From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#31995: 26.1; Condition-case failed to catch error Date: Wed, 11 Jul 2018 17:48:53 -0400 Message-ID: <87d0vtbfzu.fsf@gmail.com> References: <0af47dad-c396-7e0d-04e2-ba029a5a37d8@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1531345691 11860 195.159.176.226 (11 Jul 2018 21:48:11 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Wed, 11 Jul 2018 21:48:11 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) Cc: 31995@debbugs.gnu.org To: Sheng Yang (=?UTF-8?Q?=E6=9D=A8=E5=9C=A3?=) Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed Jul 11 23:48:07 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fdMxw-0002ty-Bm for geb-bug-gnu-emacs@m.gmane.org; Wed, 11 Jul 2018 23:48:04 +0200 Original-Received: from localhost ([::1]:55574 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fdN03-0003ij-A1 for geb-bug-gnu-emacs@m.gmane.org; Wed, 11 Jul 2018 17:50:15 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:47776) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fdMzt-0003i3-NE for bug-gnu-emacs@gnu.org; Wed, 11 Jul 2018 17:50:06 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fdMzq-0001nd-KA for bug-gnu-emacs@gnu.org; Wed, 11 Jul 2018 17:50:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:48108) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fdMzq-0001nY-Gp for bug-gnu-emacs@gnu.org; Wed, 11 Jul 2018 17:50:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1fdMzq-00051b-7P for bug-gnu-emacs@gnu.org; Wed, 11 Jul 2018 17:50:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Noam Postavsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Wed, 11 Jul 2018 21:50:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 31995 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: wontfix Original-Received: via spool by 31995-submit@debbugs.gnu.org id=B31995.153134574519241 (code B ref 31995); Wed, 11 Jul 2018 21:50:02 +0000 Original-Received: (at 31995) by debbugs.gnu.org; 11 Jul 2018 21:49:05 +0000 Original-Received: from localhost ([127.0.0.1]:56005 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fdMyv-00050A-4O for submit@debbugs.gnu.org; Wed, 11 Jul 2018 17:49:05 -0400 Original-Received: from mail-io0-f171.google.com ([209.85.223.171]:41606) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fdMyq-0004zK-AN; Wed, 11 Jul 2018 17:49:00 -0400 Original-Received: by mail-io0-f171.google.com with SMTP id q9-v6so25824926ioj.8; Wed, 11 Jul 2018 14:49:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=Q64ui9h5Nrlxuq6azB+nl0TlQsGhH6UI3Tx9tzEGQ9M=; b=DRSbdUpjF31Pg8HXtPVyDm+NlbSSeHHEtWgqV8WbnZALkTrJJHeI2E0l4q/fGz2gql OezuWantdAO6e9OBG8/vcrbLuIgKVR8vqXybVit/lauhb00ZvxfGWv8sIghmmHE1JUBM 7dkgf/zK9/A7oMMKgIVShPgU+GbFycmqLFI8F2gSTODwgFhD0BJCIQgSmdEHsN7wlhoM ZMQBJ/sHUYlekrvxkskVunNogDk3Y3RrG0sqOvGGgMcUdoM0OQ+wLrTB6v4GjGKdlvo+ 6gWMHwxHxQOXCkSBNWkjb2YSf0TJSkwLgllmf6pqIn2yj+Kn4lCPi1FtoxoSaLpJ6CT2 aqkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=Q64ui9h5Nrlxuq6azB+nl0TlQsGhH6UI3Tx9tzEGQ9M=; b=oec9HKTJwecHsupUYkiJVYCVe8zvFd30fr3+jZVOanZHw7yCgAruudfZYlkiek+DD3 ACIc8BriwuEgFOvUKW1DTTYKt3T84ocZpPKlPByDcBRWAGHeSgaryLEYhFu46gjqHNoV Jfk1yKHCTplNNHzPvCYCmlLuy8+YLpiCOEGBXL9CgQHMvWbTVFzZbYE7HEsbg41xQpws dPjjKd1H/cakXQ7fVZkBGf6dNJun7okli2t4YRDNSfhaTxP8GISj/QKvztC8aRdWLc/1 vlzITvofNwONWwT2m+8Wx4dGJGgZIPqvqDgwGKaf7PnDbRIh6cvp3LLGD62Sq80xWUct ECvA== X-Gm-Message-State: AOUpUlEISCDKzVw+41oBK6FOs3zkN5LuZ1PQpHl9qZLeavti7bPKauyX fFsTDYPcFrBoZXtD1iaNJKcjtQ== X-Google-Smtp-Source: AAOMgpeHC6rZ2j5uHmNI+1/rDB93pTZDH91s85LdXwbne07a8YMra+5xXPd57e6YnefSAzeR29mBJw== X-Received: by 2002:a6b:1e86:: with SMTP id e128-v6mr2423058ioe.97.1531345734677; Wed, 11 Jul 2018 14:48:54 -0700 (PDT) Original-Received: from zebian (cbl-45-2-119-34.yyz.frontiernetworks.ca. [45.2.119.34]) by smtp.googlemail.com with ESMTPSA id g26-v6sm263407iti.0.2018.07.11.14.48.53 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 11 Jul 2018 14:48:54 -0700 (PDT) In-Reply-To: <0af47dad-c396-7e0d-04e2-ba029a5a37d8@gmail.com> ("Sheng Yang \=\?utf-8\?B\?KOadqAnlnKMpIidz\?\= message of "Thu, 28 Jun 2018 09:54:41 -0700") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] 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" Xref: news.gmane.org gmane.emacs.bugs:148455 Archived-At: retitle 31995 Condition-case can't catch C stack overflow tags 31995 + wontfix quit Sheng Yang (=E6=9D=A8=E5=9C=A3) writes: > It seems that the function call ~(read (current-buffer))~ causes C stack > overflow. Though I personally believe the undo-tree file is not > corrupted, I assume this error should be caught by condition-case even > if the file to read is indeed corrupted. The file is not corrupted, it's just that the recursion goes too deep during reading. However, I don't think condition-case can reasonably catch C stack overflow. As it is, recovering from C stack overflow at all is a bit controversial, which is why we have the attempt-stack-overflow-recovery variable which you can set to nil in order to reliably segfault instead.