Some of the computers with on-board video handle certain things
in BIOS ROM routines, and these can cause upsets to the RT
environment on some machines. Sometimes you can turn these
things off, or set them to be done by Linux-level software
rather than hidden features, by turning down
Kenneth Lerman wrote:
The suggestion was made that arp or some other ethernet related protocol
might run every ten seconds. Disabling ethernet in the bios might be
*causing* the problem if all of the protocols are not disabled in software.
I sure don't know what would happen if something
Is there any benefit to be found with the real time kernel by disabling apm
or other features with the kernel parameters?
For example acpi=off apm=off etc?
adding these two to the line that starts with 'kernel ...' in GRUB
doesn't cure the problem.
I will try a PATA hdd today and maybe
Anders:
I hesitate to throw what may be just another red herring into the
discussion, but there are a number of 600-second defaults floating
around Linux, and it is possible you're getting tripped up by one of
them rather than by some clock problem.
For example, by default, the stock Ubuntu
Kent A. Reed wrote:
Anders:
I hesitate to throw what may be just another red herring into the
discussion, but there are a number of 600-second defaults floating
around Linux, and it is possible you're getting tripped up by one of
them rather than by some clock problem.
For example, by
On Sun, May 04, 2008 at 06:10:08PM -0400, Kenneth Lerman wrote:
Googling: pit clocksource had been installed
Got me to: http://lists.opensuse.org/opensuse-bugs/2008-01/msg00541.html
It appears from the above that you may be able to choose your clock. Choose
wisely.
Regardless of what
@lists.sourceforge.net
Sent: Monday, May 05, 2008 1:59 PM
Subject: Re: [Emc-users] 155 ms real-time delay every 10 minutes?
I think this has been reported on the RTAI mailing list some while ago,
there are machines where the TSC is not the most reliable source.
Try looking at rtai_calibrate
Hi All,
I have been trying to track down a 155ms real-time delay that occurs
every 10 minutes.
This is on an Intel motherboard and 2.x GHz celeron processor.
With a PATA hdd and through the parallel port it has been running a
stepper machine for some time without problems.(Ubuntu 6.06 and
I forgot some things in my description:
- The delay is not affected by cpu load. I've run glxgears and some
filters in GIMP which put the cpu load firmly at 100% and that doesn't
affect the rt delay. It's still fairly normal in between, and then there
are the 155ms delays every 10 minutes.
-
-ISO-SEVO
203-426-7166
- Original Message -
From: Anders Wallin [EMAIL PROTECTED]
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Sunday, May 04, 2008 5:10 PM
Subject: Re: [Emc-users] 155 ms real-time delay every 10 minutes?
I forgot some things in my description
PROTECTED]
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Sent: Sunday, May 04, 2008 5:10 PM
Subject: Re: [Emc-users] 155 ms real-time delay every 10 minutes?
I forgot some things in my description:
- The delay is not affected by cpu load. I've run glxgears and some
filters
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