Date: Mon, 31 Oct 2016 19:40:51 -0400
From: Gene Heskett < ghesk...@shentel.net mailto:ghesk...@shentel.net >
Subject: Re: [Emc-users] Raspi, 7i90HD and such stuff...
To: emc-users@lists.sourceforge.net mailto:emc-users@lists.sourceforge.net
Message-ID: < 201610311940.51328.ghesk...@shentel.net
mailto:201610311940.51328.ghesk...@shentel.net >
Content-Type: Text/Plain; charset="windows-1252"

On Monday 31 October 2016 18:55:32 W. Martinjak wrote:

> Seemed to do ok. And linuxcnc ran a g76 routine in the sim just fine.

> But I am concerned, this r-pi 3 isn't stable since putting it on the RT
> core, I have had 4 crashes already.

Dear Gene -

I'm on a similar adventure with the PI - (and struggling with information out
there) -

I had random crahses on my PI3 with the RT kernel - this post seemed to

give a solution which worked for me
https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=159170
https://www.raspberrypi.org/forums/viewtopic.php?f=29&t=159170

Add to the cmdline.txt in /boot

dwc_otg.fiq_fsm_enable=0 dwc_otg.fiq_enable=0 dwc_otg.nak_holdoff=0

It appears that what did the trick has been the order of the fiq disable
commands. dwc_otg.fiq_fsm_enable=0 must be set *before* dwc_otg.fiq_enable=0.
The other way around it finds fiq_fsm_enable true with fiq_enable false, and it
forces fiq_enable true.n short - need to modify the boot options to remove

Hope this helps - keen to hear how you get on.

Matthew
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