On Friday 22 May 2009 12:20, Gianluca Medini Eurosoft Srl wrote: > I've the module rtai working but if and only if I avoid to call spin_lock > and spin_unlock; perhaps I'm missing an rtai module ? No, you're not missing a special module - you cannot use locking in your realtime system! You need other techniques! A lot of kernel functionality, actually ALL kernel functionality that relies on locking, is not available when inside an RTAI loop.
- Richard > Regards > > > > ----- Original Message ----- > From: "Richard Hacker (MSc Eng)" <[email protected]> > To: <[email protected]> > Cc: "Gianluca Medini Eurosoft Srl" <[email protected]> > Sent: Friday, May 22, 2009 8:50 AM > Subject: Re: [etherlab-users] RTai sample system frooze > > On Thursday 21 May 2009 18:58, Gianluca Medini Eurosoft Srl wrote: > > Hy all. > > I'm a new user of etherlab and I've tested successfully the mini kernel > > space example. I've made minimal modification to match my hardware (a > > simple EL 2002 ouput terminal) and everithing works fine. I'm using a > > 2.6.19.7 kernel. > > Tried to make the same with RTAI 3.5, problems. > > If I comment don't call task_make_periodic no problem (any problem listed > > from dmesg) , but if called the system hangs. Any idea ? > > Have you run the examples/testsuite in the RTAI package, most notably > /usr/realtime/testsuite/kern/latency/? > > - Richard > > > Thank in advance > > Gianluca Medini -- ------------------------------------------------------------------------ Richard Hacker Ingenieurgemeinschaft IgH Gesellschaft für Ingenieurleistungen mbH Heinz-Baecker-Str. 34 D-45356 Essen Tel.: +49 201 / 360-14-16 Fax.: +49 201 / 360-14-14 Mobil: +49 175 6822089 E-mail: [email protected] ------------------------------------------------------------------------ _______________________________________________ etherlab-users mailing list [email protected] http://lists.etherlab.org/mailman/listinfo/etherlab-users
