Re: sctp panic
From: richard -rw- weinberger <hidden>
Date: 2011-03-17 11:20:22
On Thu, Mar 17, 2011 at 11:49 AM, walter schloegl [off-list ref] wrote:
-------- Original-Nachricht --------quoted
Datum: Thu, 17 Mar 2011 08:56:47 +0100 Von: richard -rw- weinberger [off-list ref] An: sctp@muskelshirt.de CC: linux-kernel@vger.kernel.org Betreff: Re: sctp panicquoted
On Thu, Mar 17, 2011 at 8:43 AM, [off-list ref] wrote:quoted
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) neccessaryCan you show us the panic message and your C prorgam? This would help reproducing the panic...The C-Code is: #include <sys/socket.h> #include <netinet/in.h> #include <netdb.h> #include <stdio.h> #include <errno.h> #include <unistd.h> #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.quoted
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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"inquoted
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