7i77 5i25 hm2_pci unloaded

andypugh
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24 Nov 2016 18:46 #83235 by andypugh

Replied by andypugh on topic 7i77 5i25 hm2_pci unloaded

k-1 wrote:

andypugh wrote:
You want the "uspace" version for a preempt-rt kernel.

I have use the step write before ... so now I've linuxcnc - 2.8.0 pre1 ... the same that I use in JA9

That is probably correct. "uspace" is the name for the versions of LinuxCNC from the buildbot that are compiled with
--with-realtime=uspace
Which is what you did.

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bkt
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24 Nov 2016 19:24 - 24 Nov 2016 19:26 #83236 by bkt

Replied by bkt on topic 7i77 5i25 hm2_pci unloaded

andypugh wrote:
That should all work.

It might be that when you run LinuxCNC you are running the old, installed version, not the new one you just compiled.

If you open a terminal window

cd linuxcnc-dev
, ,/scripts/rip-environment
linuxcnc

You should see
> LINUXCNC - 2.8.0~pre1

Yes I compile with uspace option ...

this is that I do and obtain ... the ubuntu 14.04 is a fresh install (yesterday night ...)..

But If try to run:

cd linuxcnc-dev
, ,/scripts/rip-environment
linuxcnc

and try to run latency test for example the response is:

> LINUXCNC - 2.8.0~pre1
> NOTE: Using POSIX non-realtime ..... the latency is 3.000.000 and more ... orrible ...

@PCW I can use somethings more recent of 4.1.5 or is your ultimate test??

Regards
Giorgio

Last edit: 24 Nov 2016 19:26 by bkt.

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andypugh
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24 Nov 2016 19:41 #83237 by andypugh

Replied by andypugh on topic 7i77 5i25 hm2_pci unloaded

I miss-typed:

. ./scripts/rip-environment

What does uname -a say?

Perhaps you need to select your new realtime kernel in the grub menu?

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andypugh
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24 Nov 2016 19:54 #83238 by andypugh

Replied by andypugh on topic 7i77 5i25 hm2_pci unloaded

Did you get the opportunity to see what the name of your new kernel is?

There is a not-very-clever test here:
github.com/LinuxCNC/linuxcnc/blob/9799ec...uspace_common.h#L329

Unless the kernel version (uname -a) actually contains "PREEMPT RT" then the system will use "POSIX non-realtime"

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bkt
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24 Nov 2016 21:54 - 24 Nov 2016 21:56 #83240 by bkt

Replied by bkt on topic 7i77 5i25 hm2_pci unloaded

Not worry i see the miss-type.....
Grub see new rt kernel ubuntu 14 as default......
Normally use uname -r tomorrow try.... yesterday my last post is at 2.0 am..... actually is 11pm....

These step is all right?

these step i rigth?? Ubuntu 14.04 32bit is right?

cd ~
sudo apt-get update
sudo apt-get install build-essential bin86 kernel-package libqt4-dev libncurses5
-dev pkg-config
mkdir rtlinux
cd rtlinux
wget ftp://ftp.kernel.org/pub/linux/kernel/v4.x/linux-4.4.27.tar.xz
wget www.kernel.org/pub/linux/kernel/projects....4.27-rt"x".patch.gz
tar -xpf linux-4.4.27.tar.xz
gunzip patch-4.4.27-rt5.patch.gz
cp patch-4.4.27-rt5.patch linux-4.4.27
cd linux-4.4.27
cat patch-4.4.27-rt5.patch | patch -p1
make xconfig
make
sudo make modules_install
sudo make install


after these:

> git clone git://git.linuxcnc.org/git/linuxcnc.git linuxcnc-dev
> cd linuxcnc-dev/src
> ./autogen.sh
> ./configure --with-realtime=uspace
> make
> sudo make setuid

> source ../scripts/rip-environment
> runtests

Regards
Giorgio

Last edit: 24 Nov 2016 21:56 by bkt.

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bkt
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24 Nov 2016 21:59 #83241 by bkt

Replied by bkt on topic 7i77 5i25 hm2_pci unloaded

Pheraps latency test to 10000000ns is not possible..... sometings is broken....
At start of xconfig i remember not see ceckbox about 32bit only for 64bit..... and i not select it....

Regards
Giogio

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PCW
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24 Nov 2016 22:25 - 24 Nov 2016 22:36 #83244 by PCW

Replied by PCW on topic 7i77 5i25 hm2_pci unloaded

When you run xconfig its required that you select at least 2 items:

1. Is the 32 or 64 bit kernel option

( This must match your base OS. Ubuntu 14.04 is available in both 32 and 64 bit versions so this depends on which version you downloaded and installed )

2. Is the real time option, this is selected in the "processor types and features" section under the
"Preemption model" You must select "Fully Preemptable Kernel (RT)"

Last edit: 24 Nov 2016 22:36 by PCW.

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bkt
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25 Nov 2016 08:03 #83255 by bkt

Replied by bkt on topic 7i77 5i25 hm2_pci unloaded

andypugh wrote:
I miss-typed:

. ./scripts/rip-environment

What does uname -a say?

Perhaps you need to select your new realtime kernel in the grub menu?

uname -a.....Linux k1 4.4.27-rt37 #1 SMP Thu Nov 24 00:36:21 CET 2016 i686 i686 i686 GNU/Linux

so I have make some error in xconfig......

@PCW please te latest kernel that you have install??? i386 or amd64???

regards
Giorgio

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PCW
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25 Nov 2016 12:11 #83264 by PCW

Replied by PCW on topic 7i77 5i25 hm2_pci unloaded

I have installed both, it depends on the Ubuntu 14.04 version
As I said before, Ubuntu 14.04 is available in both 32 and 64 bit versions
when you build a kernel, it needs to match your OS

You can check if your OS is 32 or 64 bit by clicking "System-Settings" and then "Details"

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bkt
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25 Nov 2016 12:23 #83266 by bkt

Replied by bkt on topic 7i77 5i25 hm2_pci unloaded

PCW wrote:
When you run xconfig its required that you select at least 2 items:

1. Is the 32 or 64 bit kernel option

( This must match your base OS. Ubuntu 14.04 is available in both 32 and 64 bit versions so this depends on which version you downloaded and installed )

2. Is the real time option, this is selected in the "processor types and features" section under the
"Preemption model" You must select "Fully Preemptable Kernel (RT)"

At these time try a new installation ubu14.04 kernel 4.1.5 as PCW old post I'm over xconfig .... I select now 64bit (but in xconfig this these time is automatic selected) and fully preemptable kernel...

my processor is Intel® Core™ i3-4160 CPU @ 3.60GHz × 4... so I select generic x86_64
and some other choice??

timer frequency 1000Hz??

other specific option (I deselect all amd support option I've all cpu intel on my board) must select??

regards
giorgio

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