From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#18438: 24.4.50; assertion failed in bidi.c Date: Thu, 18 Sep 2014 17:42:17 +0300 Message-ID: <8361gl2do6.fsf@gnu.org> References: <4745242cd3e424a6c4d5db0e8d3e33d0@amuri.net> <54109EB5.2060801@amuri.net> <8338bz9tt7.fsf@gnu.org> <153d642db591b29dba44712b44194385@amuri.net> <8361gt8jjz.fsf@gnu.org> <8338bx8enz.fsf@gnu.org> <47b6853869d32221142fecc7dff1d3e8@amuri.net> <83sijs46yu.fsf@gnu.org> <83ppev4ouy.fsf@gnu.org> <8361gm4yy1.fsf@gnu.org> <9e9d2525ec6fde394c3be85b2a97a306@amuri.net> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1411051438 6750 80.91.229.3 (18 Sep 2014 14:43:58 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 18 Sep 2014 14:43:58 +0000 (UTC) Cc: 18438@debbugs.gnu.org To: aidalgol@amuri.net Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Sep 18 16:43:50 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XUcvu-00036S-SB for geb-bug-gnu-emacs@m.gmane.org; Thu, 18 Sep 2014 16:43:42 +0200 Original-Received: from localhost ([::1]:51558 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XUcvu-00062f-Gs for geb-bug-gnu-emacs@m.gmane.org; Thu, 18 Sep 2014 10:43:42 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36437) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XUcvS-0005ax-2a for bug-gnu-emacs@gnu.org; Thu, 18 Sep 2014 10:43:19 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XUcvL-0005eX-WB for bug-gnu-emacs@gnu.org; Thu, 18 Sep 2014 10:43:13 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53052) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XUcvL-0005dn-Ty for bug-gnu-emacs@gnu.org; Thu, 18 Sep 2014 10:43:07 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1XUcvG-0004HR-ET for bug-gnu-emacs@gnu.org; Thu, 18 Sep 2014 10:43:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 18 Sep 2014 14:43:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18438 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 18438-submit@debbugs.gnu.org id=B18438.141105134216402 (code B ref 18438); Thu, 18 Sep 2014 14:43:02 +0000 Original-Received: (at 18438) by debbugs.gnu.org; 18 Sep 2014 14:42:22 +0000 Original-Received: from localhost ([127.0.0.1]:44616 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XUcub-0004GT-Se for submit@debbugs.gnu.org; Thu, 18 Sep 2014 10:42:22 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:49875) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1XUcuX-0004GE-0g for 18438@debbugs.gnu.org; Thu, 18 Sep 2014 10:42:19 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0NC300K00Q0PN800@a-mtaout22.012.net.il> for 18438@debbugs.gnu.org; Thu, 18 Sep 2014 17:42:15 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NC300KEFQ6E09A0@a-mtaout22.012.net.il>; Thu, 18 Sep 2014 17:42:15 +0300 (IDT) In-reply-to: <9e9d2525ec6fde394c3be85b2a97a306@amuri.net> X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:93466 Archived-At: > Date: Thu, 18 Sep 2014 16:59:34 +1200 > From: aidalgol@amuri.net > Cc: Eli Zaretskii > > > My reading of this is: > > > > . the value being tested is originally in ECX > > . it is stored in a temporary local variable at RBP+0x10 > > . then it is compared with 0x17 (decimal 23) > > > > So you have two places to check: the ECX register and the value > > pointed to by RBP+0x10. > > Here we are: > > (gdb) print $ecx > $3 = 6 > (gdb) x $rbp+0x10 > 0x222e10: 0x00000001 Thanks. Both values are valid, although the second one is probably the accurate one. So again, this is a riddle for which I have no clues. Perhaps the strange backtraces reported in bug #17753, and the discussion Ken started on the Cygwin list about that, will bring some insight (e.g., is it possible that this code also runs in some other thread?).