On 02/14/2013 08:32 PM, Kris Ellis wrote:
Thanks, I'll look into your buldroot generator.
Well, actually this was a wrong advice, at least with respect to using
buildroot: that generator does not use BR2, only the one I'm using
locally does. But I had to hack the Xenomai support in BR2's 2010.02
release, which you do have built-in now in the latest one.
I have not tried using gdb yet, so I have no backtrace that I can provide.
This would help.
As far as the --enable-x86-sep flag is concerned, is there a place in
buildroot to turn this on, or do I have to go and manually modify the
xenomai.mk file?
You need to fix up XENOMAI_CONF_OPT manually. I suspect that you might
have a kernel compiled for a CPU which does not provide SEP, with the
userland code configured by default with --enable-x86-sep.
So I would try check this first, prior to pulling more hairs:
First, log in your target box, and check whether /proc/cpuinfo mentions
"sep" as an available feature for your processor. If not, then either:
- fix your i386 CPU configuration for the kernel and rebuild it,
assuming your CPU does have sep actually (this is the most likely
option), leaving userland as it is.
- Fix up XENOMAI_CONF_OPT to add --disable-x86-sep and rebuild userland,
leaving the kernel config as it is.
To speed up things, I would suggest to try out these tests with no BR2
in the picture for now, using a plain configure+build sequence for Xenomai.
--
Philippe.
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