- From: Calin A. Culianu <calin_at_ajvar.org>
- Date: Fri, 16 Aug 2002 16:09:43 -0400 (EDT)
Really? I didn't realize that. I never got too into LXRT but I always assumed you could make system calls (that is, I thought the switch to kernel mode by issuing int 0x80 on x86 would be ok.. but does that somehow invoke the linux scheduler or something??). So why do system calls cause problems for RTAI when using LXRT? I am not as intimate with the kernel workings as you guys so I was just wondering.. thanks. :) -Calin On Fri, 16 Aug 2002, David Schleef wrote: > On Fri, Aug 16, 2002 at 03:56:58PM -0400, Calin A. Culianu wrote: > > > > > > Really? I feel dumb then don't I :(? > > > > What if all you do is basic comedi_data_read() stuff that doesn't use > > interrupts or anything.. just talking to IO ports? > > Making system calls involves a bunch of stuff that causes conflicts > between Linux and RTAI. > > > > dave... > >
Received on 2002-08-16Z19:09:43