Debian 11 guest installer crash and reboot

[John Mok <a9121431@xxxxxxxxx>]

Hi all,

Tried to install Debian 11 guest using netinst, but the installer
crashed and reboot automatically.

 Host: Xen 4.11.4 on Debian 10
Guest: Debian 11 (kernel 5.10)

Here is the steps to reproduce the problem:-
1) Either guest BIOS or OVMF boot
2) Select "Expert install" on installation menu

Then, the guest crashed and reboot.

Any idea why newer Debian 11 failed to install as guest ?

Thanks a lot.

John Mok