From: Michael Albinus <michael.albinus@gmx.de>
To: glen <cnglen@126.com>
Cc: help-gnu-emacs@gnu.org, tramp-devel@gnu.org
Subject: Re: emacs tramp hangs
Date: Sat, 17 Jun 2017 11:43:14 +0200 [thread overview]
Message-ID: <87efujdk5p.fsf@detlef> (raw)
In-Reply-To: <17eb70c0.d667.15cb1208980.Coremail.cnglen@126.com> (glen's message of "Fri, 16 Jun 2017 21:38:38 +0800 (CST)")
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glen <cnglen@126.com> writes:
Hi Jacky,
> It hangs after tramp-send-command(), tramp-wait-for-output().
> It seems that the emacs-tramp can't detect the output of remote command.
>
> See the attached file for more details.
>
> Any ideas?
Your shell prompt doesn't look Tramp affin, there are escape sequences:
> 18:10:54.192196 tramp-send-command (6) # exec ssh -l jacky -o ControlMaster=auto -o ControlPath='tramp.%C' -o ControlPersist=no -e none 192.168.98.76
> 18:10:59.920689 tramp-process-actions (6) #
> Password:
> Last login: Fri Jun 16 18:08:04 2017 from 192.18.8.8
> [?1034hCopyright(c) 2005-2011, QiZhi Technologies. All Rights Reserved.
> License granted to Hze Co., Ltd, from 2015-03-09 to 2037-12-31.
>
>
> Selected group: linshi
>
> Selected server: 72.2.96.9 (72.2.96.9)
>
> Selected account: root
>
> ]0;root@72.2.96.9 - SHTERM\a
> SHTERM 2.6.3-35fa58f3
> Copyright (c) 2005-2011, QiZhi Technologies. All Rights Reserved.
> License granted to Hze Co., Ltd.
> Valid from 2015-03-09 to 2037-12-31.
> Last login: Fri Jun 16 18:08:08 2017 from 172.22.215.224
> ]0;root@WINDANCER:~\a[?1034h[root@WINDANCER ~]#
The login has worked successfully, despite the escape sequences.
> 18:10:59.923488 tramp-send-command (6) # exec env TERM='xterm' ENV='' HISTFILE=~/.tramp_history PROMPT_COMMAND='' PS1=\#\$\ PS2='' PS3='' /bin/sh
> 18:12:24.347680 tramp-open-shell (5) # Opening remote shell €˜/bin/sh€™...failed
This command has failed. Even no output in the buffer.
I recommend to suppress the escape sequences in your shell prompt, see
the Tramp manual for hints how to do this.
> PS: what's meaning of regex: "[^#$\n]*%s\r?$"?
It's part of the `format' clause to determine the shell prompt; %s is
replaced by the value of `tramp-end-of-output'. In your case, this
variable should be "#$ ". Later on, once the connection has been
established, `tramp-end-of-output' is a random string like
"///e90c02f62ec0d7a2f6da0b67a20f8264#$".
> Jacky Wang
Best regards, Michael.
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prev parent reply other threads:[~2017-06-17 9:43 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-16 13:38 emacs tramp hangs glen
2017-06-17 9:43 ` Michael Albinus [this message]
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