Hi Philippe, thanks a lot for the hint. I configured my kernel from scratch, and got rid of the linux compile problems. I could thus verify that the commit you mentioned below DOES NOT have the problem I described, i.e., semaphores used by multiple processes which are running on different cores DID NOT hang anymore.
Then, I thought I try to bisect the problem with git, and I pulled the latest version of the 2.5 repository. Interestingly, with the very latest commits, my problem has gone away. I confirmed this by switching back to Alexis' analogy branch, which I need for my development. This branch is not quite as up-to-date as the 2.5 branch, and the hanging problem still exists. I merged the analogy branch with the latest 2.5 branch, and now nothing hangs anymore. I guess, I stop investigating at this point, unless the problem re-apprears. Thanks so much for you help! Best wishes, -Stefan On Jan 5, 2011, at 7:53, Philippe Gerum wrote: > On Wed, 2011-01-05 at 07:41 -0800, Stefan Schaal wrote: >> HI Philippe, >> >> sorry, I must have mis-communicated. This was, of course, a xenomai commit >> that I tried, and the errors I sent you resulted when recompiling the linux >> kernel with this xenomai version. >> > > Those errors are not related to Xenomai, they happen on basic linux > code. Make sure to work from a fresh build tree, using a proper > toolchain. It looks like something is severely broken in your build env. > >> -Stefan >> >> >> On Jan 5, 2011, at 6:07, Philippe Gerum wrote: >> >>> On Sat, 2010-12-25 at 11:02 -0800, Stefan Schaal wrote: >>>> 6a020f5 >>> >>> I don't see how this messages could be related to Xenomai. I was >>> mentioning a Xenomai commit, not a linux one. You should reset to this >>> commit: >>> >>> commit 6a020f5a89955a42f1e03621ae6c63a587e9c75c >>> Author: Philippe Gerum <r...@xenomai.org> >>> Date: Sat Aug 28 13:04:45 2010 +0200 >>> >>> nucleus, posix: use fast APC scheduling call >>> >>> -- >>> Philippe. >>> >>> >> > > -- > Philippe. > > _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
