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[Octave-bug-tracker] [bug #58381] Consistent crash on large memory opera


From: anonymous
Subject: [Octave-bug-tracker] [bug #58381] Consistent crash on large memory operations
Date: Sat, 16 May 2020 23:27:09 -0400 (EDT)
User-agent: Mozilla/5.0 (Android 8.0.0; Mobile; rv:68.0) Gecko/68.0 Firefox/68.0

URL:
  <https://savannah.gnu.org/bugs/?58381>

                 Summary: Consistent crash on large memory operations
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sun 17 May 2020 03:27:07 AM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux

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Details:

Using Octave 7.0 dev on current Manjaro Linux with 16 GB RAM and 8 GB swap.
Created an int16 matrix "mat" of size 352e6 x 5. Created a vector "vvec" of
type double and length 10K (longer than the max value of mat). The following
operations all consistently cause Octave to crash with only a single statement
"Killed" at the shell prompt.


s = sortrows(vvec(mat));
s = sort(vvec(mat),2);
s = sort(vvec(mat)',1)';
s = unique(sort(vvec(mat),2), "rows");


Desired behavior: warn of no memory and return to Octave's prompt.




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