connected to LSI-3108 
controller.
Booting with SAS disks connected results in a panic.
Attaching a SAS disk to the LSI-3108 controller give a panic as well.



AVAGO MegaRAID SAS FreeBSD mrsas driver version: 07.709.04.00-fbsd
mfi0: <Invader> port 0x6000-0x60ff mem 
0xc7300000-0xc730ffff,0xc7200000-0xc72fffff irq 26 at device
0.0 numa-domain 0 on pci3
mfi0: Using MSI
mfi0: Megaraid SAS driver Ver 4.23
mfi0: FW MaxCmds = 928, limiting to 128
mfi0: MaxCmd = 928, Drv MaxCmd = 128, MaxSgl = 70, state = 0xb73c03a0
.....
mfi0: 54944 (boot + 6s/0x0020/info) - Firmware initialization started 
(PCI ID 005d/1000/0809/15d9)
pcib4: <ACPI PCI-PCI bridge>mfi0: 54945 (boot + 6s/0x0020/info) - 
Firmware version 4.290.00-4536


I have posted screenshots of the panic at:
     www.tegenbosch28.nl/FreeBSD/Crash-LSI3108

But basically it crashes in
     mfi_tbolt_send_frame() +0x132

So is there anybody out there that can help me with analyzing and fixing 
this panic?

Thanx,
--WjW