Hi Nicolas,
On 27 Sep 2000, at 10:01, Nicolas FLORIAN wrote:
> Hi !
>
> Since I've installed RTlinux 2.2 on my computer (linux Mandrake 7.0), I
> can't mount my floppy and I can't use it when I'm on the rtl kernel. Is
> it normal? What could I do to solve this problem ?
>
I'm using RTAI (1.3) instead of RTL, and there I had no problems
using my floppy drive.
Investigating the system, I realized, that the interrupt latency time of
my real-time task increased a lot (>10us) doing floppy read/write at
the same time. So I think, it's a good advice *not* to use your floppy
when a real-time task is running.
Perhaps Victor and his RTL-crew knew about this problem and so
they simple block up floppy access during real-time operations.
Greetings
Arne Linder
Dipl.-Ing. Arne Linder
Labor fuer elektrische Maschinen und Antriebe
Fachbereich 13
Bergische Universitaet - Gesamthochschule Wuppertal
D-42097 Wuppertal
e-mail: [EMAIL PROTECTED]
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