This was fixed some time ago in commit 3b4b86aace17ef07fc4f85a9662c991efbc83e15
-- SMC91C111 failed when booting Linux/ARM(Mainstone) since 0.10.0 https://bugs.launchpad.net/bugs/586424 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. Status in QEMU: In Progress Bug description: Since QEMU 0.10.0, the SMC91C111 emulation on a ARM machine like Mainstone, fails when performing some read/write.