From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <21969019.1184569651818.JavaMail.ngmail@domain.hid> Date: Mon, 16 Jul 2007 09:07:31 +0200 (CEST) From: "M. Koehrer" In-Reply-To: <46973753.6010206@domain.hid> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable References: <46973753.6010206@domain.hid> <4694ED98.6000000@domain.hid> <46937E70.10903@domain.hid> <469345EB.6060302@domain.hid> <22554361.1184054457326.JavaMail.ngmail@domain.hid> <2026261.1184070574283.JavaMail.ngmail@domain.hid> <1982070.1184078400928.JavaMail.ngmail@domain.hid> <4693A702.1010604@domain.hid> <913919.1184311634860.JavaMail.ngmail@domain.hid> Subject: Re: [Xenomai-help] Sporadic PC freeze after rt_task_start 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 Hi Jan, I left my PC running the whole weekend using the kernel command line parame= ter "nmi_watchdog=3D1". However, using this option, the PC did not freeze at all... This is really ugly. The kernel configuration was the same I mailed a couple of days ago. Also, I tried (a couple of hours) to run with Xeno debugging (Nucleus debug= ging and Watchdog support) enabled. However, this did not lead to a freeze = either. This seems to be a really nasty timing issue... Any ideas on how to continue are welcome. Regards Mathias > > I did another test to identify the freeze. I have plugged in a POST-COD= E > 80 PCI board into the PC > > and instrumented the code to write to port 80 to find out where the fre= eze > actually happens. > > It seems not to return for rt_task_start as the last written POST code > (see source code below) is 0x30. > > I hope to find a time slot to modify the kernel to do another test. >=20 > Again: Please consider NMI watchdog and nucleus debugging support for > those tests as well. Maybe (I dare to say: likely on SMP) they catch > where the CPUs hang around instead of doing their work. >=20 > > The bad thing is that it takes really long to get the freeze (up to a > couple of hours). >=20 > Your effort is appreciated even more! >=20 > Jan >=20 >=20 --=20 Mathias Koehrer mathias_koehrer@domain.hid Viel oder wenig? Schnell oder langsam? Unbegrenzt surfen + telefonieren ohne Zeit- und Volumenbegrenzung? DAS TOP ANGEBOT JETZT bei Arcor: g=FCnsti= g und schnell mit DSL - das All-Inclusive-Paket f=FCr clevere Doppel-Sparer, nur 39,85 =80 inkl. DSL- und ISDN-Grundgeb=FChr! http://www.arcor.de/rd/emf-dsl-2