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id = 1625
title = "[7.2.0] Qemu process hang with `defunct` when using `-blockdev` json property which file doesn't exists"
state = "opened"
created_at = "2023-04-26T09:46:07.714Z"
closed_at = "n/a"
labels = []
url = "https://gitlab.com/qemu-project/qemu/-/issues/1625"
host-os = "Ubuntu 22.04 LTS"
host-arch = "x86"
qemu-version = "QEMU emulator version 7.2.0"
guest-os = "CentOS 7.9.2009"
guest-arch = "x86"
description = """When using `throttle` and `throttle-group` to apply block device QOS,
there is something wrong with check file exists validation.
In upper commands, if the file which located `/mnt/b3b8dfb5-0a7c-4285-81d8-2bf8d33a3297/32c55f5a-96d1-4af4-a149-c95fd6652e3e/b016af76-f6b1-4614-b29a-78917924e55e` doesn't exist, it just hang with `defunct` process.
"""
reproduce = """1. Start Guest with upper command.
2. Hanged with defunct process
3."""
additional = """
- With GDB stack, i can find `no such file` error, but process don't exit"""
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