Pressing Ctrl-A C doesn't opens monitor

[dhruvdabhi101]

Here's my repo for my current code.
Even when i press Ctrl-A c, it doesn't open QEMU monitor, instead process just keeps on running. I am currently on the page table chapter.
If you know what might be wrong, please guide.

[amedina1570]

I had somewhat the same issue, you have to be careful not to keep pressing down Ctrl. Just hit Ctrl + A and then press C. I tried -serial null to see if the kernel was booting up and then changed it to -serial mon:stdio and it worked fine.

[nuta]

👋 @dhruvdabhi101 As @amedina1570 mentioned, -serial mon:stdio (especially mon:) should enable the QEMU monitor. If you're still experiencing the issue, can you share your development environment details, such as OS?

[dhruvdabhi101]

screenrun-03-08-2025-21-19-55.mp4

here's the video of me pressing Ctrl-A then C, but it keeps going, if you find any solution please let me know.
here's my current code if you want to look at it
https://github.com/dhruvdabhi101/riscv-kernel
as you might see a space in between for a split second (it is when i press the keys)

[nuta]

@dhruvdabhi101 What terminal emulator do you use? What happens with Terminal.app or iTerm2?

[dhruvdabhi101]

I am using ghostty, but happening same with Terminal.app and Iterm2

[wcho21]

@dhruvdabhi101 Maybe it's a bit late to reply, but leaving this comment here for future reference.

Press Ctrl+A, C and type stop to stop execution.
Pressing Ctrl+A, C does opens QEMU monitor, but it only looks like nothing happened because the terminal gets flooded with standard output immediately.

The book actually mentions typing stop, but I think it's easy to miss when just skimming.
Hope this helps.