From: Daimrod <daimrod@gmail.com>
To: Bastien <bzg@gnu.org>
Cc: Eric Abrahamsen <eric@ericabrahamsen.net>, emacs-orgmode@gnu.org
Subject: Re: still seeing semi-regular lockups
Date: Thu, 15 May 2014 18:30:50 +0900 [thread overview]
Message-ID: <87ha4r1j91.fsf@tanger.home> (raw)
In-Reply-To: <87siobtn1i.fsf@bzg.ath.cx> (Bastien's message of "Thu, 15 May 2014 11:21:29 +0200")
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Bastien <bzg@gnu.org> writes:
> Hi Eric,
>
> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>
>> After Nicolas made the last round of improvements to the caching
>> mechanism I got far fewer hangs with Org, but they are still happening.
>> Maybe once a day or so, on average, editing something in an Org buffer
>> causes emacs to hang, and my fans to spin up, and there we are until I
>> kill emacs.
>
> I've seen hiccups here and there, but generally, what happens is an
> error, not an infinite hanging.
>
>> It happens often enough that I guess it's worth running emacs under some
>> kind of debugger -- at least, I assume that's the best way of catching
>> the bug. I'm not really sure how to go hunting, though, so if anyone had
>> any advice in this direction, that would be great.
>
> I'd hunt for some infloop in parsing -- but cannot detail more than
> that, problably Nicolas could.
>
>> In the meantime, is there any way of interrupting emacs so it quits
>> whatever its doing, without having to kill it? I've played around with
>> sending different signals using "kill", just for fun, but everything
>> I've tried either does nothing, or kills emacs altogether.
>
> I have no suggestion here either, sorry :/
I have also semi-regular lockup with org-mode. I have opened a bug on
debbugs and here is what Stefan told me to try to debug this:
> You can try `debug-on-event'.
>
> There's jit-lock-debug-mode but it doesn't disable inhibit-quit.
> So you'll need to additionally use
>
> (advice-add 'jit-lock--debug-fontify :around
> (lambda (fun &rest args)
> (with-local-quit (apply fun args))))
>
> Of course sometimes this doesn't work because jit-lock-debug-mode
> changes the way things are executed and the bug may not manifest itself
> any more, but it's worth a try.
>
> Another source of info is to
>
> M-x trace-function RET org-adaptive-fill-function RET
> M-x trace-function RET org-element-at-point RET
> M-x trace-function RET org-element--cache-sync RET
> M-x trace-function RET org-element--cache-process-request RET
>
> Then reproduce the hang, then break the hang somehow (maybe with the
> jit-lock-debug hack above, or maybe with debug-on-event, or with C-g C-g
> C-g, ...), then look at the *trace..* buffer.
I'll try to see what I can find this week end and report back.
By the way, if you want to see in which part the infloop occurs, you can
attach a gdb debugger to the running emacs, source the
<path-to-emacs-source>/src/.gdbinit file and use the `xbacktrace' command.
$ gdb <path-to-emacs-executable> <emacs-pid>
gdb) source <path-to-emacs-source>/src/.gdbinit
...
gdb) xbacktrace
You can also use the `bt' command but it contains much more noise.
--
Daimrod/Greg
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next prev parent reply other threads:[~2014-05-15 9:31 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-14 8:39 still seeing semi-regular lockups Eric Abrahamsen
2014-05-15 9:21 ` Bastien
2014-05-15 9:30 ` Daimrod [this message]
2014-05-15 9:46 ` Bastien
2014-05-15 10:31 ` Eric Abrahamsen
2014-05-15 10:37 ` Daimrod
2014-05-15 10:43 ` Eric Abrahamsen
2014-05-19 14:21 ` Daimrod
2014-05-20 8:25 ` Eric Abrahamsen
2014-05-20 8:55 ` Daimrod
2014-05-20 11:16 ` Eric Abrahamsen
2014-06-24 8:48 ` Nicolas Goaziou
2014-06-24 14:28 ` Eric Abrahamsen
2014-06-25 4:09 ` Matt Lundin
2014-06-25 5:39 ` Matt Lundin
2014-06-25 7:32 ` Sebastien Vauban
2014-06-27 13:00 ` Nicolas Goaziou
2014-06-25 7:38 ` Daimrod
2014-06-25 8:22 ` Eric Abrahamsen
2014-06-25 8:30 ` Bastien
2014-06-25 8:40 ` Eric Abrahamsen
2014-06-25 13:47 ` Matt Lundin
2014-06-26 2:58 ` Matt Lundin
2014-06-26 3:00 ` Matt Lundin
2014-06-27 12:56 ` Nicolas Goaziou
2014-06-27 13:37 ` Alan Schmitt
2014-06-27 22:31 ` Nicolas Goaziou
2014-06-28 19:27 ` Eric Abrahamsen
2014-06-29 1:39 ` York Zhao
2014-06-29 2:23 ` Eric Abrahamsen
2014-06-30 1:15 ` York Zhao
2014-06-30 1:43 ` York Zhao
2014-06-30 20:20 ` Alan Schmitt
2014-07-01 0:43 ` York Zhao
2014-07-01 7:38 ` Nicolas Goaziou
2014-07-01 17:14 ` York Zhao
2014-07-01 21:15 ` York Zhao
2014-07-02 8:01 ` Nicolas Goaziou
2014-07-03 1:03 ` York Zhao
2014-07-06 7:28 ` Nicolas Goaziou
2014-07-06 14:40 ` York Zhao
2014-07-06 21:05 ` York Zhao
2014-07-06 21:31 ` Nicolas Goaziou
2014-07-07 0:16 ` York Zhao
2014-07-07 5:27 ` Nicolas Goaziou
2014-07-25 14:33 ` Sebastien Vauban
2014-07-07 1:43 ` York Zhao
2014-07-07 5:33 ` Nicolas Goaziou
2014-07-07 15:10 ` York Zhao
2014-07-03 15:31 ` York Zhao
2014-07-03 15:55 ` York Zhao
2014-07-06 7:19 ` Nicolas Goaziou
2014-07-06 14:29 ` York Zhao
2014-07-15 2:30 ` York Zhao
2014-07-19 3:17 ` Matt Lundin
2014-07-19 14:12 ` York Zhao
2014-06-29 13:58 ` Nicolas Goaziou
2014-05-29 3:01 ` Daimrod
2014-05-30 9:17 ` Nicolas Goaziou
2014-05-30 14:35 ` Daimrod
2014-06-11 11:53 ` Daimrod
2014-06-11 21:30 ` Nicolas Goaziou
2014-06-11 22:18 ` Daimrod
2014-06-14 7:43 ` Nicolas Goaziou
2014-06-14 23:55 ` Daimrod
2014-06-22 7:58 ` Nicolas Goaziou
2014-06-04 4:47 ` Eric Abrahamsen
2014-06-05 4:29 ` Daimrod
-- strict thread matches above, loose matches on Subject: below --
2014-05-14 11:06 dieter
2014-05-15 2:29 ` Eric Abrahamsen
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