Erwin Rol wrote:
>
> Hello all,
>
> after searcing the XFree 4.0.1 sources i found the following piece of
> code in /xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_video.c
> (and simmulair for other OS's)
> When i understand the working of RTAI(and RTLinux) correct the direct
> cli/sti functions are offlimit
> for anything but the actual RT-code. Did anybody ran into problems with
> XFree 4.0.1 on RT-Linux ?
> I will try to recompile the server with soft cli/sti and see if that
> works.(i compiled it first
> on a normal jkernel and that ran OK (appart from the high latency) and i
> compiled it on a RT-kernel
> and than it just crashed my machine, when using RT-tasks. If i get it
> right it will mean one needs to make RT-Linux XFree-4.0.1 versions ,
> which would suck :-/ Are there simulair problems with XFree 3.XXX ?
This problem is well known, it was posted to this list by Daniele
Danlugli 3 years ago, at the least. Someone rumored about advising XFree
people to avoid such a practice but the issue seems to have not been
pursued, or he/she was not empowerd to have it done by XFree people.
Ciao, Paolo.
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