Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753871Ab1CQKtM (ORCPT ); Thu, 17 Mar 2011 06:49:12 -0400 Received: from mailout-de.gmx.net ([213.165.64.23]:59590 "HELO mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752881Ab1CQKtJ (ORCPT ); Thu, 17 Mar 2011 06:49:09 -0400 Cc: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Date: Thu, 17 Mar 2011 11:49:03 +0100 From: "walter schloegl" In-Reply-To: Message-ID: <20110317104903.153050@gmx.net> MIME-Version: 1.0 References: <20110317074356.231320@gmx.net> Subject: Re: sctp panic To: richard -rw- weinberger X-Authenticated: #113584424 X-Flags: 0001 X-Mailer: WWW-Mail 6100 (Global Message Exchange) X-Priority: 3 X-Provags-ID: V01U2FsdGVkX1+6K1tbylS6MxgFQc0nzsDuy5nSM4kfCde1NL5J3A FaLYXD6cOkpfiz0EAZsr7uRxAJURUbh9t3xg== Content-Transfer-Encoding: 8bit X-GMX-UID: LNCzfP0TIydmFw1MsWFrg0hSa2FkZtXe Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5311 Lines: 152 -------- 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 -- 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/