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bug#21504: (require 'tramp) stuck on testing `tramp-ssh-controlmaster-op
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From: |
Michael Albinus |
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Subject: |
bug#21504: (require 'tramp) stuck on testing `tramp-ssh-controlmaster-options' |
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Date: |
Thu, 17 Sep 2015 20:56:54 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) |
傅文辉 <ffffwh@icloud.com> writes:
> Emacs 24.5.1, tramp 2.2.11-24.5
>
> The following code stuck with some DNS settings
>
>>>> file: tramp-loaddefs.el
> (defvar tramp-ssh-controlmaster-options
> ...
> (call-process "ssh" nil t nil "-o" "ControlPath=%C" "host.does.not.exist")
> ...)
> <<<
>
> `ssh -o ControlPath=%C host.does.not.exist` stuck instead of going
> error quickly with DNS from my ISP (both home and workplace).
It is a similar bug report like bug#20015. Solved in Emacs 25 (the git
version), using 0.0.0.1 as not existing host. This avoids problems with
improper DNS settings.
Best regards, Michael.