Hello I'm using :
qemu-system-arm --version QEMU emulator version 1.0,1, Copyright (c) 2003-2008 Fabrice Bellard and I have a premade ARM image which I start with: qemu-system-arm -M versatilepb -m 256 -kernel vmlinuz-3.1-versatile-fw5 -hda initrd-arm.img -append "root=/dev/sda ro quiet" Every now and then I get this: lsi_scsi: error: ORDERED queue not implemented I'm not sure why this is, both host and guest run Frugalware Linux which is not very famous , kernel is at version 3.2 The file system for the guest is ext3, mounted from /dev/sda. The IO fails sometime in the guest system and it seems very slow in general. If you need any more information let me know. I can reproduce this every time I make IO intensive operations like git clone on a large repository.