Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753974Ab1CQLUW (ORCPT ); Thu, 17 Mar 2011 07:20:22 -0400 Received: from mail-qy0-f174.google.com ([209.85.216.174]:46802 "EHLO mail-qy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751846Ab1CQLUT convert rfc822-to-8bit (ORCPT ); Thu, 17 Mar 2011 07:20:19 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=tntmFARyj5LTOKTw1QLNGbB4VZHxj2LhAvu3nHOa4+SkTlam3j4oFGipIZQmO1COop bvTCaYxQadR5f7H17xrWG3C3VJQ1oOA2ZgSQb7Cvj7pz73Lam0JTr6spRl5VdtFiblu8 3PVOCcvxGnnUxGC6ibtYMrY1CaKb7PIDaRXog= MIME-Version: 1.0 In-Reply-To: <20110317104903.153050@gmx.net> References: <20110317074356.231320@gmx.net> <20110317104903.153050@gmx.net> Date: Thu, 17 Mar 2011 12:20:18 +0100 Message-ID: Subject: Re: sctp panic From: richard -rw- weinberger To: walter schloegl Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5384 Lines: 160 On Thu, Mar 17, 2011 at 11:49 AM, walter schloegl wrote: > > -------- Original-Nachricht -------- >> Datum: Thu, 17 Mar 2011 08:56:47 +0100 >> Von: richard -rw- weinberger >> An: sctp@muskelshirt.de >> CC: linux-kernel@vger.kernel.org >> Betreff: Re: sctp panic > >> On Thu, Mar 17, 2011 at 8:43 AM, ? wrote: >> > Hi >> > >> > when doing the actions below I get a panic. >> > >> > - echo 1 > /proc/sys/net/sctp/addip_enable >> > - In a C-Programm >> > ? ?- socket(AF_INET,SOCK_STREAM,IPPROTO_SCTP); >> > ? ?- connect(....) ? ? (with correct filled parameters) >> > >> > Its no process (waiting in accept) neccessary >> >> Can you show us the panic message and your C prorgam? >> This would help reproducing the panic... > > The C-Code is: > > #include > #include > #include > #include > #include > #include > #include "sctp.h" > > > int > main(int ac,char **av) > { > > ?int s; > ?char *remhost; > ?int port; > ?struct hostent *hp; > ?struct sockaddr_in server; > > ?if (ac != 3) { > ? ? ?printf("usage: %s ip-addr port\n",av[0]); > ? ? ?exit(1); > ?} > > ?remhost = av[1]; > ?port = atoi(av[2]); > > > ?server.sin_port = htons(port); > ?server.sin_family = AF_INET; > ?hp = gethostbyname(remhost); > ?if (hp == 0) ?{ > ? ? fprintf(stderr,"unknown host %s\n",remhost); > ? ? exit(1); > ?} > ?memcpy((char *)&server.sin_addr,(char *)hp->h_addr,hp->h_length); > > ?if ((s = socket(AF_INET,SOCK_STREAM,IPPROTO_SCTP)) < 0) ?{ > ? ? ?fprintf(stderr,"socket IPPROTO_SCTP proc %d ?failed errno %d\n",getpid(),errno); > ? ? ?close(s); > ? ? ?exit(1); > ?} > > ?if (connect(s,(struct sockaddr *)&server,sizeof server) < 0) ? ? ? ?{ > ? ? ? ? fprintf(stderr,"connect failed errno %d\n",errno); > ? ? ? ? close(s); > ? ? ? ? exit(1); > ?} > } > > The crash says: > > crash> bt > PID: 14646 ?TASK: ffff8801f40c7560 ?CPU: 9 ? COMMAND: "x" > ?#0 [ffff8801f6f5f6f0] machine_kexec at ffffffff8103697b > ?#1 [ffff8801f6f5f750] crash_kexec at ffffffff810b9078 > ?#2 [ffff8801f6f5f820] oops_end at ffffffff814cc900 > ?#3 [ffff8801f6f5f850] die at ffffffff8101733b > ?#4 [ffff8801f6f5f880] do_trap at ffffffff814cc1d4 > ?#5 [ffff8801f6f5f8e0] do_invalid_op at ffffffff81014ee5 > ?#6 [ffff8801f6f5f980] invalid_op at ffffffff81013f5b > ? ?[exception RIP: skb_over_panic+93] > ? ?RIP: ffffffff81404bdd ?RSP: ffff8801f6f5fa38 ?RFLAGS: 00010296 > ? ?RAX: 0000000000000083 ?RBX: 0000000000000040 ?RCX: 00000000000013f6 > ? ?RDX: 0000000000000000 ?RSI: 0000000000000046 ?RDI: 0000000000000246 > ? ?RBP: ffff8801f6f5fa58 ? R8: ffffffff818a3da0 ? R9: 0000000000000000 > ? ?R10: 0000000000000001 ?R11: 0000000000000000 ?R12: ffff8801f4e11000 > ? ?R13: 0000000000000004 ?R14: 000000000000003e ?R15: 0000000000000001 > ? ?ORIG_RAX: ffffffffffffffff ?CS: 0010 ?SS: 0018 > ?#7 [ffff8801f6f5fa60] skb_put at ffffffff81405c1c > ?#8 [ffff8801f6f5fa80] sctp_addto_chunk at ffffffffa0503c23 > ?#9 [ffff8801f6f5fad0] sctp_make_init at ffffffffa0506705 > #10 [ffff8801f6f5fba0] sctp_sf_do_prm_asoc at ffffffffa04f81d4 > #11 [ffff8801f6f5fbd0] sctp_do_sm at ffffffffa04fd381 > #12 [ffff8801f6f5fd60] sctp_primitive_ASSOCIATE at ffffffffa0513daf > #13 [ffff8801f6f5fd80] __sctp_connect at ffffffffa0510f09 > #14 [ffff8801f6f5fe50] sctp_connect at ffffffffa0511248 > #15 [ffff8801f6f5fe80] inet_dgram_connect at ffffffff81471b6c > #16 [ffff8801f6f5feb0] sys_connect at ffffffff813ff747 > #17 [ffff8801f6f5ff80] system_call_fastpath at ffffffff81013172 > ? ?RIP: 0000003015ee2150 ?RSP: 00007fffea7bdce8 ?RFLAGS: 00010206 > ? ?RAX: 000000000000002a ?RBX: ffffffff81013172 ?RCX: 0000000000000000 > ? ?RDX: 0000000000000010 ?RSI: 00007fffea7bdd00 ?RDI: 0000000000000003 > ? ?RBP: 00007fffea7bdd40 ? R8: 0000000000759020 ? R9: ff00000000000000 > ? ?R10: 00007fffea7bda70 ?R11: 0000000000000246 ?R12: 0000000000000000 > ? ?R13: 00007fffea7bde20 ?R14: 00000000004006e0 ?R15: 0000000000000000 > ? ?ORIG_RAX: 000000000000002a ?CS: 0033 ?SS: 002b > > > One more Info: > When calling my programm with 127.0.0.1 as remote ip-addr I get a: > connect failed errno 111 > > When calling it with a "non local" address (and also no "accept process" running) I get the Panic. > > >> >> > br >> > walter >> > -- >> > GMX DSL Doppel-Flat ab 19,99 Euro/mtl.! Jetzt mit >> > gratis Handy-Flat! http://portal.gmx.net/de/go/dsl >> > -- >> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" >> in >> > the body of a message to majordomo@vger.kernel.org >> > More majordomo info at ?http://vger.kernel.org/majordomo-info.html >> > Please read the FAQ at ?http://www.tux.org/lkml/ >> > >> >> -- >> Thanks, >> //richard >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at ?http://vger.kernel.org/majordomo-info.html >> Please read the FAQ at ?http://www.tux.org/lkml/ > > -- > NEU: FreePhone - kostenlos mobil telefonieren und surfen! > Jetzt informieren: http://www.gmx.net/de/go/freephone > CC'ing netdev -- Thanks, //richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/