7i77 5i25 hm2_pci unloaded

andypugh
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9 years 11 months ago #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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9 years 11 months ago #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

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andypugh
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9 years 11 months ago #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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9 years 11 months ago #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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9 years 11 months ago #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?

Code:

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

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bkt
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9 years 11 months ago #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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9 years 11 months ago #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)"

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bkt
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9 years 11 months ago #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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9 years 11 months ago #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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9 years 11 months ago #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??

Attachment not found

timer frequency 1000Hz??

Attachment not found

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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