[syslinux] VirtualBox virtual machine hangs after ISOlinux upgrade 4.05->5.10 and up.

[Col. Kurtz]

Hello,
I have specialized linux installation which uses ISOLinux bootloader. Recently isolinux version has changed from 4.05 to 5.10. From that time there is a problem with VirtualBox VM, It crashes (guru meditation) on attempt to boot from HDD or hangs on installation from CD.
Strange part is, the very same ISO on ESXi VM works like a charm. Also burned on CD and started on "real" hardware works.

Tried VirtualBox 4.1.14 on Linux and Windows 4.1.12. Tried to change VM settings, no luck.

After "Guru meditation" crash there is a log file with last line:
fatal error in recompiler cpu: Trying to execute code with memory type addr_code=00000000631b0020 addend=00007fceea68e000 at 00000000631b04fd. (iHandlerMemType=0x38 iMMIOMemType=0x30)

I will appreciate any help, Thank You.