From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: martin rudalics Newsgroups: gmane.emacs.bugs Subject: bug#22012: 25.1.50; gdb broken by (json-string-format "doesn't start with `\"'!") Date: Thu, 26 Nov 2015 17:58:22 +0100 Message-ID: <56573A2E.5000809@gmx.at> References: <5655F4AD.4020503@gmx.at> <56566FD1.2050305@yandex.ru> <5656C1BE.400@gmx.at> <5656E430.8030809@yandex.ru> <565709C9.8080306@gmx.at> <56571697.50702@yandex.ru> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1448557186 21031 80.91.229.3 (26 Nov 2015 16:59:46 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 26 Nov 2015 16:59:46 +0000 (UTC) To: Dmitry Gutov , 22012@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Nov 26 17:59:33 2015 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 1a1zt2-00085b-Na for geb-bug-gnu-emacs@m.gmane.org; Thu, 26 Nov 2015 17:59:12 +0100 Original-Received: from localhost ([::1]:52285 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1zt5-0005Cd-4j for geb-bug-gnu-emacs@m.gmane.org; Thu, 26 Nov 2015 11:59:15 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:55816) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1zsv-00051J-PR for bug-gnu-emacs@gnu.org; Thu, 26 Nov 2015 11:59:06 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a1zss-0002cL-LP for bug-gnu-emacs@gnu.org; Thu, 26 Nov 2015 11:59:05 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:36594) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a1zss-0002cH-I1 for bug-gnu-emacs@gnu.org; Thu, 26 Nov 2015 11:59:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1a1zss-00006k-Ei for bug-gnu-emacs@gnu.org; Thu, 26 Nov 2015 11:59:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: martin rudalics Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 26 Nov 2015 16:59:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 22012 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 22012-submit@debbugs.gnu.org id=B22012.1448557111353 (code B ref 22012); Thu, 26 Nov 2015 16:59:02 +0000 Original-Received: (at 22012) by debbugs.gnu.org; 26 Nov 2015 16:58:31 +0000 Original-Received: from localhost ([127.0.0.1]:54530 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1a1zsN-00005c-FM for submit@debbugs.gnu.org; Thu, 26 Nov 2015 11:58:31 -0500 Original-Received: from mout.gmx.net ([212.227.17.21]:55558) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1a1zsL-00005U-Og for 22012@debbugs.gnu.org; Thu, 26 Nov 2015 11:58:30 -0500 Original-Received: from [192.168.1.100] ([213.162.68.43]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0LjdS8-1adWYO3reS-00bXgJ; Thu, 26 Nov 2015 17:58:29 +0100 In-Reply-To: <56571697.50702@yandex.ru> X-Provags-ID: V03:K0:xKHn3UBaILiI1MHtG/mNZXXdVutrSiciV6O3tqVG1FPRYQRYr82 pHEDQlldnLfIXtDQziagpNrAaC/PmuoSBmnSlLx7A6yf/GircIG9rqwMiDcUwVc1tOMmZxW fmNv+0M3oVWZDsTXdD2YoaM9I63vDNjf84jT/2ZLAOKY/5EomUY7H54HwwIhKMqJmmJ7wtu PLrQAfvVT2HiYqNRvcUFQ== X-UI-Out-Filterresults: notjunk:1;V01:K0:8Oxs7CCS+vs=:VrigklufAJIDqpUGhSbqxd DcreH+kI8GNmYQmhumjJQDmvGx0jRGjOar27EekgQet4nDvEunUAuBr7z7cM6PV4i2XkLgF8a J5ngUv/Ligzi/WkGDbkdFp7jeaLp8xq4Jaoa1MHcSGIo5dATCe738FnZ8lbKut99bhDDGSnLY RaacI6qJxNYvDi1hx/xcUD2wsbAJiaULBmO7H7zvQesS/saAljZBAVCDYHsbQb9mm9O53csoS s1t7WK5HR8+oirHie7jsHgDiPiGhnzMb3tzturdiBgGA/sTgRoxmR0jpxHlYeGahQ6JDTX4PM i+xUEKn17ZLo/Hhm4FtPyVUi3oQhBx7oRWODzb4mGMIlHBNZ/PDHs7/Gg707gi+sKd7ao4n/R 1wxxrW+Xu5E7UnFN9VVOoqAE8FtMyx74bc33gWFXPKwpFfGqnZku2D0TTNYwiUNYzglZi/bMU i6Tqj0I0GfibA7KbDTTliv/n2SGb16Aba9IvEK9fYH3F9NXDQqlt/UjHyr5nsvbJf0adNdEE0 TB/o2fR+8QrAuYe/InwAl5sfp9wAxvr8bOUDHL4E9U1HelHePB2879dJUzV3B2qbKu6ZbTujq zDA09l0AXmi5RXPHAzcuHVp9mgaejTJ02jTMal6PReW40lgi57adaIFso2VlXyXlmOhGmTQbG oBy6L7n7UnACnCOqFOOU0FqezWGA1goqvZTG2jGewozW4PPzcbrnn/1zkxmlqoPvbY6jEHPvP icBdoOxjkwClRksEPMrOgoUn8haqgp7OrBfEe/xYntJ3C7N9KC3NPHbMWsiflutrme0WKyev 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: 208.118.235.43 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:109299 Archived-At: >> How would I know what what =E2=80=98json-read-string=E2=80=99 tries t= o read at that >> moment? Am I supposed to instrument it? > > Why not? Debugging the debugger while debugging? > Alternatively... You mean there's none? >> Maybe >> >> (unless (char-equal (json-peek) ?\") >> (signal 'json-string-format (list "doesn't start with `\"'!"))) > > ...you can add a (debug) call before (signal ...). And when the debugg= er hits, press `e' and evaluate (buffer-string) and (point). > > Seeing the value of buffer-string might be sufficient if json-read is = being called in a wrong buffer. But what is the use of the above signal when it doesn't tell me where to find the source of the problem? >> should report the current buffer and its value of point. > > I wouldn't mind if it did. Though that would need to be done in all su= ch places. Which places? > But for the purposes of debugging, you can modify just that function's= definition to report what's required. I do so already. Now it stopped complaining. Yet another Heisenbug. >> Anyway, if I understand the backtrace correctly, the current buffer >> should have been "*breakpoints of emacs.exe*". > > I'm not sure what that implies. Does it have JSON content? What is JSON content? martin