performance: 0.331 boot: 0.105 semantic: 0.103 other: 0.098 device: 0.079 files: 0.053 PID: 0.052 debug: 0.035 graphic: 0.032 vnc: 0.027 socket: 0.026 network: 0.026 permissions: 0.024 KVM: 0.008 boot: 0.374 debug: 0.218 other: 0.069 PID: 0.061 files: 0.061 performance: 0.039 socket: 0.035 device: 0.030 KVM: 0.023 semantic: 0.021 network: 0.021 vnc: 0.018 graphic: 0.018 permissions: 0.010 Nexenta 3.0.1 fails to install The latest git version of qemu (commit 420b6c317de87890e06225de6e2f8af7bf714df0) fails to boot Nexenta3.0.1. I don't know if this is a bug in nextenta, or in QEMU or both. You can obtain a bootable image of Nextenta from http://www.nexenta.org/releases/nexenta-core-platform_3.0.1-b134_x86.iso.zip Host: Linux/x86_64 gcc4.5 ./configure --enable-linux-aio --enable-io-thread --enable-kvm qemu-img create nexenta3.0.1 3G qemu -hda nexenta3.0.1 -cdrom nexenta-core-platform3.0.1-b134x86.iso -boot d -k en-us -m 256 Boots to grub OK, but when you hit install you get panic[cpu0]/thread=fec226c0: vmem_hash_delete(d4404690, d445abc0, 0): bad free. You get the same error with or without -enable-kvm I have found that I can get to the installer if I give the -no-acpi argument. As others have noted, Netexnta is very slow. To get any sort of speed I used the 32-bit version and disabled QEMU disc caching, thus: qemu -drive file=nexenta3.0.1,index=0,media=disk,cache=unsafe -cdrom nexenta-core-platform_3.0.1-b134_x86.iso -boot d -k en-us -m 512 -enable-kvm -no-acpi Even then, performance is painful. Triaging old bug tickets ... Is this issue still reproducible with the latest version of QEMU? [Expired for QEMU because there has been no activity for 60 days.]