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id = 2790
title = "Can't switch to monitor with rr=record"
state = "opened"
created_at = "2025-01-23T15:45:20.435Z"
closed_at = "n/a"
labels = ["Chardev", "accel: TCG", "icount"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/2790"
host-os = "Debian testing"
host-arch = "x86"
qemu-version = "Built from `cf86770c7aa31ebd6e56f4eeb25c34107f92c51e"
guest-os = "n/a"
guest-arch = "n/a"
description = """With the above args, while the guest is paused (either because I haven't attached GDB yet, or because I've halted execution in GDB), it's not possible to switch to the QEMU monitor.
I don't reproduce this issue with `QEMU emulator version 8.2.4 (Debian 1:8.2.4+ds-1+build1)` but I do with 9.2 and master (built from source).
AFAICT, the monitor is working - if I just set `-monitor stdio` instead of `-serial mon:stdio` I can use it, including when the VM is paused. But the multiplexing doesn't work."""
reproduce = """1. Run the above
2. Ctrl-A, c"""
additional = "n/a"
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