Re: rtlinux and X, possible kernel problems ?

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 12 Feb 1998 10:45:19 +0000 (GMT)


> Daniele Lugli first spotted a problem with interupt handling in RT tasks under X
> and did some digging. The X server is apparently doing global cli/sti's.

It does. It occasionally has too.

> The reason I've forwarded this to the kernel list is that my personal experience
> has been that Linux has always been much more stable not running X.
> I suspect that this may be causing problems for things other than RT-Linux

The way its done is ok normally. I guess you need to make X over Linux/RT call the
rtlinux kernel to handle it. Note X _has_ to do those global cli/sti's to meet hardware
needs

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