The `strsignal(SIGNUM)' function from libc returns a pointer to a string
containing a message describing the signal SIGNUM.
Emacs `status_message' function from `src/process.c' attempts to
downcase the initial character of this string to print it in the echo
area:
signame = strsignal (code);
string = build_string (signame);
SSET (string, 0, DOWNCASE (SREF (string, 0)));
As it has already been discussed in bug #778, using SSET/SREF is
incorrect when `string' is multibyte, which is the case for certain
locales like ru_RU.UTF-8. A patch similar to one proposed by Kenichi
Handa for bug #778 fixes this problem, too. The patch is attached.
process-status-message-fix-multibyte.diff
Description: Text Data
To reproduce the crash caused by this problem, it's sufficient to call `recompile' when the compilation buffer has running process inside (which sometimes occurs when compiling TeX documents, for example). I've attached the GDB backtrace; the top of the stack gave me the hint that this problem is nearly the same as in bug #778.
gdb-backtrace
Description: Binary data
The rest of this message contains information about my Emacs installation. In GNU Emacs 23.0.94.1 (i686-pc-linux-gnu, GTK+ Version 2.14.7) of 2009-05-29 on blizzard Windowing system distributor `The X.Org Foundation', version 11.0.10503000 configured using `configure '--prefix=/usr' '--host=i686-pc-linux-gnu' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib' '--program-suffix=-emacs-23' '--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x' '--with-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--with-xft' '--without-libotf' '--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' '--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus' '--build=i686-pc-linux-gnu' 'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu' 'CFLAGS=-O2 -march=native -pipe' 'LDFLAGS=-Wl,-O1'' Important settings: value of $LC_ALL: value of $LC_COLLATE: nil value of $LC_CTYPE: nil value of $LC_MESSAGES: nil value of $LC_MONETARY: nil value of $LC_NUMERIC: C value of $LC_TIME: nil value of $LANG: ru_RU.UTF-8 value of $XMODIFIERS: nil locale-coding-system: utf-8-unix default-enable-multibyte-characters: t -- Happy Hacking. http://sphinx.net.ru む
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