From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from sonic302-3.consmr.mail.bf2.yahoo.com (sonic302-3.consmr.mail.bf2.yahoo.com [74.6.135.42]) by sourceware.org (Postfix) with ESMTPS id 1ACAD3851C20 for ; Fri, 6 Nov 2020 18:11:02 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 1ACAD3851C20 X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1604686260; bh=ok4lWLczmkcdh1Jb+YJTtMTPuyxv1rSO434kW6W1qZg=; h=Date:From:To:Subject; b=XPdBY2KIgtQumLpGwDgjFwKFCzCzDi4dhB4J3Pn6J/831uhJLn3SnL1qaQBW0K2JUqDRvKinohn7ryR64IFLPVEiIVRyGRm2bSYRvA5VGIZt6uQZTk19WG9XvyNtOv9rOwKjwVkcQIUDYwPD7SpqbHEbYZtenGkNUkjjuwV95Bqu+3UeVWhWwzBxlBvtDlcuBKRkt5hkBPMbV4RBFOsEuNlJQ0APb89eH+12OmlQmjR3963B5WGh+yV4U/ifJhjar66hFJhtHjY0miypZiKL1yIDDk7ceZ846ihMQOtbiHf61nteY9Va+zI1KRkccgaka52BROkIcWUJu2oWlIcJ+g== X-YMail-OSG: eg0.a04VM1m6LXgF5ASxD31.LYV4GtGm0jKdil4j6UdiwwF2ZfUBL8nOcYmJgZ. 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MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Mailer: WebService/1.1.16944 YMailNorrin Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.183 Safari/537.36 X-Spam-Status: No, score=1.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, PDS_OTHER_BAD_TLD, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gdb@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Nov 2020 18:11:06 -0000 Thank you. I did what you said: (gdb) run Starting program: /usr/local/bin/ramme=C2=A0 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Program received signal SIGSEGV, Segmentation fault. 0x0000000000e6e0c0 in ?? () (gdb) backtrace=C2=A0 #0=C2=A0 0x0000000000e6e0c0 in ?? () #1=C2=A0 0x00007ffff7d85462 in node::http2::Http2Session::Callbacks::Callba= cks(bool) =C2=A0 =C2=A0 () from /opt/Ramme/libnode.so #2=C2=A0 0x00007ffff7d85525 in ?? () from /opt/Ramme/libnode.so #3=C2=A0 0x00007ffff7fe437a in call_init (l=3D, argc=3Dargc@= entry=3D1,=C2=A0 =C2=A0 =C2=A0 argv=3Dargv@entry=3D0x7fffffffe248, env=3Denv@entry=3D0x7ffff= fffe258) =C2=A0 =C2=A0 at dl-init.c:72 #4=C2=A0 0x00007ffff7fe4476 in call_init (env=3D0x7fffffffe258, argv=3D0x7f= ffffffe248,=C2=A0 =C2=A0 =C2=A0 argc=3D1, l=3D) at dl-init.c:30 #5=C2=A0 _dl_init (main_map=3D0x7ffff7ffe190, argc=3D1, argv=3D0x7fffffffe2= 48,=C2=A0 =C2=A0 =C2=A0 env=3D0x7fffffffe258) at dl-init.c:119 #6=C2=A0 0x00007ffff7fd60ca in _dl_start_user () from /lib64/ld-linux-x86-6= 4.so.2 #7=C2=A0 0x0000000000000001 in ?? () #8=C2=A0 0x00007fffffffe52b in ?? () #9=C2=A0 0x0000000000000000 in ?? () What is the next step? On Thursday, November 5, 2020, 05:13:30 PM GMT+3:30, Simon Marchi wrote:=20 On 2020-11-03 11:54 a.m., Jason Long via Gdb wrote: > Hello, > I'm using Debian 10.6 x86_64 and when I want to run a program then it sho= w me "Segmentation fault" error. > How can use gdb to find the reason of it? > I used strace to generate an output and posted it here: https://pastebin.= fun/NY4RUEmyzO > > I'm thankful if anyone advice me step by step. > > Thank you. > Hi Jason, In its most simple expressioj, just load the program in GDB: =C2=A0 $ gdb and run it: =C2=A0 (gdb) run If the program crashes (receives a SIGSEGV / segmentation fault signal), it will stop and you'll be able to inspect the state of the program at that moment.=C2=A0 For example, you'll be able to use the "backtrace" comma= nd to get an idea of wherwe the program was. Simon