Jan Kiszka wrote: > RAKOTOSALAMA, Nirilanto wrote: >> Hello everybody. >> >> I managed to compile a stable kernel (the Scalability O(1) scheduler options >> seems to make my system freeze) > > That's not good. What precisely did you do? Applied the .config you > posted, just enabling CONFIG_XENO_OPT_SCALABLE_SCHED? And what test > case, latency?
Hmm, maybe related: Philippe, I once posted you an oops under qemu-system-x86_64 which we explained with a probably broken toolchain. I just pulled out that config again, updated everything (crosstools-0.43: gcc-4.1.1-glibc-2.3.6-tls + tiny patch [1], Xenomai trunk, adeos-ipipe-2.6.19-x86_64-1.0-06) - and still got that crash on "latency" startup. The oops still happens around [2]. Interesting is that turning off CONFIG_XENO_OPT_SCALABLE_SCHED makes it go away. Given that I now tested my setup with gcc4 (instead of the earlier gcc3 run), there may be some code that "confuses" compilers (or it's simply broken). I failed to reproduce the issue on x86, and cross debugging somehow still don't work for me, so I can't tell more. Jan [1]https://www.x86-64.org/pipermail/discuss/2006-November/009546.html [2]http://www.rts.uni-hannover.de/xenomai/lxr/source/ksrc/nucleus/shadow.c?v=SVN-trunk#225
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