[bug #62305] Extra warning for not finding available RAM

[Mohammad Akhlaghi]

URL:
  <https://savannah.gnu.org/bugs/?62305>

                 Summary: Extra warning for not finding available RAM
                 Project: GNU Astronomy Utilities
            Submitted by: makhlaghi
            Submitted on: Wed 13 Apr 2022 01:02:15 AM BST
                Category: All Gnuastro
                Severity: 3 - Normal
              Item Group: Output not reasonable
                  Status: In Progress
                 Privacy: Public
             Assigned to: makhlaghi
             Open/Closed: Open
         Discussion Lock: Any

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Details:

On some systems (tested on Ubuntu within the Windows Subsystem for Linux), the
'/proc/meminfo' file doesn't have the 'MemAvailable" keyword, but only has the
'MemFree' keyword. On most other GNU/Linux systems, both these keywords are
available.

Therefore, when reading a large file on the former type of operating systems,
Gnuastro programs will print the following warning (and would not be able to
find how much available memory there is!).


astsegment: WARNING: /proc/meminfo: didn't contain a 'MemAvailable' keyword
hence the amount of available RAM couldn't be determined. If a large volume of
data is provided, the program may crash. Please contact us at
'bug-gnuastro@gnu.org' to fix the problem


When there was no problem (space was actually available), the program would
finish, but this warning would be annoying for the user.

This bug was reported by Juan Miro.




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