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id = 1568
title = "qemu-system-m68k fails whenever the option \"-d cpu_reset\" is specified"
state = "opened"
created_at = "2023-03-30T13:49:11.717Z"
closed_at = "n/a"
labels = ["target: m68k"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/1568"
host-os = "Ubuntu 18.04.6 LTS"
host-arch = "x86_64"
qemu-version = "QEMU emulator version 7.2.92 (v8.0.0-rc2)"
guest-os = "None"
guest-arch = "m68k"
description = """When specifying the option "-d cpu_reset", the following output is generated, and QEMU eventually crashes with a Segmentation fault:
```
CPU Reset (CPU 0)
D0 = 00000000 A0 = 00000000 F0 = 0000 0000000000000000 ( 0)
D1 = 00000000 A1 = 00000000 F1 = 0000 0000000000000000 ( 0)
D2 = 00000000 A2 = 00000000 F2 = 0000 0000000000000000 ( 0)
D3 = 00000000 A3 = 00000000 F3 = 0000 0000000000000000 ( 0)
D4 = 00000000 A4 = 00000000 F4 = 0000 0000000000000000 ( 0)
D5 = 00000000 A5 = 00000000 F5 = 0000 0000000000000000 ( 0)
D6 = 00000000 A6 = 00000000 F6 = 0000 0000000000000000 ( 0)
D7 = 00000000 A7 = 00000000 F7 = 0000 0000000000000000 ( 0)
PC = 00000000 qemu: fatal: Bad CC_OP 0
D0 = 00000000 A0 = 00000000 F0 = 0000 0000000000000000 ( 0)
D1 = 00000000 A1 = 00000000 F1 = 0000 0000000000000000 ( 0)
D2 = 00000000 A2 = 00000000 F2 = 0000 0000000000000000 ( 0)
D3 = 00000000 A3 = 00000000 F3 = 0000 0000000000000000 ( 0)
D4 = 00000000 A4 = 00000000 F4 = 0000 0000000000000000 ( 0)
D5 = 00000000 A5 = 00000000 F5 = 0000 0000000000000000 ( 0)
D6 = 00000000 A6 = 00000000 F6 = 0000 0000000000000000 ( 0)
D7 = 00000000 A7 = 00000000 F7 = 0000 0000000000000000 ( 0)
...
D0 = 00000000 A0 = 00000000 F0 = 0000 0000000000000000 ( 0)
D1 = 00000000 A1 = 00000000 F1 = 0000 0000000000000000 ( 0)
D2 = 00000000 A2 = 00000000 F2 = 0000 0000000000000000 ( 0)
D3 = 00000000 A3 = 00000000 F3 = 0000 0000000000000000 ( 0)
D4 = 00000000 A4 = 00000000 F4 = 0000 0000000000000000 ( 0)
D5 = 00000000 A5 = 00000000 F5 = 0000 0000000000000000 ( 0)
D6 = 00000000 A6 = 00000000 F6 = 0000 0000000000000000 ( 0)
D7 = 00000000 A7 = 00000000 F7 = 0000 0000000000000000 ( 0)
PC = 00000000 qemu: fatal: Bad CC_OP 0
Segmentation fault (core dumped)
```
This also happens with the other m68k machine types."""
reproduce = """1. Run QEMU with the given command line."""
additional = """"""
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