[ltt-dev] smp_call_function_single not implemented

Ajit R ajitrzid at yahoo.com
Mon Jul 27 07:55:34 EDT 2009

   I am trying to include LTT support on an ARM11 MPCORE (ARMv6) based target, which runs uclinux 2.6.23 and runs SMP + CPU HOTPLUG with 2 cores. I have been able to patch the LTT sources ( on this kernel source tree. Compilation fails with an error "smp_call_function_single: undefined reference". There is no implementation of this function found in the source. Is there a way I can get the same functionality by other means?
   This implementation of LTT is based on timer interrupts. Is it possible to backport the 2.6.29 based OMAP V7 implementation (as it uses the PMC + the CCNT and which the MPCORE too has) or do you foresee any issues (dependencies/etc) ?



More information about the lttng-dev mailing list