Can't exit espflash if firmware is stuck

[bugadani]

The exact cause is unknown at this point, but here is the setup:

• using windows 11 and windows terminal
• using an ESP32-S3 with the internal USB/JTAG interface
• using espflash 2.0.0 with the Fix Windows installation #399 patch
• trying to run the code from https://github.com/card-io-rs/card-io-fw/tree/68d58393aa12d0ed56ff9de52428f8fab9de7c12

The serial output includes the bootloader messages and the "Hello, world!" printed from the main task, but does not include the state printing a few lines below. In this state (i.e. probably while stuck in Board::initialize, which is trying to configure a display over SPI, but disregarding the bug in my code), espflash doesn't react to Ctrl+C or Ctrl+R and does not exit.

Manually resetting the MCU exits espflash and then the terminal prints the control characters:

[bugadani]

And just after posting this, the problem goes away by itself, of course...

[cacharle]

I have the same issue on Alacritty and the default terminal of RaspberryPiOS. Only way to stop espflash is to kill it in another terminal.

It doesn't even stop on SIGQUIT Ctrl+\.

Anyone knows a fix?