id summary reporter owner description type status component version resolution keywords cc guest host 3947 NetBSD-5.0 doesn't work without VT-x/AMD-V Rapenne "Hello I'm using VirtualBox very often, this is the first time I report a bug for a software, I hope to make a ""good ticket"". I just downloaded the netbsd-5.0 iso file, I verified the md5 checksum and it's right. I set up a virtual machine in virtualbox with a new virtual hard drive, no problem. When I launch the machine, it start well, I can choose Install, Install no ACPI, Install no ACPI and no SMP or drop to boot prompt. I tried the 3 first choices (normal, no acpi, no acpi/smp) and the problem is still here. I also tried to enable, disable, IO APIC, ACPI in the virtual machine option, doesn't work too. The message I get during the boot is: (hope to make no mistake because I typed the whole message) {{{ attimer0: attached to pcppi0 uvm_fault(0xc0b26cc0, 0, 1) -> 0xe fatal page fault in supervisor mode trap type 6 code 0 eip c0100ca8 cs 8 eflags 246 cr2 0 ilevel 0 uvm_fault(0xc0b26cc0, 0, 1) -> 0xe fatal page fault in supervisor mode trap type 6 code 0 eip c0100ca8 cs 8 eflags 246 cr2 c0a77474 ilevel 0 kernel: supervisor trap page fault, code=0 Stopped in pid 0.1 (system) at netbsd:spllower+0x28: lock addl %eax,0(%eax) db{0}> }}} db{0}> is a prompt for something, I don't know exactly what I can do with this prompt. I'm using Vbox 2.2.2 on a windows XP pro sp2 host, the cpu have no virtualisation feature. I tried with another computer (windows 7 beta, 2x xeon 5420 with virtualisation activated) but I have exactly the same message." defect closed other VirtualBox 3.1.4 fixed netbsd 5.0 BSD other