From nobody Sat Mar 5 19:26:40 2022 X-Original-To: freebsd-stable@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 7EE7C19FAF01 for ; Sat, 5 Mar 2022 19:36:20 +0000 (UTC) (envelope-from pmc@citylink.dinoex.sub.org) Received: from uucp.dinoex.org (uucp.dinoex.org [IPv6:2a0b:f840::12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "uucp.dinoex.sub.de", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4K9w2C31Qpz3pc8 for ; Sat, 5 Mar 2022 19:36:18 +0000 (UTC) (envelope-from pmc@citylink.dinoex.sub.org) Received: from uucp.dinoex.sub.de (uucp.dinoex.org [185.220.148.12]) by uucp.dinoex.org (8.17.1/8.17.1) with ESMTPS id 225Ja4Tq058674 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Sat, 5 Mar 2022 20:36:05 +0100 (CET) (envelope-from pmc@citylink.dinoex.sub.org) X-MDaemon-Deliver-To: X-Authentication-Warning: uucp.dinoex.sub.de: Host uucp.dinoex.org [185.220.148.12] claimed to be uucp.dinoex.sub.de Received: (from uucp@localhost) by uucp.dinoex.sub.de (8.17.1/8.17.1/Submit) with UUCP id 225Ja4DZ058673 for freebsd-stable@freebsd.org; Sat, 5 Mar 2022 20:36:04 +0100 (CET) (envelope-from pmc@citylink.dinoex.sub.org) Received: from gate.intra.daemon.contact (gate-e [192.168.98.2]) by citylink.dinoex.sub.de (8.16.1/8.16.1) with ESMTP id 225JSssP029131 for ; Sat, 5 Mar 2022 20:28:54 +0100 (CET) (envelope-from peter@gate.intra.daemon.contact) Received: from gate.intra.daemon.contact (gate-e [192.168.98.2]) by gate.intra.daemon.contact (8.16.1/8.16.1) with ESMTPS id 225JQeEA028467 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Sat, 5 Mar 2022 20:26:40 +0100 (CET) (envelope-from peter@gate.intra.daemon.contact) Received: (from peter@localhost) by gate.intra.daemon.contact (8.16.1/8.16.1/Submit) id 225JQeqr028466 for freebsd-stable@freebsd.org; Sat, 5 Mar 2022 20:26:40 +0100 (CET) (envelope-from peter) Date: Sat, 5 Mar 2022 20:26:40 +0100 From: Peter To: freebsd-stable@freebsd.org Subject: Program crashes on stable/13 (but not on 12.3) Message-ID: List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Milter: Spamilter (Reciever: uucp.dinoex.sub.de; Sender-ip: 185.220.148.12; Sender-helo: uucp.dinoex.sub.de;) X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (uucp.dinoex.org [185.220.148.12]); Sat, 05 Mar 2022 20:36:07 +0100 (CET) X-Rspamd-Queue-Id: 4K9w2C31Qpz3pc8 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of pmc@citylink.dinoex.sub.org designates 2a0b:f840::12 as permitted sender) smtp.mailfrom=pmc@citylink.dinoex.sub.org X-Spamd-Result: default: False [-3.29 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.995]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; MIME_GOOD(-0.10)[text/plain]; HAS_XAW(0.00)[]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCVD_COUNT_THREE(0.00)[4]; PREVIOUSLY_DELIVERED(0.00)[freebsd-stable@freebsd.org]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_NA(0.00)[sub.org]; MLMMJ_DEST(0.00)[freebsd-stable]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:205376, ipnet:2a0b:f840::/32, country:DE]; RCVD_TLS_LAST(0.00)[] X-ThisMailContainsUnwantedMimeParts: N Hija, this program crashes SEGV on stable/13 after 135962 iterations, but continues to run on 12.3. My stable/13 is still at 22ba2970766 - if You happen to be on a newer level, then please just try this out. ------------------------------------------------------ #include #include #include main() { char buf[] = "12345678901234567890123456789012345678901234567890"; int fd = open("/dev/null", O_RDONLY); int i = 0; close(1); dup2(fd, 1); close(fd); while(1) { fputs(buf, stdout); fflush(stdout); i++; fprintf(stderr, "%d\n", i); } } ------------------------------------------------------ I know that the code is bogus, but this is exactly what one of our ports does (and why it started to crash after upgrading to stable/13). And I think it should not SEGV, anyway. For the full story, read here: https://forums.freebsd.org/threads/random-program-crashes-no-coredumps-and-error-94.84285/