From owner-freebsd-threads@FreeBSD.ORG Wed Mar 14 23:10:03 2007 Return-Path: X-Original-To: freebsd-threads@hub.freebsd.org Delivered-To: freebsd-threads@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id DD5EE16A400 for ; Wed, 14 Mar 2007 23:10:03 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [69.147.83.40]) by mx1.freebsd.org (Postfix) with ESMTP id B933713C4BC for ; Wed, 14 Mar 2007 23:10:03 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id l2ENA3lk026641 for ; Wed, 14 Mar 2007 23:10:03 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.4/8.13.4/Submit) id l2ENA3in026640; Wed, 14 Mar 2007 23:10:03 GMT (envelope-from gnats) Resent-Date: Wed, 14 Mar 2007 23:10:03 GMT Resent-Message-Id: <200703142310.l2ENA3in026640@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-threads@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Oles Hnatkevych Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 76E2216A400 for ; Wed, 14 Mar 2007 23:03:23 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [69.147.83.33]) by mx1.freebsd.org (Postfix) with ESMTP id 597D013C44B for ; Wed, 14 Mar 2007 23:03:23 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.13.1/8.13.1) with ESMTP id l2EN3MQN056444 for ; Wed, 14 Mar 2007 23:03:22 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.13.1/8.13.1/Submit) id l2EN3MPP056443; Wed, 14 Mar 2007 23:03:22 GMT (envelope-from nobody) Message-Id: <200703142303.l2EN3MPP056443@www.freebsd.org> Date: Wed, 14 Mar 2007 23:03:22 GMT From: Oles Hnatkevych To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.0 Cc: Subject: threads/110306: apache 2.0 segmentation violation when calling gethostbyname X-BeenThere: freebsd-threads@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Threading on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Mar 2007 23:10:03 -0000 >Number: 110306 >Category: threads >Synopsis: apache 2.0 segmentation violation when calling gethostbyname >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-threads >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Mar 14 23:10:03 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Oles Hnatkevych >Release: 6.2-STABLE >Organization: >Environment: FreeBSD murzik.oles.net 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Thu Dec 28 17:06:26 EET 2006 root@murzik.oles.net:/usr/obj/usr/src/sys/MURZIK i386 >Description: "apachectl restart" causes apache httpd process to dump core: Mar 15 00:32:27 murzik kernel: pid 95239 (httpd), uid 0: exited on signal 11 (core dumped) The problem happens if php module is loaded and ServerName is not defined in httpd.conf. It's believed that the problem happens on FreeBSD only and the cause of the problem is bug in threading functions, not the apache or php bug. Apache is 2.0.59, php is 5.1.5 (but seems to be irrelevant) The backtrace: (gdb) bt full #0 0x28d1a034 in ?? () No symbol table info available. #1 0x28427832 in pthread_main_np_int () at /usr/src/lib/libc/gen/_pthread_stubs.c:183 No locals. #2 0x2840595e in __hostdata_init () at /usr/src/lib/libc/net/gethostnamadr.c:67 he = (struct hostdata *) 0xbfbfebf4 #3 0x28406264 in gethostbyname (name=0xbfbfe5b0 "murzik.oles.net") at /usr/src/lib/libc/net/gethostnamadr.c:363 hd = (struct hostdata *) 0x0 rval = (struct hostent *) 0xa ret_h_errno = 675506452 #4 0x08070f11 in ap_get_local_host (a=0x80a6018) at util.c:2045 str = "murzik.oles.net\000\000\000\000\000\001\000\000\000\002\000\000\000N\2203(▒忿\n\000\000\002\000\000\000\000\004\000\000\000\001\000\000\000P▒3(H濿\031▒2(y▒\026\b0濿\020\000\000\000\215▒2(y4\vD▒꿿\000▒\026\bn▒2(\204▒\026\b4濿\004\000\000\000X▒2(h\2203(\001\000\000\000\002\000\000\000N\2203(7濿\n\000\000\002\000\000\000\000\004\000\000\000\001\000\000\000P▒3(x濿\021▒2(y▒\026\b\204▒\026\bH翿▒▒2(@=I(▒▒\t\b\002\000\000\000\002\000\000\000\001\000\000\000P▒3("... server_hostname = 0x0 p = (struct hostent *) 0x816c500 #5 0x0806cdc7 in ap_fini_vhost_config (p=0x80a6018, main_s=0x80a7df8) at vhost.c:535 sar = (server_addr_rec *) 0x0 has_default_vhost_addr = 135445688 s = (server_rec *) 0x80a7df8 i = 134897688 iphash_table_tail = {0x40, 0x80b2968, 0x0, 0x28438480, 0x2844d9e4, 0x82a8140, 0xbfbfe7c8, 0x283c2b29, 0x80a6018, 0x8, 0xbfbfe748, 0x806db14, 0x6c, 0x80b29d0, 0x3, 0x80b29d0, 0x80b2858, 0x80b2000, 0x0, 0x0, 0x755, 0x41ed0008, 0xbfbfe778, 0x2832aec5, 0xbfbfe874, 0x45f849ec, 0x2832ae2c, 0x41ed, 0x2833a150, 0x809817c, 0xbfbfe808, 0x2832b236, 0xbfbfe830, 0xbfbfe7a0, 0x8000, 0x2832b1d0, 0x0, 0x0, 0x0, 0x0, 0x5b, 0x12b197, 0x1d41ed, 0x3ed, 0x50, 0x4ab48d, 0x45f877e2, 0x0, 0x45f849ec, 0x0, 0x45f849ec, 0x0, 0x600, 0x8134c08, 0x4, 0x8134c08, 0x1000, 0x8134000, 0xbfbfe818, 0x284732ae, 0x80a6018, 0x8, 0xbfbfe828, 0x28473259, 0x81349a8, 0x2833a150, 0x8134c09, 0x28474f99, 0x28476470, 0x81347f8, 0xbfbfe858, 0x284733e1, 0x80a6018, 0x81349bc, 0xbfbfe894, 0x284733b9, 0x8134990, 0x80a6018, 0x1e, 0x28327688, 0x1, 0x18, 0xbfbfe868, 0x28474f98, 0x28476470, 0x2833a150, 0xbfbfe898, 0x283283c1, 0x8134c18, 0xbfbfeafc, 0x809817c, 0x2832815d, 0x8134f40, 0x48, 0x8134f3b, 0x10, 0x50415448, 0x4, 0x8134f40, 0x8134d30, 0x2847b178, 0x809817c, 0xbfbfe8c8, 0x2847abef, 0x8134c18, 0x8134f38, 0x8134f40, 0x2847aba0, 0x8134da8, 0x8091f20, 0xbfbfedf8, 0x8134c18, 0x8134c10, 0x81260e4, 0xbfbfe938, 0x8067cc1, 0x80a6018, 0xbfbfe94c, 0x8134f38, 0x2847aa48, 0x2847b020, 0xa, 0xbfbfe908, 0x2847aa09, 0x81260b0, 0x2847ae41, 0x8134580, 0x8134c10, 0x1, 0x809817c, 0xbfbfe928, 0x8067fd4, 0x81341b0, 0x2847b080, 0x8134c10, 0x0, 0x0, 0x0, 0xbfbfe968, 0x806851e, 0x8091f20, 0x1, 0xbfbfe968, 0x8068550, 0x2847b020, 0xbfbfeac0, 0x8134c10, 0x81260e4, 0x80a6018, 0x0, 0x0, 0x8134c10, 0x2847b020, 0x2847b080, 0xbfbfe998, 0x80685e4, 0x81260c0, 0xbfbfeac0, 0x81341b0, 0x8069823, 0x80a6018, 0x80b3ea3, 0x80b3ea8, 0x0, 0x0, 0x80f34d8, 0xbfbfe9d8, 0x807c264, 0x0, 0xbfbfeac0, 0x81341b0, 0xbfbfe9d0, 0x0, 0x8095300, 0x0, 0x0, 0x0, 0x80a6018, 0x8122ed3, 0x0, 0x80b3ea8, 0x80a7df8, 0xbfbfea48, 0x80676a0, 0xbfbfeac0, 0x80f35e8, 0x80b3e98, 0x1, 0x8095330, 0xbfbfeafc, 0xbfbfea18, 0x8067ee2, 0x8122e98, 0x8094196, 0xa, 0x28327436, 0x1, 0x80b4720, 0xbfbfea48, 0x80799c4...} #6 0x0806c478 in main (argc=1, argv=0xbfbfebec) at main.c:623 c = 0 '\0' configtestonly = 0 confname = 0x809184c "etc/apache2/httpd.conf" def_server_root = 0x8091863 "/usr/local" temp_error_log = 0x0 process = (process_rec *) 0x80a4090 server_conf = (server_rec *) 0x80a7df8 pglobal = (apr_pool_t *) 0x80a4018 pconf = (apr_pool_t *) 0x80a6018 plog = (apr_pool_t *) 0x80d2018 ptemp = (apr_pool_t *) 0x80f1018 pcommands = (apr_pool_t *) 0x80a8018 opt = (apr_getopt_t *) 0x80a80b0 rv = 70014 mod = (module **) 0x809801c optarg = 0x2809e9a1 "\215e▒[\211▒^_▒▒▒\214▒▒▒▒▒\211▒U\211▒WVS\203▒8▒" signal_server = (apr_OFN_ap_signal_server_t *) 0 (gdb) >How-To-Repeat: Install ports www/apache20 and lang/php5, run apache server, run "apachectl restart" >Fix: Only workaround is known: define ServerName in httpd.conf >Release-Note: >Audit-Trail: >Unformatted: