From: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
To: Kenichi Handa <handa@m17n.org>
Cc: Chong Yidong <cyd@stupidchicken.com>, 3158@emacsbugs.donarmstrong.com
Subject: bug#3158: 23.0.92; assertion failure in fontset_find_font
Date: Thu, 30 Apr 2009 14:54:37 +0900 [thread overview]
Message-ID: <wlljpiu1nm.wl%mituharu@math.s.chiba-u.ac.jp> (raw)
In-Reply-To: <E1LzOFv-0005Cv-Id@etlken>
>>>>> On Thu, 30 Apr 2009 13:52:19 +0900, Kenichi Handa <handa@m17n.org> said:
>> > 1. Compile Emacs with "make CFLAGS='-g -DENABLE_CHECKING'"
>> > 2. emacs -Q
>> > 3. M-x list-charset-chars RET mac-roman RET
>> >
>> > .../src/fontset.c:551: Emacs fatal error: assertion failed:
>> > VECTORLIKEP((rfont_def))
>> >
>> > The value of rfont_def is nil when this failure happens.
>> I think the relevant code in fontset_find_font needs to check when
>> rfont_def is nil, and ignore those values. Handa-san, could you verify?
> I fixed it by breaking the loop instead of ignoring that
> element because rfont_def nil means "don't try the remaining
> fonts and the fallback fonts".
I still have an assertion violation with the above procedure at a
different line:
...src/fontset.c:634: Emacs fatal error: assertion failed: VECTORLIKEP((rfont_def))
#3 0x0024256c in fontset_find_font (fontset=17306132, c=57374, face=0x10877e0, id=147, fallback=0) at /Users/mituharu/src/cvs/emacs-23/emacs/src/fontset.c:634
634 if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def))
(gdb) list
629 and supporting C. */
630 font_def = RFONT_DEF_FONT_DEF (rfont_def);
631 for (i++; i < ASIZE (vec); i++)
632 {
633 rfont_def = AREF (vec, i);
634 if (! EQ (RFONT_DEF_FONT_DEF (rfont_def), font_def))
635 break;
636 font_object = RFONT_DEF_OBJECT (AREF (vec, i));
637 if (! NILP (font_object) && font_has_char (f, font_object, c))
638 return rfont_def;
(gdb) call debug_print (rfont_def)
nil
(gdb) call debug_print (vec)
[[nil [#<font-spec nil nil nil nil iso10646-1 nil nil nil nil nil nil nil nil> 142 nil] #<font-object "-bitstream-Bitstream Vera Sans Mono-normal-normal-normal-*-12-*-*-*-m-0-iso10646-1"> 0] nil]
(gdb) p i
$1 = 1
YAMAMOTO Mitsuharu
mituharu@math.s.chiba-u.ac.jp
next prev parent reply other threads:[~2009-04-30 5:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-30 3:11 bug#3158: 23.0.92; assertion failure in fontset_find_font Chong Yidong
[not found] ` <E1LzOFv-0005Cv-Id@etlken>
2009-04-29 1:58 ` YAMAMOTO Mitsuharu
2009-04-30 5:00 ` bug#3158: marked as done (23.0.92; assertion failure in fontset_find_font) Emacs bug Tracking System
2009-04-30 5:54 ` YAMAMOTO Mitsuharu [this message]
2009-04-30 7:06 ` bug#3158: 23.0.92; assertion failure in fontset_find_font Kenichi Handa
2009-04-30 7:38 ` YAMAMOTO Mitsuharu
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