Ulrich Schwab wrote:
On Tuesday 06 March 2007 11:32, Theo Veenker wrote:
Jan Kiszka wrote:
Theo Veenker wrote:
Jan Kiszka wrote:
Theo Veenker wrote:
Hi all,
I'm installing xenomai 2.2.5 (kernel 2.6.17.14) on a number of
When starting new, pick something new, i.e. 2.3 right now. Only if
you
have good reasons, staying at older versions is recommended.
I would love to, but I couldn't get my software running with 2.3.
I had to convert (a month ago) my software from RTLinux to Xenomai
having only a few days for it. I have a kernel module and an app
that talks to it. I use the posix skin. But with 2.3 apparently
I had to load posixio and something (forgot) manually, but I just
couldn't get these loaded. Since time was running out I decided
to stay with 2.2.5 for the time being (unfortunately).
I do understand. But once your time constraints relaxed a bit, please
don't forget to post remaining issues here. Maybe they reveal some real
bug.
systems (MSI 945P, Intel P4 3Ghz). My kernel runs fine on several
other/older systems, but on the new systems there is something going
on every 8 seconds. See output of latency test below. What could
this be? Is this an SMI effect?
Is CONFIG_XENO_HW_SMI_WORKAROUND selected? What does the kernel output
tell you about if it's working? Do you have an ICH7 chipset on your
board? Would be another reason to update Xenomai (2.3 takes care of
it, 2.2.x doesn't)... :)
OK. I finally installed my clients. It took a while because although all
systems are identical they didn't all behave the same. Apparently some
MSI 945P boards have problems when installing an ubuntu 686 kernel image.
Taking a 386 image as a starting point worked.
Recompiled my kernel 2.6.17.14 with xenomai 2.2.5 and SMI WORKAROUND
selected, but it didn't have any effect. I don't see any xenomai
output in the kernel logs. Same thing without the workaround. So it
doesn't even detect SMI. The mobo has a ICH7 chipset.
ICH7 is not in the list of SMI chipsets in xenomai 2.2.5
compare the file ksrc/arch/i386/smi.c between versions 2.3 and 2.2.5
This is the only change needed for the SMI detection and workaround
to work for this chipset in 2.2.5, if You decide NOT to switch to 2.3
You will need to enanble the SMI workaround in the configuration, of course.
Thanks! I'll use that until I manage to use 2.3 for my app.
Theo
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