[Octave-bug-tracker] [bug #60875] Save function doesn't warn when disk is full

[Rik]

Update of bug #60875 (project octave):

                  Status:                    None => Confirmed              
                 Release:                   6.2.0 => dev                    

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Follow-up Comment #2:

Confirmed.

For testing, I used a file on /tmp which I mounted as a partition through a
loopback device.  Most of these commands require root privilege.


dd if=/dev/zeros of=/tmp/filepartition bs=1M count=10
mkdir /mnt/tmp_filepartition
losetup /dev/loop0 /tmp/filepartition
mount /dev/loop0 /mnt/tmp_filepartition
chmod -R 777 /mnt/tmp_filepartition


For a test file, I used


x = rand (1e3, 1e3);
save x.mat x


I tried to save directly to the partition, and as reported here that leads to
a truncated file with no warning whatsoever.

I tried the `copyfile` and `movefile` commands and they get it right.  See
session log below.


octave:6> copyfile ('x.mat', '/mnt/tmp_filepart/')
cp: error writing '/mnt/tmp_filepart/x.mat': No space left on device
error: copyfile: operation failed: 
error: called from
    copyfile at line 161 column 7
octave:7> movefile ('x.mat', '/mnt/tmp_filepart/')
mv: error writing '/mnt/tmp_filepart/x.mat': No space left on device
error: movefile: operation failed: 
error: called from
    movefile at line 177 column 7





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