From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: Preemptive Kernel and MPC8xx ??? From: Jaap-Jan Boor To: Steven Scholz Cc: Marius Groeger , "linuxppc-embedded@lists.linuxppc.org" In-Reply-To: <3FC30F17.1070904@imc-berlin.de> References: <3FC0A1D3.70706@imc-berlin.de> <3FC30F17.1070904@imc-berlin.de> Content-Type: text/plain; charset=UTF-8 Message-Id: <1069863564.1263.1.camel@linpc003.aimsys.nl> Mime-Version: 1.0 Date: Wed, 26 Nov 2003 17:19:24 +0100 Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: On Tue, 2003-11-25 at 09:13, Steven Scholz wrote: > Hi, > > > On Mon, 24 Nov 2003, Jaap-Jan Boor wrote: > > > >>Yes I do on 2.4.20 and 2.4.22 from kernel.org. So far all seems > >>to work but didn't do any measurements on it. > >>(I both use the preempt and low-latency patches) > Have you writting your own device drivers? > How did you make them preemptable? I didn't... I still assume the kernel will lock e.g. the same SIU irq > > Marius Groeger wrote: > > AFAIK, you can pretty much drop the low-latency patch in favor of > > using the lock-breaking patch. It is also available from Robert Love > > at the cited home page. > How about homemade device drivers when using the lock-breaking patch? > > Thanks! > > -- > Steven Scholz > > imc Measurement & Control imc Meßsysteme GmbH > Voltastr. 5 Voltastr. 5 > 13355 Berlin 13355 Berlin > Germany Deutschland > fon: +49 30 467090-0 Tel: 030 / 467090-0 > fax: +49 30 4631576 fax: 030 / 4631576 > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/