id = 505
title = "QEMU crashes when reaching a hardware watchpoint"
state = "closed"
created_at = "2021-07-27T15:14:17.907Z"
closed_at = "2021-12-09T18:25:20.156Z"
labels = ["Closed::Fixed", "Regression", "accel: TCG", "target: i386"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/505"
host-os = "Ubuntu 18.04"
host-arch = "x86"
qemu-version = "6.0.90"
guest-os = "Debian live cd - see command line for details"
guest-arch = "i386"
description = """When using hardware watchpoints, qemu crashes when it hits the watch point.
See https://github.com/zephyrproject-rtos/zephyr/issues/28613 for the same problem"""
reproduce = """1. Download https://download.qemu.org/qemu-6.1.0-rc0.tar.xz
2. Download debian-live-10.10.0-i386-standard.iso from https://cdimage.debian.org/debian-cd/current-live/i386/iso-hybrid/
3. Build qemu with /configure --target-list=i386-softmmu
4. Run build/qemu-system-i386 -boot d -cdrom debian-live-10.10.0-i386-standard.iso -m 512 -icount auto -gdb tcp:localhost:1234 -S -display none
5. Run gdb and inside gdb run "target remote localhost:1234"
6. In gdb, run "watch *0x0000fff0" and "cont"
7. qemu will crash with ```qemu: fatal: Raised interrupt while not in I/O function```"""
additional = "n/a"