smp and kernel poll

Rickard Green <>
Thu May 18 14:57:16 CEST 2006

Kernel poll with the non-smp emulator should work as before. We haven't 
implemented support for kernel poll and smp (we probably will in the 
future). Kernel poll is automatically disabled when building the smp 
emulator, i.e., --enable-kernel-poll will enable kernel poll on the 
non-smp emulator but wont affect the smp emulator.

Rickard Green, Erlang/OTP

Christophe Romain wrote:
> Hello,
> in erts/emulator/sys/unix/sys.c:37 we can see
> #if defined(ERTS_SMP) && defined(USE_KERNEL_POLL)
> #  error "smp support and kernel poll currently not supported (use poll)"
> #endif
> I would like to apply epoll patch from sipphone
> and I wonder if there is an issue with SMP.

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