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 > > > >