[issue11184] test_io error on AIX

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Thanks for the patch.

> The test fails in a different way now:
> [...]
> IOError: [Errno 27] File too large

This seems to mean that your file system isn't configured for large
files. According to
http://publib.boulder.ibm.com/infocenter/pseries/v5r3/index.jsp?topic=/com.ibm.aix.genprogc/doc/genprogc/prg_lrg_files.htm :

        For the JFS, the maximum file size is determined by the
        parameters used at the time the file system was made. For JFS
        file systems that are enabled for large files, the maximum file
        size is slightly less than 64 gigabytes (0xff8400000). For all
        other JFS file systems, the maximum file size is 2Gb-1
        (0x7fffffff). Attempts to write a file in excess of the maximum
        file size in any file system format will fail, and errno will be
        set to EFBIG.

(I'm not under AIX, but EFBIG is 27 here)

What does test_largefile output?

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