[erlang-questions] Kernel poll patch

Rickard Green <>
Sat Dec 9 13:08:11 CET 2006


If you use the kernel poll feature of Erlang/OTP R11B-2 on any
OS other than SunOS we recommend you to apply the attached patch.

    $ tar -zxf otp_src_R11B-2.tar.gz
    $ patch -p0 < kernel-poll.patch
    patching file otp_src_R11B-2/erts/emulator/sys/unix/erl_poll.c
    $ # Build as usual...

Release note:

    OTP-6344  A bug in the kernel poll implementation could cause the
              emulator to omit polling for events on file descriptors.
              The bug was only present when using the kernel poll
              implementation based on epoll or kqueue. This bug was
              introduced in erts-5.5.2.

BR,
Rickard Green, Erlang/OTP

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