target-mips/helper.c:542: bad sizeof ? Recent versions of gcc say this: qemu/target-mips/helper.c:542:9: warning: ‘memset’ used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size] Source code is memset(env->CP0_WatchLo, 0, sizeof(*env->CP0_WatchLo)); Maybe better code memset(env->CP0_WatchLo, 0, 8 * sizeof(target_ulong)); Fix has been included here: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=9d989c732b153fe15