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Ubuntu Bugs steppgen in 10.04

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10 Mar 2011 12:50 #7681 by radekB
Ubuntu Bugs steppgen in 10.04 was created by radekB
I have two years of running configuration, a machine with stepper motors + mesa 5i20. After migrating from 8.04 to 10.04 and in my relatively low-speed system reports the joint folloving error.
Please also try to configure "HM2-Stepper '..
Get to know ..

RADEK

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10 Mar 2011 12:55 #7682 by BigJohnT
Replied by BigJohnT on topic Re:Ubuntu Bugs steppgen in 10.04
How did you upgrade?

John

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10 Mar 2011 13:10 #7684 by radekB
Replied by radekB on topic Re:Ubuntu Bugs steppgen in 10.04
New installation ubuntu 10.04&EMC2.

RADEK

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10 Mar 2011 13:44 #7685 by radekB
Replied by radekB on topic Re:Ubuntu Bugs steppgen in 10.04
Every start of the EMC is reported:

[ 5865.413636] RTAPI: ERROR: Unexpected realtime delay on task 1
[ 5865.413642] This Message will only display once per session.
[ 5865.413648] Run the Latency Test and resolve before continuing.
[ 5865.908219] 990: ERROR: Unexpected realtime delay: check dmesg for details.


Ubuntu 10.4 behaves differently than 8.04 ...

RADEK

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10 Mar 2011 15:29 #7688 by BigJohnT
Replied by BigJohnT on topic Re:Ubuntu Bugs steppgen in 10.04
Did you create a new config or upgrade your 8.04 config as shown here? Assuming your old config was a 2.3.x config.

wiki.linuxcnc.org/cgi-bin/emcinfo.pl?UpdatingTo2.4

Did you check the latency on that computer after installing 10.04? I've seen some reports of 10.04 not running as well as 8.04 on older computers...

John

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10 Mar 2011 17:06 #7692 by radekB
Replied by radekB on topic Re:Ubuntu Bugs steppgen in 10.04
This not the correct solution to this problem.
RADEK

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10 Mar 2011 17:09 - 10 Mar 2011 17:11 #7693 by radekB
Replied by radekB on topic Re:Ubuntu Bugs steppgen in 10.04
Please test the following two configurations.
Problem is basetread + mesa stepgen..... [no basethread, no following error problem]

thanks

Radek

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Last edit: 10 Mar 2011 17:11 by radekB.

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10 Mar 2011 17:36 #7695 by BigJohnT
Replied by BigJohnT on topic Re:Ubuntu Bugs steppgen in 10.04
I have seen problems when people try and run a base thread with hostmot2.

Why do you need a base thread with hardware step generation?

John

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10 Mar 2011 18:11 - 10 Mar 2011 18:12 #7700 by BigJohnT
Replied by BigJohnT on topic Re:Ubuntu Bugs steppgen in 10.04
From a question posted on the IRC this morning.

[11:50] <pcw_home> I don't think there's ever been a confirmed problem except in this circumstance:
[11:50] <pcw_home> 1. You are using the hardware stepgen
[11:50] <pcw_home> 2, And you have a base thread specified but unused


John
Last edit: 10 Mar 2011 18:12 by BigJohnT.

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11 Mar 2011 00:40 #7705 by radekB
Replied by radekB on topic Re:Ubuntu Bugs steppgen in 10.04
OK, thread base + HW stepgen I not use. (conflict with hosmot firmware)

But I tested the hardware stepgen EMC version 2.4.6 is OK.
The EMC version 2.5.0 is a bug. Again folloving error.

Radek

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