bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1'

Path	csiph.com!goblin1!goblin.stu.neva.ru!usenet.stanford.edu!not-for-mail
From	Alexander Shukaev <emacs@Alexander.Shukaev.name>
Newsgroups	gnu.emacs.bug
Subject	bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1'
Date	Thu, 3 Sep 2020 11:50:53 +0200
Lines	22
Sender	"Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Approved	bug-gnu-emacs@gnu.org
Message-ID	<mailman.2171.1599126725.2469.bug-gnu-emacs@gnu.org> (permalink)
References	<7bb2d5e3-1abf-08d6-d7c8-0f1bd139815e@Alexander.Shukaev.name> <m2y2lr2uaw.fsf@gmail.com> <caae0787-d1bb-b4bf-93ff-c9e7f7147964@Alexander.Shukaev.name> <f0398105-c575-bcd7-0daa-54c6e1b2dbe9@Alexander.Shukaev.name> <m2mu272ppt.fsf@gmail.com> <3598262d-b65c-b1b4-310a-29149fd89ebf@Alexander.Shukaev.name> <04c384ac-bfbe-6073-829c-20712053bb1d@Alexander.Shukaev.name>
NNTP-Posting-Host	lists.gnu.org
Mime-Version	1.0
Content-Type	text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding	8bit
X-Trace	usenet.stanford.edu 1599126725 7367 209.51.188.17 (3 Sep 2020 09:52:05 GMT)
X-Complaints-To	action@cs.stanford.edu
Cc	43177@debbugs.gnu.org
To	Robert Pluim <rpluim@gmail.com>
Envelope-to	bug-gnu-emacs@gnu.org
X-Loop	help-debbugs@gnu.org
Resent-From	Alexander Shukaev <emacs@Alexander.Shukaev.name>
Original-Sender	"Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-CC	bug-gnu-emacs@gnu.org
Resent-Date	Thu, 03 Sep 2020 09:52:01 +0000
Resent-Message-ID	<handler.43177.B43177.159912666423476@debbugs.gnu.org>
Resent-Sender	help-debbugs@gnu.org
X-GNU-PR-Message	followup 43177
X-GNU-PR-Package	emacs
X-GNU-PR-Keywords
X-Originating-IP	95.223.75.175
In-Reply-To	<3598262d-b65c-b1b4-310a-29149fd89ebf@Alexander.Shukaev.name>
Content-Language	en-US
X-Spam-Score	0.0 (/)
X-BeenThere	debbugs-submit@debbugs.gnu.org
X-Mailman-Version	2.1.18
Precedence	list
Errors-To	debbugs-submit-bounces@debbugs.gnu.org
X-Spam-Score	-1.0 (-)
X-BeenThere	bug-gnu-emacs@gnu.org
List-Id	"Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs.gnu.org>
List-Unsubscribe	<https://lists.gnu.org/mailman/options/bug-gnu-emacs>, <mailto:bug-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive	<https://lists.gnu.org/archive/html/bug-gnu-emacs>
List-Post	<mailto:bug-gnu-emacs@gnu.org>
List-Help	<mailto:bug-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe	<https://lists.gnu.org/mailman/listinfo/bug-gnu-emacs>, <mailto:bug-gnu-emacs-request@gnu.org?subject=subscribe>
X-Mailman-Original-Message-ID	<04c384ac-bfbe-6073-829c-20712053bb1d@Alexander.Shukaev.name>
X-Mailman-Original-References	<7bb2d5e3-1abf-08d6-d7c8-0f1bd139815e@Alexander.Shukaev.name> <m2y2lr2uaw.fsf@gmail.com> <caae0787-d1bb-b4bf-93ff-c9e7f7147964@Alexander.Shukaev.name> <f0398105-c575-bcd7-0daa-54c6e1b2dbe9@Alexander.Shukaev.name> <m2mu272ppt.fsf@gmail.com> <3598262d-b65c-b1b4-310a-29149fd89ebf@Alexander.Shukaev.name>
Xref	csiph.com gnu.emacs.bug:134814

Show key headers only | View raw

On 03/09/2020 11:40, Alexander Shukaev wrote:
> (gdb) f 7
> #7  0x0000555555a8d875 in xfont_supported_scripts 
> (display=0x555556594940, fontname=0x55556a79e428 "-misc-trirong 
> medium-medium-i-normal--0-0-0-0-p-0-iso10646-1", props=XIL(0x7ffff27926e5),
>      encoding=0x7ffff23ab8d0) at xfont.c:266
> 266          xfont = XLoadQueryFont (display, fontname);
> (gdb) pp fontname
> #<INVALID_LISP_OBJECT 0x55556a79e428>
> (gdb) pp fontname
> #<INVALID_LISP_OBJECT 0x55556a79e428>
> (gdb) p fontname
> $3 = 0x55556a79e428 "-misc-trirong 
> medium-medium-i-normal--0-0-0-0-p-0-iso10646-1"
> (gdb)

It appears to always be different `fontname' here as I try multiple 
times to reproduce.  Maybe it's not really hanging but is merely 
ultra-slow somehow in looping over the fonts here.  Any ideas?

Back to gnu.emacs.bug | Previous | Next | Find similar

Thread

bug#43177: Bug: Emacs 27.1 hangs forever in `FcCharSetSubtractCount' from '/usr/lib/libfontconfig.so.1' Alexander Shukaev <emacs@Alexander.Shukaev.name> - 2020-09-03 11:50 +0200

csiph-web