Hello,
I am trying to install Xenomai. After patching the kernel (I have
tried with 2.6.29.5 and 2.6.30.5), I get the following error message:
$ make
scripts/kconfig/conf -s arch/x86/Kconfig
CHK include/linux/version.h
CHK include/linux/utsrelease.h
SYMLINK include/asm -> include/asm-x86
CC arch/x86/kernel/asm-offsets.s
In file included from include/linux/sched.h:62,
from arch/x86/kernel/asm-offsets_64.c:8,
from arch/x86/kernel/asm-offsets.c:4:
include/linux/ipipe.h:76:2: error: #error "CONFIG_NR_CPUS is too
large, please lower it."
make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
make: *** [prepare0] Error 2
The CONFIG_NR_CPUS config variable is set to the default 64, but I
still get this error if I lower it to 4 or 2. (This is a dual-core
machine, AMD X2.)
I tried commenting-out this error, just to see what would happen, but
I get an oops on boot. Setting the boot flag earlyprintk=vga shows a
backtrace, and the crash happens immediately after
__ipipe_enable_irqdesc, which is in ipipe_virtualize_irq.
I don't know how to proceed from here, does anyone know why
CONFIG_NR_CPUS is triggering this error?
Thanks,
Steve
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