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From: Eli Zaretskii <eliz@gnu.org>
To: Philipp Stephani <p.stephani2@gmail.com>
Cc: aurelien.aptel+emacs@gmail.com, tzz@lifelogs.com,
	dancol@dancol.org, emacs-devel@gnu.org, eggert@cs.ucla.edu
Subject: Re: Dynamic modules: MODULE_HANDLE_SIGNALS etc.
Date: Tue, 22 Dec 2015 19:51:54 +0200	[thread overview]
Message-ID: <831taeqslh.fsf@gnu.org> (raw)
In-Reply-To: <CAArVCkRvDJTGe6XVfTt0zyrw1bd5G5jzv6cAiipjcB8m=_cQqQ@mail.gmail.com> (message from Philipp Stephani on Tue, 22 Dec 2015 17:26:14 +0000)

> From: Philipp Stephani <p.stephani2@gmail.com>
> Date: Tue, 22 Dec 2015 17:26:14 +0000
> Cc: eggert@cs.ucla.edu, aurelien.aptel+emacs@gmail.com, tzz@lifelogs.com, 
> 	emacs-devel@gnu.org
> 
> IIUC this code (terminate_due_to_signal) already auto-saves without calling
> Lisp (or module) code, so this should be usable. We just need to make sure that
> module code is not run after a stack overflow. Would it be possible to chose
> this path if a module function is running? 

I'm not sure I understand your proposal in enough detail to answer.
Are you suggesting to call terminate_due_to_signal where we detect
stack overflow, without unwinding the stack by longjmp?  If so, that
runs a high risk of crashing, due to several reasons (I can explain
them if you indeed suggested something similar to that).  We must
release enough stack space before we call any non-trivial code.
That's what longjmp to top level does.

If you are suggesting something else, please elaborate.



  reply	other threads:[~2015-12-22 17:51 UTC|newest]

Thread overview: 177+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-25 18:39 Dynamic modules: MODULE_HANDLE_SIGNALS etc Eli Zaretskii
2015-11-25 18:50 ` Philipp Stephani
2015-11-25 19:24   ` Eli Zaretskii
2015-11-26 21:29 ` Paul Eggert
2015-11-27  7:35   ` Eli Zaretskii
2015-11-27 19:19     ` Philipp Stephani
2015-11-28 10:58       ` Philipp Stephani
2015-11-28 12:10         ` Eli Zaretskii
2015-12-19 21:03         ` Philipp Stephani
2015-12-19 22:57           ` Philipp Stephani
2015-12-20 15:47             ` Eli Zaretskii
2015-12-20 18:34               ` Philipp Stephani
2015-12-20 19:11                 ` Eli Zaretskii
2015-12-20 21:40                   ` Paul Eggert
2015-12-21  3:33                     ` Eli Zaretskii
2015-12-21 11:00                       ` Paul Eggert
2015-12-21 11:21                         ` Yuri Khan
2015-12-21 11:34                           ` Paul Eggert
2015-12-21 15:46                         ` Eli Zaretskii
2015-12-21 18:15                           ` Paul Eggert
2015-12-21 18:28                             ` Daniel Colascione
2015-12-21 19:00                               ` Eli Zaretskii
2015-12-21 20:19                                 ` Philipp Stephani
2015-12-21 19:04                               ` Eli Zaretskii
2015-12-22  4:09                               ` Paul Eggert
2015-12-22  4:38                                 ` Daniel Colascione
2015-12-22  4:48                                   ` Paul Eggert
2015-12-22  4:52                                     ` Daniel Colascione
2015-12-22  6:09                                       ` Paul Eggert
2015-12-22  6:14                                         ` Daniel Colascione
2015-12-22  6:33                                           ` Paul Eggert
2015-12-22  6:35                                             ` Daniel Colascione
2015-12-22  6:44                                               ` Paul Eggert
2015-12-22  6:53                                                 ` Daniel Colascione
2015-12-22 16:13                                                   ` Eli Zaretskii
2015-12-22 16:12                                           ` Eli Zaretskii
2015-12-22 17:26                                             ` Philipp Stephani
2015-12-22 17:51                                               ` Eli Zaretskii [this message]
2015-12-22 16:03                                     ` Eli Zaretskii
2015-12-22 16:39                                       ` Paul Eggert
2015-12-22 17:46                                         ` Eli Zaretskii
2015-12-22 23:28                                           ` Paul Eggert
2015-12-23 16:10                                             ` Eli Zaretskii
2015-12-23 16:20                                               ` Philipp Stephani
2015-12-23 16:46                                                 ` Eli Zaretskii
2015-12-23 17:09                                                 ` Paul Eggert
2015-12-23 17:18                                                   ` Daniel Colascione
2015-12-24  2:51                                                     ` Paul Eggert
2015-12-24  3:11                                                       ` Daniel Colascione
2015-12-24 16:10                                                       ` Eli Zaretskii
2015-12-24 17:04                                                         ` Daniel Colascione
2015-12-24 17:17                                                           ` John Wiegley
2016-01-03 14:27                                                             ` Daniel Colascione
2016-01-03 15:46                                                               ` Eli Zaretskii
2016-01-03 15:49                                                                 ` Daniel Colascione
2016-01-03 16:40                                                                   ` Eli Zaretskii
2016-01-03 16:50                                                                     ` Daniel Colascione
2016-01-03 17:20                                                                       ` Eli Zaretskii
2016-01-03 16:31                                                               ` Paul Eggert
2016-01-03 16:48                                                                 ` Daniel Colascione
2016-01-03 18:07                                                                   ` Paul Eggert
2016-01-03 18:22                                                                     ` Daniel Colascione
2016-01-03 21:02                                                                       ` Paul Eggert
2016-01-03 21:12                                                                         ` Daniel Colascione
2016-01-03 23:11                                                                           ` Paul Eggert
2016-01-03 23:22                                                                             ` Daniel Colascione
2016-01-03 23:29                                                                               ` John Wiegley
2016-01-04  1:05                                                                               ` Paul Eggert
2016-01-04  1:07                                                                                 ` Daniel Colascione
2016-01-04 15:38                                                                               ` Eli Zaretskii
2016-01-04 15:40                                                                                 ` Daniel Colascione
2016-01-04 16:07                                                                                   ` Eli Zaretskii
2016-01-04 20:32                                                                                     ` John Wiegley
2016-01-04 20:34                                                                                       ` Daniel Colascione
2016-01-04 20:35                                                                                         ` Daniel Colascione
2016-01-04 22:06                                                                                           ` John Wiegley
2016-01-04 15:24                                                                           ` Eli Zaretskii
2016-01-04 15:28                                                                             ` Daniel Colascione
2016-01-04 16:00                                                                               ` Eli Zaretskii
2016-01-03 17:16                                                                 ` Eli Zaretskii
2016-01-03 17:22                                                                   ` Daniel Colascione
2016-01-03 17:39                                                                     ` Eli Zaretskii
2016-01-03 17:49                                                                       ` Daniel Colascione
2016-01-03 18:08                                                                         ` Eli Zaretskii
2016-01-03 18:24                                                                           ` Daniel Colascione
2016-01-03 18:51                                                                             ` Eli Zaretskii
2016-01-03 19:04                                                                               ` Daniel Colascione
2016-01-03 19:15                                                                                 ` Eli Zaretskii
2016-01-03 19:26                                                                                   ` Daniel Colascione
2016-01-03 19:46                                                                                     ` Eli Zaretskii
2016-01-03 19:47                                                                                       ` Daniel Colascione
2016-01-03 19:49                                                                                   ` John Wiegley
2016-01-03 20:14                                                                                     ` Daniel Colascione
2016-01-04  3:17                                                                           ` Richard Stallman
2016-01-03 18:17                                                                         ` Paul Eggert
2016-01-03 17:43                                                                     ` Eli Zaretskii
2016-01-03 20:25                                                               ` John Wiegley
2016-01-03 20:47                                                                 ` Daniel Colascione
2016-01-03 21:07                                                                   ` John Wiegley
2016-01-03 21:28                                                                     ` Daniel Colascione
2016-01-03 21:31                                                                       ` Daniel Colascione
2016-01-04 15:27                                                                         ` Eli Zaretskii
2016-01-04 15:29                                                                           ` Daniel Colascione
2016-01-04 16:01                                                                             ` Eli Zaretskii
2016-01-03 21:45                                                                       ` John Wiegley
2016-01-03 22:20                                                                         ` Daniel Colascione
2016-01-03 22:43                                                                           ` Crash recovery strategies (was: Dynamic modules: MODULE_HANDLE_SIGNALS etc.) John Wiegley
2016-01-03 22:55                                                                             ` Crash recovery strategies Daniel Colascione
2016-01-03 22:59                                                                               ` John Wiegley
2016-01-03 23:04                                                                                 ` Daniel Colascione
2016-01-03 23:20                                                                                   ` John Wiegley
2016-01-03 23:47                                                                               ` John Wiegley
2016-01-03 23:51                                                                                 ` Daniel Colascione
2016-01-04  0:12                                                                                   ` John Wiegley
2016-01-04 15:40                                                                                   ` Eli Zaretskii
2016-01-04 15:44                                                                                     ` Daniel Colascione
2016-01-04 15:33                                                                               ` Eli Zaretskii
2016-01-04 15:34                                                                                 ` Daniel Colascione
2016-01-04 16:02                                                                                   ` Eli Zaretskii
2016-01-03 23:21                                                                             ` Paul Eggert
2016-01-03 23:24                                                                               ` Daniel Colascione
2016-01-03 23:28                                                                                 ` John Wiegley
2016-01-04  0:51                                                                                 ` Paul Eggert
2016-01-03 23:27                                                                               ` John Wiegley
2016-01-03 23:29                                                                                 ` Daniel Colascione
2016-01-03 23:33                                                                                   ` Sending automatic crash reports to the FSF (was: Crash recovery strategies) John Wiegley
2016-01-03 23:36                                                                                     ` Sending automatic crash reports to the FSF Daniel Colascione
2016-01-03 23:39                                                                                       ` John Wiegley
2016-01-03 23:48                                                                                         ` Daniel Colascione
2016-01-04  1:34                                                                                   ` Crash recovery strategies Drew Adams
2016-01-04 15:32                                                                             ` Crash recovery strategies (was: Dynamic modules: MODULE_HANDLE_SIGNALS etc.) Eli Zaretskii
2016-01-04 15:35                                                                               ` Crash recovery strategies Daniel Colascione
2016-01-04 16:04                                                                                 ` Eli Zaretskii
2016-01-05  4:48                                                                                 ` Richard Stallman
2016-01-05 15:52                                                                                   ` Eli Zaretskii
2016-01-05 16:37                                                                                     ` Clément Pit--Claudel
2016-01-05 17:08                                                                                       ` Eli Zaretskii
2016-01-05 17:38                                                                                         ` Clément Pit--Claudel
2016-01-04 15:31                                                                           ` Dynamic modules: MODULE_HANDLE_SIGNALS etc Eli Zaretskii
2016-01-04 15:41                                                                             ` Daniel Colascione
2016-01-04 16:13                                                                               ` Eli Zaretskii
2016-01-04 15:29                                                                         ` Eli Zaretskii
2016-01-04 15:26                                                                       ` Eli Zaretskii
2015-12-24 17:36                                                           ` Eli Zaretskii
2015-12-24 18:06                                                             ` Daniel Colascione
2015-12-24 19:15                                                               ` Eli Zaretskii
2015-12-22 16:01                                   ` Eli Zaretskii
2015-12-22 16:32                                     ` John Wiegley
2015-12-22 20:31                                     ` Daniel Colascione
2015-12-22 20:46                                       ` Eli Zaretskii
2015-12-22 20:52                                         ` Daniel Colascione
2015-12-22 21:08                                           ` Eli Zaretskii
2015-12-22 21:18                                             ` Daniel Colascione
2015-12-23 16:07                                               ` Eli Zaretskii
2015-12-23 16:25                                                 ` Crash robustness (Was: Re: Dynamic modules: MODULE_HANDLE_SIGNALS etc.) Daniel Colascione
2015-12-23 17:30                                                   ` Eli Zaretskii
2015-12-23 17:41                                                     ` Daniel Colascione
2015-12-23 17:55                                                       ` Eli Zaretskii
2015-12-23 17:56                                                         ` Daniel Colascione
2015-12-23 18:09                                                           ` Eli Zaretskii
2015-12-23 18:19                                                             ` Daniel Colascione
2015-12-23 18:45                                                               ` Eli Zaretskii
2015-12-24  3:26                                                                 ` Daniel Colascione
2015-12-21 18:57                             ` Dynamic modules: MODULE_HANDLE_SIGNALS etc Eli Zaretskii
2015-12-21 20:15                             ` Philipp Stephani
2015-12-20 15:48           ` Eli Zaretskii
2015-12-20 18:27             ` Philipp Stephani
2015-12-20 19:00               ` Eli Zaretskii
2015-12-20 21:00                 ` Philipp Stephani
2017-03-26 20:18                   ` Philipp Stephani
2016-02-29 22:48           ` Philipp Stephani
2016-03-01 16:41             ` Paul Eggert
2016-03-01 21:43               ` Philipp Stephani
2016-03-02 18:54                 ` Paul Eggert
2016-03-31 18:44                   ` Philipp Stephani
2016-04-01  8:29                     ` Paul Eggert
2015-11-28 23:20     ` Paul Eggert

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