Okay, I need to classify the given bug report into one of the provided categories. The user mentioned that qemu-system-arm segfaults without KVM on ARM and works fine when KVM is enabled. They're running on an Odroid-XU with Debian Jessie armhf. Looking at the possible categories: kernel, hypervisor, device, etc. Since the issue occurs without KVM but not with it, it's likely related to how QEMU emulates things without hardware acceleration (KVM provides kernel-based virtualization). The segfault happens when running without KVM, so maybe a problem in the emulation code or how the CPU is being handled. The backtrace shows issues in cpu_tb_exec and cpu_arm_exec. These functions are part of the CPU execution loop in QEMU. A segmentation fault here suggests an issue with the translation buffer (TB) or instruction handling when not using KVM. So, since it's about the hypervisor mode (or lack thereof), the category should be 'hypervisor'. The problem arises without KVM, implying a bug in the non-KVM (user-mode) emulation which falls under hypervisor-related issues. hypervisor