Defect in XSH lio_listio()

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        Defect report from : Ulrich Drepper , Red Hat, Inc.

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@ page 695 line 23069 section lio_listio() objection [ud-lio_listio]

Problem:

Edition of Specification (Year): 2004

Defect code :  2. Omission

Nowhere in the document is it stated what happens if individual I/O
requests issued via lio_listio() have aio_sigevent members which specify 
actions other then SIGEV_NONE.  It is clear that the sigevent specified
in the lio_listio parameter list is used.

A simple test shows that there is a difference in existing
implementations.  Solaris and AIX both handle the sigevent information
for the individual requests.  Linux does not and only issues one event
when all the work is done.

I'm willing to concede that the Solaris/AIX semantics has its benefits
and am willing to change my implementation.  But the spec should be
extended as well.

Action:

I suggest adding a new paragraph at line 23069:

The aio_sigevent member specifies the notification which occurs when
the request specified by this element of /list/ is completed.