Xiang Xiao d5d134bc79 fs/aio: raise the default AIO_LISTIO_MAX so LTP keeps passing
The new CONFIG_FS_AIO_LISTIO_MAX option defaults to 10 and lio_listio()
now rejects nent > {AIO_LISTIO_MAX} with EINVAL.  The LTP release pinned
by apps/testing/ltp (20230516) submits 256 requests in a single batch from
conformance/interfaces/lio_listio/2-1.c, so ltp_interfaces_lio_listio_2_1
now fails on every configuration that enables CONFIG_TESTING_LTP
(sim:citest, rv-virt:citest, sim:posix_test):

  lio_listio/2-1.c Error at lio_listio() 22: Invalid argument

The EINVAL check itself is required by POSIX, so keep it and raise the
default instead; the limit no longer costs memory because the requests are
linked through the aiocb's own lio_link.

While here, keep _POSIX_AIO_LISTIO_MAX at its POSIX-mandated value of 2
and let AIO_LISTIO_MAX carry the configurable implementation limit.

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2026-09-14 17:12:49 -03:00
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2026-08-25 08:43:13 -04:00
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Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.

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