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bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs
From: |
Josh Berdine |
Subject: |
bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs |
Date: |
Fri, 18 Nov 2016 21:31:49 +0000 |
I have encountered a crash in ns_compute_glyph_string_overhangs, seems likely
to be the same issue. I hit this when using the notmuch email client with a
message with the following subject header:
Subject: =?UTF-8?B?W1JvYm90IEhvdXNlXSDwn42V?=
=?UTF-8?B?8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V?=
=?UTF-8?B?8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V8J+NlfCfjZXwn42V?=
I am running GNU Emacs 25.1.1 (x86_64-apple-darwin13.4.0, NS appkit-1265.21
Version 10.9.5 (Build 13F1911)) of 2016-09-17
I attached lldb to a running emacs and then executed a `notmuch-search` that
included the message with above subject. Backtrace is:
(lldb) c
Process 42346 resuming
Process 42346 stopped
* thread #1: tid = 0x449aca, 0x00000001001b5767
Emacs-x86_64-10_9`ns_compute_glyph_string_overhangs + 119, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0xd0)
frame #0: 0x00000001001b5767
Emacs-x86_64-10_9`ns_compute_glyph_string_overhangs + 119
Emacs-x86_64-10_9`ns_compute_glyph_string_overhangs:
-> 0x1001b5767 <+119>: movq 0xd0(%rdi), %rax
0x1001b576e <+126>: cmpq $0x7e00, (%rax) ; imm = 0x7E00
0x1001b5775 <+133>: jne 0x1001b579b ; <+171>
0x1001b5777 <+135>: xorl %eax, %eax
(lldb) bt
* thread #1: tid = 0x449aca, 0x00000001001b5767
Emacs-x86_64-10_9`ns_compute_glyph_string_overhangs + 119, queue =
'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0xd0)
* frame #0: 0x00000001001b5767
Emacs-x86_64-10_9`ns_compute_glyph_string_overhangs + 119
frame #1: 0x00000001000379d7 Emacs-x86_64-10_9`draw_glyphs + 3415
frame #2: 0x0000000100036c16 Emacs-x86_64-10_9`x_write_glyphs + 166
frame #3: 0x0000000100009e3e Emacs-x86_64-10_9`update_window_line + 670
frame #4: 0x0000000100005edc Emacs-x86_64-10_9`update_window + 4588
frame #5: 0x00000001000046a4 Emacs-x86_64-10_9`update_window_tree + 116
frame #6: 0x00000001000044e7 Emacs-x86_64-10_9`update_frame + 135
frame #7: 0x00000001000275d2 Emacs-x86_64-10_9`redisplay_internal + 5666
frame #8: 0x00000001000283fc Emacs-x86_64-10_9`redisplay_preserve_echo_area
+ 44
frame #9: 0x000000010017a553 Emacs-x86_64-10_9`wait_reading_process_output
+ 1651
frame #10: 0x00000001000076bd Emacs-x86_64-10_9`sit_for + 253
frame #11: 0x00000001000c1996 Emacs-x86_64-10_9`read_char + 6006
frame #12: 0x00000001000be2ec Emacs-x86_64-10_9`read_key_sequence + 2092
frame #13: 0x00000001000bca02 Emacs-x86_64-10_9`command_loop_1 + 1154
frame #14: 0x0000000100138196 Emacs-x86_64-10_9`internal_condition_case + 70
frame #15: 0x00000001000cd620 Emacs-x86_64-10_9`command_loop_2 + 48
frame #16: 0x0000000100137cf6 Emacs-x86_64-10_9`internal_catch + 54
frame #17: 0x00000001000bbc4e Emacs-x86_64-10_9`command_loop + 158
frame #18: 0x00000001000bbb65 Emacs-x86_64-10_9`recursive_edit_1 + 117
frame #19: 0x00000001000bbd8c Emacs-x86_64-10_9`Frecursive_edit + 220
frame #20: 0x00000001000baa5e Emacs-x86_64-10_9`main + 5854
frame #21: 0x00007fff9b4225ad libdyld.dylib`start + 1
frame #22: 0x00007fff9b4225ad libdyld.dylib`start + 1
Using Aaron's test-file, `/Applications/Emacs.app/Contents/MacOS/Emacs -Q
test-file` crashes with the same backtrace. If I leave out -Q, however, it
does not crash.
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs,
Josh Berdine <=
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Eli Zaretskii, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Alan Third, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Eli Zaretskii, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Alan Third, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Eli Zaretskii, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Alan Third, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Eli Zaretskii, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Alan Third, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Eli Zaretskii, 2016/11/19
- bug#22818: 25.1.1 Emacs.app crash ns_compute_glyph_string_overhangs, Alan Third, 2016/11/19