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bugs - Kernel crash with RandomInteger


Bug introduced in 11.2





I am using RandomInteger to create sorted test data in the following way:


lists = Sort /@ RandomInteger[10000, {10, 200000}];

With Mathematica 11.3, the kernel crashes on me if I evaluate the line above in the front a couple of times. The crash occurs on both the Windows and OS X versions of Mathematica. I could not reproduce the bug with Mathematica 11.2.



Answer



This is a bug that can be worked around by disabling the Suggestions bar.


Given the input, it tries several operations in the background (wrapped in TimeConstrained) and one of these -- a call to Flatten -- happens to crash when interrupted.


The reason $HistoryLength = 0 or ending the input cell with ;Null; works is that it prevents the Suggestions bar from seeing the input.


This is another instance of the same bug.



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