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QEMU x86_64 -nographic full system breaks host Bash terminal line wrapping state after simulation ends, requires reset or "tput smam" to fix it
QEMU 4.2.0 compiled from source, Ubuntu 19.10, open a fresh new gnome terminal.
If you print 1000 = chars on the host terminal, then they do wrap around the end of the terminal:
printf "=%.0s" {0..1000}
However, if you first run QEMU:
x86_64-softmmu/qemu-system-x86_64 -nographic
and then quit it in any way, e.g. with Ctrl + A, and then re-run on the host terminal:
printf "=%.0s" {0..1000}
then the signs don't wrap around anymore, they just go "off the terminal to the right".
This can be fixed with either:
reset
tpam smam
but unfortunately those don't work in tmux for some reason: https://github.com/tmux/tmux/issues/969
I consider this buggy behavior, QEMU should restore the original terminal state if possible.
Related: https://github.com/cirosantilli/linux-kernel-module-cheat/issues/110
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