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id = 1462
title = "qemu-system-m68k segfaults on opcode 0x4848"
state = "closed"
created_at = "2023-01-25T17:34:56.485Z"
closed_at = "2023-02-06T08:45:18.921Z"
labels = ["target: m68k", "workflow::Patch available"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/1462"
host-os = "Ubuntu 22.10"
host-arch = "x86-64"
qemu-version = "QEMU emulator version 7.0.0 (Debian 1:7.0+dfsg-7ubuntu2.1)"
guest-os = "Debian m68k bookworm"
guest-arch = "m68k"
description = """Running an m68k executable with opcode 0x4848 will segfault qemu-system-m68k"""
reproduce = """1. Boot m68k debian
2. Compile program (see above for the oops.c source) that executes opcode 0x4848
3. Run program
4. QEMU segfaults:
```
./debian-m68k.sh: line 10: 4420 Segmentation fault (core dumped) qemu-system-m68k -boot c -M q800 -serial none -serial mon:stdio -m 1000M -net nic,model=dp83932,addr=08:00:07:12:34:89 -net user -append "root=/dev/sda2 rw console=ttyS0 console=tty" -kernel virt/vmlinux-4.16.0-1-m68k -initrd virt/initrd.img-4.16.0-1-m68k -drive file=virt/debian-m68k-deb10.qcow2,format=qcow2 -nographic
```"""
additional = """"""
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