Hi Laszlo,

if you are running any RTAI but the latest vulcano CVS, there is an
issue with memory > 1 GB. I bet that is the problem you are seeing.
Try booting the machine with mem=900M, or try to upgrade RTAI to vulcano
CVS (or 3.6.1 next week? when it will be released).

Regards,
Alex

On Tue, 2008-05-13 at 18:30 +0200, Snieder wrote:
> Hi All,
> 
> Alex,
> >can you give a bit more info about your setup?
> >put the kernel config on pastebin.ca
> >can you do the same for lspci -vv, uname -a, cat /proc/cpuinfo, cat
> >/proc/meminfo
> 
> You can find the info You've requested on this link:
> http://www.pastebin.ca/1016969
> 
> Jeff,
> >Does the problem exist after running the rtai testsuite (e.g.,
> >test/kern/latency)?
> >
> >Does the problem exist when using a stock configuration that does not
> >communicate with hardware (e.g., sim/tkemc.ini)?
> >
> >Have you made any modifications to the emc 2.2.5 source code, or did
> >you compile it unchanged?
> >
> >Do you have more than 1GB of RAM?
> 
> Yes, the problem exists when I run the testsuite/latency. On a sidenote, the
> latency test runs ok, but the first two columns only contains only zeroes
> and there is an overflow in the last one. I didn't pay much attention to
> this, as I hope, the problem is not related to this.
> 
> No, I didn't modify the emc source code and I have 2 GB of ram. This morning
> I modified the emc script a bit, by commenting out the Cleanup line. This
> way Linux stays runing. After closing and rerunning emc it asks if I wanted
> to restart emc. Answering with Yes, it runs without any problems.
> 
> Stuart,
> >   On my box I saw xorg was using 98% of the CPU. I increased video
> >memory to 128 mb and the usage went down to 70%. I increased the video.....
> 
> While the cnc is working and I'm using xp with vmware, runing solidedge, the
> cpu load does not exceed 60%:::)
> 
> Laszlo
> 
> 
> 
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