Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:108294 Return-Path: Delivered-To: mailing list internals@lists.php.net Received: (qmail 12180 invoked from network); 28 Jan 2020 18:18:23 -0000 Received: from unknown (HELO php-smtp4.php.net) (45.112.84.5) by pb1.pair.com with SMTP; 28 Jan 2020 18:18:23 -0000 Received: from php-smtp4.php.net (localhost [127.0.0.1]) by php-smtp4.php.net (Postfix) with ESMTP id 5779718050F for ; Tue, 28 Jan 2020 08:28:50 -0800 (PST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on php-smtp4.php.net X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,HTML_MESSAGE, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.2 X-Spam-ASN: AS15169 209.85.128.0/17 X-Spam-Virus: No X-Envelope-From: Received: from mail-ot1-f53.google.com (mail-ot1-f53.google.com [209.85.210.53]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by php-smtp4.php.net (Postfix) with ESMTPS for ; Tue, 28 Jan 2020 08:28:49 -0800 (PST) Received: by mail-ot1-f53.google.com with SMTP id 66so12552657otd.9 for ; Tue, 28 Jan 2020 08:28:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=huFYSzFMOPZpzQhKHh9gzyLfxf2X4NlD2YL4y/pM2N4=; b=jmnA7ZCruML8O6RMxhmDfGuFD09auangkCLjVXMmF/62ubAaQZZDNhQMuf+Zjl+5ey lPWmXhAiLxhy9Am+9lNee8YoTDa+aHVWVf0HkU9VcFZ87AsgYvHDwRe00OKTg4rbPl8n ZvAN5iYEhzgT/Ay4Hza2mWW5+2iWC9Nju8bguXN4VdCD7iS6E5dDFM2ZEx2LMN2L31XM k7/oZxY9f0EY/Guaj53r8e1dhBmmC98fxj98lTHmoDWkPNvC9I+DEBsdr7H0KVE4AbB1 RaRT/Avy9/qrqLj9s/CwloK1ME+YuePH4AMW1cvbdbfNBaQJGZ/EbMeg29U9HOksvGon LH1Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=huFYSzFMOPZpzQhKHh9gzyLfxf2X4NlD2YL4y/pM2N4=; b=i/0Mf+6RY4/zbKV6BEZs4MMQMHaWJqTJVUdXrBBGWxU9n3D6AScERvmChjn4nlyMsV zZTs1VOmYrqPDCStpqEEBGq518aqTMS+YU8PrF7WO5bpI/nyP+OQrWpnWCmlqEQIm7Lo Ms4iX4vEroXOYGOWkxOqrj/TiPY46nZfEPa+IOSjaGiyKg6b7YlNcf87IkYWZ6TrudbU DKLD/xZ2jM5YikrCiOOZvbjFIUQHvJ0QZ/CZa/rpVrngqZMcumVN+1ftecljyRWb8jDT tUrnNCLVYl0B1mbtv4nim4c3GZXXYv9NssfBT8xQTnLJxwPRkvJhuE13mNd5nB9uYbbD T9Aw== X-Gm-Message-State: APjAAAXd6LKuDrcCQpnF1bFJGKcOsCIkgV9L/1ITb584nkgP/ZdnnO62 Y4sQJXrbIhOiaV+JHks2HXCvGfX/ftjLjsbH+mUcT9x1 X-Google-Smtp-Source: APXvYqxb2K4MabXY9kujQcNL53QVVWjlRZMvy2hFgbAB33kppP3jJFi+y1EDItrhw5TIiD9BOvW10IYc516Dg7qLa0w= X-Received: by 2002:a9d:6251:: with SMTP id i17mr17515947otk.14.1580228929252; Tue, 28 Jan 2020 08:28:49 -0800 (PST) MIME-Version: 1.0 Date: Tue, 28 Jan 2020 17:28:36 +0100 Message-ID: To: PHP Internals Content-Type: multipart/alternative; boundary="000000000000fdf18a059d35b76e" Subject: How to debug a segmentation fault? From: benjamin.morel@gmail.com (Benjamin Morel) --000000000000fdf18a059d35b76e Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi internals, I'm encountering a SIGSEGV in PHP-FPM on PHP 7.4.2 in a Symfony app. The bug seems to happen during the rendering of a Twig template; this makes it hard for me to pinpoint the code that triggers the segfault. Could you please tell me what the procedure to collect information is, so that I can file a useful bug report? Thank you, =E2=80=94 Benjamin --000000000000fdf18a059d35b76e--