From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <31078593.1166623877982.JavaMail.ngmail@domain.hid> Date: Wed, 20 Dec 2006 15:11:17 +0100 (CET) From: "M. Koehrer" In-Reply-To: <45894179.8060805@domain.hid> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_43953_1818513.1166623877980" References: <45894179.8060805@domain.hid> <4587E404.2050101@domain.hid> <4587B287.2060603@domain.hid> <358035.1166518774710.JavaMail.ngmail@domain.hid> <4587A2D4.3020102@domain.hid> <45879DE5.5080507@domain.hid> <7145056.1166514841031.JavaMail.ngmail@domain.hid> <4970132.1166516081275.JavaMail.ngmail@domain.hid> <2579704.1166520394117.JavaMail.ngmail@domain.hid> <4383100.1166529856857.JavaMail.ngmail@domain.hid> <13529671.1166621136153.JavaMail.ngmail@domain.hid> Subject: [Xenomai-help] Aw: Re: A fairly small rtnet/Xenomai application that freezes the PC List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: jan.kiszka@domain.hid, mathias_koehrer@domain.hid Cc: xenomai@xenomai.org ------=_Part_43953_1818513.1166623877980 Content-Type: multipart/alternative; boundary="----=_Part_43952_23807843.1166623877980" ------=_Part_43952_23807843.1166623877980 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi Jan, enclosed is the ethereal dump file. Unfortunately I do not have a slow machine... (We try to get the fastest ma= chines running...). Thanks for checking the application. Mathias > > after a long debug-reboot-try-again-session I was able to reduce the > problem I had > > to a very short application that leads to a complete system freeze on a > 2.6.19.1 kernel. > > As with my PC I am not able to run the NMI stuff within Xenomai, I forw= ard > the application to you > > and the list. Perhaps somebody can try out the enclosed application wit= h > the latest Xenomai version > > on 2.6.19.1. >=20 > Thanks for the test case, I will give this a try ASAP. >=20 > > Please adjust the IP settings in the C file and in the xenorun script t= o > your setup. > > It is sufficient to send out UDP frames, if the remote device does not > answer this does not hurt. > > However the remote device should listen on a specified port to avoid IC= MP > complains about > > no-opened UDP ports... > > Using Ethereal I monitored the traffic. > > Here is the summary of it: > > ARP request/response (from the xenorun script) > > ARP request/response (from the applicaion) > > UDP message to port 18765 (no answer) > > 2 seconds later: UDP message to port 18765 (no answer) > > 2+5=3D7 seconds later: ARP request/response (from the application) > > 2 seconds later: UDP message to port 18765 > > Here the system freezes. I do not see the message "Step A". >=20 > Could you set me the Ethereal dump for reference? Just in case the test > does not kick immediately for me and I need to check the event flow. >=20 > >=20 > > One important piece is the system() call out of the realtime applicatio= n > to do a rtroute. > > When I remove this call, there is no error... > >=20 > >=20 > > I am using Xenomai SVN #1969 and the included 2.6.19.1 patch. Pentium 4 > UP. >=20 > Do you have a different (slower) execution platform at hand to check if > the CPU speed as influence on the lock-up? I hope it is not the case - > makes tracking easier. But it wouldn't be the first time. >=20 > >=20 > > Any feedback on this is highly welcome! > >=20 >=20 > You will get it. >=20 > Thanks again, > Jan >=20 >=20 --=20 Mathias Koehrer mathias_koehrer@domain.hid Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren ohne Zeit- und Volumenbegrenzung? 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DSL- und ISDN-Grundgeb=FChr! http://www.arcor.de/rd/emf-dsl-2 ------=_Part_43952_23807843.1166623877980-- ------=_Part_43953_1818513.1166623877980 Content-Type: application/octet-stream Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename=rtnet_crashtest.tcpdump 1MOyoQIABAAAAAAAAAAAAP//AAABAAAAdzWJRcunCwA8AAAAPAAAAP///////wAwSFr5CwgGAAEI AAYEAAEAMEha+QvAqCjxAAAAAAAAwKgoCwAAAAAAAAAAAAAAAAAAAAAAAHc1iUWkqAsAPAAAADwA AAAAMEha+QsAYDQAMe8IBgABCAAGBAACAGA0ADHvwKgoCwAwSFr5C8CoKPEAAAAAAAAAAAAAAAAA AAAAAAB4NYlFgs8LADwAAAA8AAAA////////ADBIWvkLCAYAAQgABgQAAQAwSFr5C8CoKPEAAAAA AADAqCgLAAAAAAAAAAAAAAAAAAAAAAAAeDWJRU7QCwA8AAAAPAAAAAAwSFr5CwBgNAAx7wgGAAEI AAYEAAIAYDQAMe/AqCgLADBIWvkLwKgo8QAAAAAAAAAAAAAAAAAAAAAAAHk1iUUU5AsAPgAAAD4A AAAAYDQAMe8AMEha+QsIAEUAADAAAEAA/xGpb8CoKPHAqCgLJxBJTQAcvQsAAAAAAAAAAAAAAAAA AAAAAAAAAHs1iUXT5AsAPgAAAD4AAAAAYDQAMe8AMEha+QsIAEUAADAAAUAA/xGpbsCoKPHAqCgL JxBJTQAcvQsAAAAAAAAAAAAAAAAAAAAAAAAAAII1iUXk+QsAPAAAADwAAAD///////8AMEha+QsI BgABCAAGBAABADBIWvkLwKgo8QAAAAAAAMCoKAsAAAAAAAAAAAAAAAAAAAAAAACCNYlF7/oLADwA AAA8AAAAADBIWvkLAGA0ADHvCAYAAQgABgQAAgBgNAAx78CoKAsAMEha+QvAqCjxAAAAAAAAAAAA AAAAAAAAAAAAhDWJRU4jDAA+AAAAPgAAAABgNAAx7wAwSFr5CwgARQAAMAACQAD/EaltwKgo8cCo KAsnEElNABy9CwAAAAAAAAAAAAAAAAAAAAAAAAAA ------=_Part_43953_1818513.1166623877980--