freedos under qemu failure with nvmm

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

Hello,

I tried to install FreeDOS under Qemu in NetBSD 10.1 using nvmm 
acceleration driver.


I get an error like this when almost installed on the virtual disk:

qemu-system-i386: NVMM: Unexpected VM exit code 0xffffffffffffffff [hw=0x9]
qemu-system-i386: NVMM: Failed to execute a VCPU.
[1]   Abort trap (core dumped) qemu-system-i386 -m 64 -accel nvmm -smp 1 
-dri...


I removed nvmm acceleration and I was able to end the installation 
without acceleration but it was painly slow.

I have been able to virtualize a full Debian GNU/Linux system using 
nvmm, no problems at all. Why nvmm fails with FreeDOS?

Thanks so much.
Ramiro.