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From: "Juanma Barranquero" <lekktu@gmail.com>
To: "Emacs Bug Tracker" <submit@emacsbugs.donarmstrong.com>
Subject: bug#872: Crash displaying byte-code
Date: Wed, 3 Sep 2008 18:06:12 +0200	[thread overview]
Message-ID: <f7ccd24b0809030906y723345abj2a9db4a914f7345b@mail.gmail.com> (raw)

emacs -Q
M-x ielm <RET>

then typing

(let ((standard-output (current-buffer)))
  (setq unibyte-display-via-language-environment t)
  (set-buffer-multibyte nil)
  (backtrace))

makes Emacs crash on Windows.

Notes:
 - If Emacs is run from inside GDB, it "hangs" for a while and finally
crashes.
 - If run from the command-line, after doing the above it crashes
immediately; the DrMingw backtrace is a bit different.
 - It only happens with an optimized build.
 - All the above steps are required, including executing the `let'
from inside IELM. In fact, the crash happens while IELM is trying to
display byte-code("...")

It apparently started happening after this change:

2008-04-09  Jason Rumney  <address@hidden>

        * w32term.c (w32_compute_glyph_string_overhangs): Compute overhangs
        for new font backend and composite cases.

emacs-devel discussion:

http://lists.gnu.org/archive/html/emacs-devel/2008-08/msg00236.html






             reply	other threads:[~2008-09-03 16:06 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <494134D7.9000502@f2s.com>
2008-09-03 16:06 ` Juanma Barranquero [this message]
2008-12-11 15:45   ` bug#872: marked as done (Crash displaying byte-code) Emacs bug Tracking System
2008-10-16 14:52 ` bug#1179: Emacs on Windows hangs displaying unibyte strings Juanma Barranquero
2008-10-17 11:48   ` Juanma Barranquero
2008-10-17 11:55     ` Processed: " Emacs bug Tracking System
2008-10-17 13:01     ` Eli Zaretskii
2008-10-17 13:32       ` Juanma Barranquero
2008-10-17 14:01         ` Eli Zaretskii
2008-10-17 14:14           ` Juanma Barranquero
2008-12-11 15:45   ` bug#1179: marked as done (Emacs on Windows hangs displaying unibyte strings) Emacs bug Tracking System
2008-11-28  4:15 ` bug#1446: 23.0.60; GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-11-28 crash on "C-h b" Feng li
2008-12-11 15:45   ` bug#1446: marked as done (23.0.60; GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600) of 2008-11-28 crash on "C-h b") Emacs bug Tracking System
2008-11-28  4:33 ` bug#1447: 23.0.60; emacs crash Feng li
2008-12-11 15:45   ` bug#1447: marked as done (23.0.60; emacs crash) Emacs bug Tracking System
2008-11-28  5:15 ` bug#1448: 23.0.60; update to cvs emacs crash report Feng li
2008-11-28  9:25   ` Juanma Barranquero
2008-11-28 10:56     ` Eli Zaretskii
2008-11-28 11:23       ` Juanma Barranquero
2008-11-28 12:06         ` Eli Zaretskii
2008-11-28 12:08           ` Juanma Barranquero
2008-11-30 22:11     ` Feng Li
2008-11-30 23:03       ` Juanma Barranquero
2008-12-04  2:47         ` Feng Li
2008-12-04  8:44           ` Juanma Barranquero
2008-12-04 13:31             ` Stefan Monnier
2008-12-04 14:51               ` Juanma Barranquero
2008-12-11 15:45   ` bug#1448: marked as done (23.0.60; update to cvs emacs crash report) Emacs bug Tracking System

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