Just for reference, I tried your example with the head of the source code
repository, and I got:

$ apl
      a←1500 1500⍴?(1500×1500)⍴10
      ⎕wa
732487680
      b←⌹a
      )off

However, since your  ⎕wa was substantially less than mine, it may be that
you ran out of RAM and I didn't.

Also, what version of the GNU APL source code did you start with?  (The
repository head is highly recommended.)

Hope this helps.

Blake McBride


On Fri, Jan 1, 2016 at 2:03 PM, Rick Mayforth <gri...@msn.com> wrote:

> The following sequence caused the fault. APL exits. The interpreter is
> running under Debian 8 in a VMWare virtual machine with 2GB RAM & 880MB
> swap space. One would expect a WS FULL or some other APL error in this
> instance rather than a forced exit, no?
>
>
> a←1500 1500 ⍴ ?(1500×1500)⍴10
>       ⎕wa
> 193433600
>       b←⌹a
> Segmentation fault
>
>
>
>

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