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bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask
From: |
Eli Zaretskii |
Subject: |
bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask |
Date: |
Mon, 21 Sep 2015 16:18:45 +0300 |
[Returning the discussion to the bug tracker.]
> From: Rainer M Krug <Rainer@krugs.de>
> Date: Mon, 21 Sep 2015 14:32:23 +0200
>
> > I cannot reproduce this, unfortunately. I cannot even successfully
> > load your init files, something is missing, even though I downloaded
> > cask and pallet.
> >
> > Any chance of you coming up with a recipe that starts from "emacs -Q"?
> >
> > If not, can you compile Emacs with debug info, run it under the
> > debugger, and tell me values of some variables I need to see?
>
> The crash is occurring very irregular and I am working while triggering
> it - and I haven't found a reliable recipe yet.
>
> The easiest would be to compile with debug info - I'll see how I can do
> it using homebrew or directly.
>
> Could you give me the options I should use in the configure?
I don't know how Emacs is built on OS X, sorry. I can only tell that
the compiler switches should include -g and NOT include -s. You
should be able to see the compiler switches in src/Makefile.
If this is somehow not enough, I can go with "printf debugging", if
it's okay with you. That is, assuming that adding a line such as
fprintf (stderr, "something to print\n");
to some place in the C code, then recompiling Emacs and running it
will display the specified text.
The infinite recursion in this last crash happens here:
/* If we reached the end of the object we've been iterating (e.g., a
display string or an overlay string), and there's something on
IT->stack, proceed with what's on the stack. It doesn't make
sense to return false if there's unprocessed stuff on the stack,
because otherwise that stuff will never be displayed. */
if (!success_p && it->sp > 0)
{
set_iterator_to_next (it, false);
success_p = get_next_display_element (it); <<<<<<<<<<<<<<<<<<<<<<
}
/* Value is false if end of buffer or string reached. */
return success_p;
This is the end of the function get_next_display_element, around line
7190 in xdisp.c. For some reason, the call to set_iterator_to_next
leaves us at the same place of the same object we were before the
call. I need to understand why that happens, and fix this code not to
do that.
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, (continued)
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/08
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/09
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/09
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/11
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/21
- Message not available
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- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask,
Eli Zaretskii <=
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/21
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/23
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/23
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/23
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/24
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/24
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Rainer M Krug, 2015/09/24
- bug#21428: 24.5; Crash of emacs on OS X, installed via homebrew cask, Eli Zaretskii, 2015/09/24