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bug#9087: Crash reading from minibuffer with icomplete-mode
From: |
Eli Zaretskii |
Subject: |
bug#9087: Crash reading from minibuffer with icomplete-mode |
Date: |
Sat, 07 Jan 2012 12:58:34 +0200 |
> Date: Sat, 07 Jan 2012 11:10:48 +0100
> From: martin rudalics <rudalics@gmx.at>
> CC: claudio.bley@gmail.com, lekktu@gmail.com, 9087@debbugs.gnu.org
>
> > I can avoid the crash with the patch below. But it defers the
> > throwing until Emacs is done whatever it was doing (in this case,
> > evaluating byte code). Is this acceptable? If not, what can we do to
> > make the throwing more "immediate"?
>
> Could you shortly explain the possible consequences of applying this
> patch
1. The crash is avoided. ;-)
2. The Emacs reaction to input event under throw-on-input is delayed
until Emacs actually tries to read input.
(It is possible that 2. is actually what needs to happen in this case;
I don't know because the exact effects of throw-on-input are not
documented anywhere I could find.)
> and why the crash doesn't happen in non-compiled code
To trigger the crash, immediate_quit should be non-zero, because only
then would signal_user_input do a QUIT. immediate_quit is set
non-zero by `nth' only when we run byte code that calls it (see
bytecode.c around line 1007); the function Fnth, called by
non-compiled Lisp code, does not do that.
The choice of `nth' is just one possibility to trigger this; you can
do it in any code that calls some primitive which sets immediate_quit
non-zero.
- bug#9087: Crash reading from minibuffer with icomplete-mode, (continued)
- bug#9087: Crash reading from minibuffer with icomplete-mode, Andreas Schwab, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, martin rudalics, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, Eli Zaretskii, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, Stefan Monnier, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, Eli Zaretskii, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, Stefan Monnier, 2012/01/08
- bug#9087: Crash reading from minibuffer with icomplete-mode, Eli Zaretskii, 2012/01/14
- bug#9087: Crash reading from minibuffer with icomplete-mode, martin rudalics, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode,
Eli Zaretskii <=
- bug#9087: Crash reading from minibuffer with icomplete-mode, martin rudalics, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, Eli Zaretskii, 2012/01/07
- bug#9087: Crash reading from minibuffer with icomplete-mode, martin rudalics, 2012/01/07