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We use sysvinit to build our system. When I input "poweroff" command, sometimes the system has no response.
I did some investigation, and found that in the function check_init_fifo() of init, the line:
n = read(pipe_fd, &request, sizeof(request));
sometimes it return -1, and the error code is EAGAIN.
I modified the init code, and let it retry for 5 times when the error code is EAGAIN, but not work well.
Does anyone know why sometimes read /dev/initctl return -1? How to resolve this? Thanks.
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