graphic: 0.901
device: 0.749
performance: 0.703
semantic: 0.594
peripherals: 0.568
architecture: 0.550
debug: 0.455
virtual: 0.393
register: 0.389
hypervisor: 0.329
mistranslation: 0.323
vnc: 0.316
risc-v: 0.308
PID: 0.305
permissions: 0.298
arm: 0.289
ppc: 0.281
boot: 0.279
kernel: 0.250
user-level: 0.250
VMM: 0.229
socket: 0.221
TCG: 0.211
network: 0.191
i386: 0.173
x86: 0.158
KVM: 0.120
files: 0.056
assembly: 0.053

Can't switch to monitor with rr=record
Description of problem:
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.
Steps to reproduce:
1. Run the above
2. Ctrl-A, c