6887205 program using Posix aio gets unexpected SIGPOLL (SIGIO) signals
6866221 Setting AIO_SIGNALLED needs to be tightened.
6815882 aio_cleanup_thread() can get stuck after missing to process the aio_doneq
6539184 aio_cleanup thread can spin forever when as_unmap is called, and there is no outstanding aio
PSARC 2005/706 SIGEV_THREAD and SIGEV_PORT 4017841 The SIGEV_THREAD option for event notification not implemented
4954646 polled kaio blocks DR delete_memory_thread if aiowait not called
6281254 port_getn will trip on a NULL pointer and cause a panic 6241163 Using aio with event ports can hang the system
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