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From: John Wiegley <jwiegley@gmail.com>
To: Daniel Colascione <dancol@dancol.org>
Cc: Eli Zaretskii <eliz@gnu.org>, Paul Eggert <eggert@cs.ucla.edu>,
	Emacs-devel@gnu.org
Subject: Re: Crash recovery strategies
Date: Sun, 03 Jan 2016 14:59:01 -0800	[thread overview]
Message-ID: <m2egdymfre.fsf@newartisans.com> (raw)
In-Reply-To: <5689A6DE.2080709@dancol.org> (Daniel Colascione's message of "Sun, 3 Jan 2016 14:55:26 -0800")

>>>>> Daniel Colascione <dancol@dancol.org> writes:

> But that the emacs -Q process won't be doing any sending. The next regular
> Emacs process will do that. The process we spawn from the sigsegv handler is
> just for asking the user what to do about the crash. If we can't launch the
> process, we can do the default thing, the right choice for which is probably
> to write the crash file.

Hmm... something about this approach just doesn't feel right, but I'm not sure
what it is that I don't like. I'll have to sleep on it.

>> I'm OK if sometimes it just doesn't work. The new async Emacs idea sounds like
>> it has a host of unforeseen complications waiting behind it.

> The problem is that we can't *tell* whether it doesn't work. If we try to do
> that, we can just silently not execute.

This isn't going to be a 100% solution to any problem, so I'm OK if this is a
scatter-gun approach.

>>> On next startup, for each crash file we find that isn't owned by a running
>>> Emacs, we'll
>> 
>>> 1) read and parse the crash file,
>>> 2) prompt the user to send a bug report, and
>>> 3) restore the contents of persisted buffers.
>> 
>>> To avoid crash loops arising from certain arrangements of buffer contents,
>>> we can restore each buffer in fundamental-mode, and with a name indicating
>>> that it's recovered data.

> If implementing a scheme like this is what it takes to kill the stack
> overflow code, I think I can implement it.

Wouldn't the stack overflow code still exist, to catch the error? Maybe I
haven't understood something... Can you explain how this approach removes that
code?

-- 
John Wiegley                  GPG fingerprint = 4710 CF98 AF9B 327B B80F
http://newartisans.com                          60E1 46C4 BD1A 7AC1 4BA2



  reply	other threads:[~2016-01-03 22:59 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
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 [this message]
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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