Re: Success at Last!!!

[John Murphy <john-at-wyosip.com>]

I was having problems with EMC rebooting my system from either
tkEmc or xemc when I initiated any type of motion command, etc.
It would do this consistently for 10-20 attempts, then work fine for
a session, with no apparent pattern or reason.

I'm a longtime slackware and debian user, but am running Redhat since
it's
quite a bit easier to get emc running on redhat (Perhaps we could
implement
the gnu autoconf/configure for EMC, something I'll look into when I have
more time).  I'd heard of problems with some of the older redhat X
servers.

Anyway, I found that if I start my Xserver as a regular user (a good
practice
anyway) and su within an xterm to start EMC, my system NEVER
hangs/reboots.
Running the X server as root, then starting EMC will cause a reboot on
my
system 95% of the time.

Does everyone else have to run emc as root?  I'm guessing so based on
the
rtl stuff, but I've not looked at it in detail.

Probably not your problem, but something that may help someone else.

murph

John Ross wrote:
> 
>     I finally have EMC running and Linux isn't crashing or locking up on my
> machine.  It was getting very frustrating to be 10 min. into machining a
> part and have Linux freeze up or the XServer unload on its own.  I tried
> trading out the Video card and the DRAM. But still had lockups. I switched
> from xemc to TkEmc and the lockups got worse and I started getting Signal 11
> errors.  On a lark I tried disabling all the internal and external caching
> in the Bios, and changed the refresh timing by disabling the  AUTO DETECT
> and setting the speed fixed at NORMAL.  The machine ran for close to an hour
> last night with out a single hiccup.  The only draw back is the machine is
> running much slower with the all the cache disabled.   So now my step is to
> start turning on some of the cache and see if it's still stable.
> 
>    John Ross