GNU bug report logs - #27731
25.2; Emacs always crash when C-x C-s over tramp

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: yu.zhao <at> joudou.com (Yu Zhao 赵宇)
To: bug-gnu-emacs <at> gnu.org
Subject: 25.2; Emacs always crash when C-x C-s over tramp
Date: Mon, 17 Jul 2017 12:26:31 +0800

Everytime when I press C-x C-s to save-file over tramp(I am certain
about this), my Emacs crashes.

Or may be it crashes sometimes I save-file locally(not sure about this)?

I tramp to a remote centos server over ssh, it always works very well before that.

I tried to tramp using Emacs -Q and it works(not crash) one time.

I've just upgraded my mac to 10.12 and my Emacs to 25.2 from 25.1,
so I am not sure whether the mac version or the emacs version is the
actual cause of the crash.



In GNU Emacs 25.2.1 (x86_64-apple-darwin16.6.0, NS appkit-1504.83 Version 10.12.5 (Build 16F73))
 of 2017-07-15 built on localhost
Windowing system distributor 'Apple', version 10.3.1504
Configured using:
 'configure --disable-dependency-tracking --disable-silent-rules
 --enable-locallisppath=/usr/local/share/emacs/site-lisp
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Recent messages:
Loading /Users/yuzhao/.emacs.d/.mc-lists.el (source)...done
.emacs.d/elpa/eval-sexp-fu/eval-sexp-fu.el: ‘labels’ is an obsolete macro (as of 24.3); use ‘cl-labels’ instead.
.emacs.d/elpa/eval-sexp-fu/eval-sexp-fu.el: ‘flet’ is an obsolete macro (as of 24.3); use either ‘cl-flet’ or ‘cl-letf’. [2 times]
ad-handle-definition: ‘er/expand-region’ got redefined
.emacs.d/elpa/smart-forward-20140430.13/smart-forward.el: ‘flet’ is an obsolete macro (as of 24.3); use either ‘cl-flet’ or ‘cl-letf’. [4 times]
Loading /Users/yuzhao/.emacs.d/site-lisp/chinese-wubi-single-rules.el (source)...done
.emacs.d/site-lisp/reddit.el: ‘labels’ is an obsolete macro (as of 24.3); use ‘cl-labels’ instead.
Loading font-lock...done
For information about GNU Emacs and the GNU system, type C-h C-a.
.emacs.d/elpa/helm-20160929.1313/helm-elisp.el: ‘dont-compile’ is an obsolete macro (as of 24.4).

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Message #8 received at 27731 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: yu.zhao <at> joudou.com (Yu Zhao 赵宇)
Cc: 27731 <at> debbugs.gnu.org
Subject: Re: bug#27731: 25.2; Emacs always crash when C-x C-s over tramp
Date: Mon, 17 Jul 2017 17:14:30 +0300

> From: yu.zhao <at> joudou.com (Yu Zhao 赵宇)
> Date: Mon, 17 Jul 2017 12:26:31 +0800
> 
> Everytime when I press C-x C-s to save-file over tramp(I am certain
> about this), my Emacs crashes.

Please start Emacs under a debugger (preferably GDB), and when it
crashes, produce a C-level backtrace and post it here.

Thanks.

Message #11 received at 27731 <at> debbugs.gnu.org (full text, mbox):

From: Yu Zhao <yu.zhao <at> joudou.com>
To: 27731 <at> debbugs.gnu.org
Subject: forward to bug #27731
Date: Mon, 17 Jul 2017 14:09:11 +0800

[Message part 1 (text/plain, inline)]

I changed to https://emacsformacosx.com/emacs-builds/Emacs-25.2-universal.dmg <https://emacsformacosx.com/emacs-builds/Emacs-25.2-universal.dmg> and it will not crash when I tramp and save-file.

I doubt that is because one of the "--with-???" options I used in the brew install emacs, which is different from the prebuilt version of emacsformacosx.com.

[Message part 2 (text/html, inline)]

Message #14 received at 27731 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Yu Zhao <yu.zhao <at> joudou.com>
Cc: 27731 <at> debbugs.gnu.org
Subject: Re: bug#27731: 25.2; Emacs always crash when C-x C-s over tramp
Date: Tue, 18 Jul 2017 17:30:37 +0300

[Please use Reply-all, so that a copy of the message goes to the bug
tracker.]

> From: Yu Zhao <yu.zhao <at> joudou.com>
> Date: Tue, 18 Jul 2017 12:04:08 +0800
> 
> Do I need to follow the instructions in the DEBUG file, and recompile emacs with CFLAGS="-O0 -g3" and
> download a copy of the source code of GNU Emacs and start gdb in the path of .gdbinit?

For starters, it's enough to run the Emacs binary that you have under
GDB without rebuilding.

Thanks.

Message #17 received at 27731 <at> debbugs.gnu.org (full text, mbox):

From: Michael Albinus <michael.albinus <at> gmx.de>
To: Yu Zhao <yu.zhao <at> joudou.com>
Cc: 27731 <at> debbugs.gnu.org
Subject: Re: bug#27731: forward to bug #27731
Date: Mon, 11 Dec 2017 13:19:48 +0100

Yu Zhao <yu.zhao <at> joudou.com> writes:

> I changed to
> https://emacsformacosx.com/emacs-builds/Emacs-25.2-universal.dmg and
> it will not crash when I tramp and save-file.

I'm closing this bug, since there are no more evidences for months. Feel
free to reopen if there's something new.

Best regards, Michael.

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