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bug#64554: 27.1; comint-mode cuts input after 4095 characters
From: |
Eli Zaretskii |
Subject: |
bug#64554: 27.1; comint-mode cuts input after 4095 characters |
Date: |
Mon, 10 Jul 2023 16:24:45 +0300 |
> From: Jens Thiele <karme@karme.de>
> Date: Mon, 10 Jul 2023 11:37:38 +0200
>
> I see an annoying bug with comint-mode where lines are cut off after
> 4095 characters.
>
> How to reproduce:
> start comint-mode with cat:
> M-: (switch-to-buffer (make-comint "cat" "cat"))
> insert 10000 u's
> C-u 10000 u RET
> and get only 4095 u's back in return (where of course 10000 should be
> returned)
Set process-connection-type to nil if you want to send more than 4KB
to a process. AFAIR, this is a fundamental limitation of PTYs, which
are used by default for communicating with async subprocesses.
Setting process-connection-type to nil uses pipes instead.
See
https://unix.stackexchange.com/questions/643777/is-there-any-limit-on-line-length-when-pasting-to-a-terminal-in-linux