[Octave-bug-tracker] [bug #47400] Repeatable panic on ctrl-c

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?47400>

                 Summary: Repeatable panic on ctrl-c
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Sun 13 Mar 2016 06:57:30 PM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Crash
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

Ctrl-C during execution in most cases halts properly and returns to the
command prompt. This is a rare but repeatable case where ctrl-c causes a panic
and crash.

Steps to reproduce:

1. Run the following at the prompt or as a script.

clear all
arr = rand(6561,6561); disp('calculating...')
result = (arr^28)(1,1)


2. Type ctrl-c. If ctrl-c was invoked before the "calculating" message, it
returns to command prompt. If invoked after, it causes a panic and crash.

This kind of code arises frequently in transfer matrix methods in statistical
mechanics. Looks like recovery from an interrupt in Lapack or BLAS execution
is not possible?

hg id 10c32f940636





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