From: Dmitry Antipov <dmantipov@yandex.ru>
To: Ken Raeburn <raeburn@permabit.com>
Cc: 17975@debbugs.gnu.org
Subject: bug#17975: 24.3.92; assertion failure deleting frames with varying names for the same display (and, using multiple X11 connections in that case too)
Date: Sun, 13 Jul 2014 14:49:11 +0400 [thread overview]
Message-ID: <53C26427.2050103@yandex.ru> (raw)
In-Reply-To: <53C21C84.6030207@yandex.ru>
On 07/13/2014 09:43 AM, Dmitry Antipov wrote:
> I'm afraid that we can't do anything useful on Emacs side because of libX11 bug.
> If you can rebuild libX11 from git, you can try this patch; I think we should
> create bug report at http://bugs.freedesktop.org...
BTW, can you also try to run under valgrind? When I'm trying Lucid build with:
valgrind --tool=memcheck ./src/temacs -Q --eval '(let ((f (selected-frame))) (make-frame-on-display ":0") (delete-frame f))'
I'm seeing a typical use-after-free error, most probably caused by libX11 bug:
==18243== Invalid read of size 1
==18243== at 0x4A09FA4: strcmp (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==18243== by 0x37D9069DE6: _XimUnRegisterIMInstantiateCallback (imInsClbk.c:238)
==18243== by 0x37D9050CC0: XUnregisterIMInstantiateCallback (IMWrap.c:200)
==18243== by 0x53841E: xim_close_dpy (xterm.c:8002)
==18243== by 0x53CFF4: x_delete_terminal (xterm.c:10465)
==18243== by 0x517BB2: Fdelete_terminal (terminal.c:348)
==18243== by 0x427EA6: delete_frame (frame.c:1412)
==18243== by 0x42841C: Fdelete_frame (frame.c:1522)
==18243== by 0x60A948: eval_sub (eval.c:2183)
==18243== by 0x605C55: Fprogn (eval.c:463)
==18243== by 0x607547: Flet (eval.c:971)
==18243== by 0x60A5DF: eval_sub (eval.c:2128)
==18243== Address 0x6435d50 is 0 bytes inside a block of size 1 free'd
==18243== at 0x4A07577: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==18243== by 0x37D906002F: XSetLocaleModifiers (lcWrap.c:90)
==18243== by 0x37DBC26AA7: _XtDefaultLanguageProc (Initialize.c:473)
==18243== by 0x37DBC27D77: _XtDisplayInitialize (Initialize.c:824)
==18243== by 0x37DBC1E6BA: XtOpenDisplay (Display.c:287)
==18243== by 0x53C036: x_term_init (xterm.c:9925)
==18243== by 0x546EB5: x_display_info_for_name (xfns.c:4356)
==18243== by 0x53D6F6: check_x_display_info (xfns.c:170)
==18243== by 0x543E41: Fx_create_frame (xfns.c:2910)
==18243== by 0x60C077: Ffuncall (eval.c:2810)
==18243== by 0x6565ED: exec_byte_code (bytecode.c:918)
==18243== by 0x60CD07: funcall_lambda (eval.c:3044)
With libX11 trunk from git and my patch from previous e-mail, there is no such error.
Dmitry
next prev parent reply other threads:[~2014-07-13 10:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-08 19:59 bug#17975: 24.3.92; assertion failure deleting frames with varying names for the same display (and, using multiple X11 connections in that case too) Ken Raeburn
2014-07-09 5:37 ` Dmitry Antipov
2014-07-11 21:22 ` Ken Raeburn
2014-07-13 5:43 ` Dmitry Antipov
2014-07-13 10:49 ` Dmitry Antipov [this message]
2014-07-13 10:56 ` Dmitry Antipov
2014-07-13 15:04 ` Eli Zaretskii
2014-07-13 15:54 ` Dmitry Antipov
2014-07-13 16:35 ` Eli Zaretskii
2014-07-13 18:01 ` Dmitry Antipov
2014-07-13 18:28 ` Eli Zaretskii
2014-07-14 5:20 ` Dmitry Antipov
2020-09-09 11:35 ` Lars Ingebrigtsen
2020-09-09 11:28 ` Lars Ingebrigtsen
2020-09-11 10:11 ` Dmitry Antipov
2020-09-11 12:54 ` Lars Ingebrigtsen
2020-09-11 13:01 ` Eli Zaretskii
2014-07-14 5:13 ` Ken Raeburn
2014-07-14 7:23 ` Dmitry Antipov
2014-07-14 8:10 ` Jan Djärv
2014-07-14 10:19 ` Dmitry Antipov
2014-07-14 18:58 ` Ken Raeburn
2016-04-13 18:19 ` Ken Raeburn
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