Hello. I faced the same issue with qemu, nvmm and freedos. Tried to debug with no luck. I found a workaround - run qemu with no acceleration, install freedos, then run it with acceleration turned on. This issue only happens when is it is being installed.
чт, 13 нояб. 2025 г., 23:15 Ramiro Aceves <[email protected]>: > > 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. > > > >
