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Date:      Tue, 10 Mar 2020 13:49:42 -0700
From:      John Baldwin <jhb@FreeBSD.org>
To:        John F Carr <jfc@mit.edu>, "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>
Cc:        Baptiste Daroussin <bapt@FreeBSD.org>
Subject:   Re: Emacs tramp mode doesn't work with CURRENT
Message-ID:  <ee0fe478-bbd2-8686-2801-f112a8d015d2@FreeBSD.org>
In-Reply-To: <B386FB6D-0771-4337-90C7-8A7E41C2D7F8@exchange.mit.edu>
References:  <B386FB6D-0771-4337-90C7-8A7E41C2D7F8@exchange.mit.edu>

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On 1/28/20 8:57 AM, John F Carr wrote:
> I use emacs tramp mode, which opens an ssh connection to a remote machine for file access.  It works to Linux and FreeBSD 12.1, but not to CURRENT.  There has been a change in the way characters are echoed by the shell, with 12.1 treating a consecutive run of backspace as an atomic unit and CURRENT processing them one at a time.  This is not necessarily a bug, but it is a nuisance and independently it is suboptimal.

I have the same breakage with an amd64 laptop running HEAD (and using
tramp-mode from emacs on a 12.x host)

Have you been able to bisect it at all?  I think libedit is probably a
good candidate as well.

What I see is that tramp-mode just hangs until I kill the ssh session it
is using, and then I see the same output you had below in the debug
window showing the extraneous newlines.

-- 
John Baldwin



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