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From: | Paul Eggert |
Subject: | bug#27585: segfault when evaluating a file containing only backticks |
Date: | Fri, 14 Jul 2017 05:09:34 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
As Eli and Daniel mentioned, this area of Emacs cannot be 100% reliable and to some extent is indeed a "ticking time bomb". That being said, the problem in this particular case was that Emacs had a bad heuristic for guessing whether a segmentation violation address was due to stack overflow on GNU/Linux. This bad heuristic has been in place for years without anybody reporting it. It's good that we fixed this bug (though I hope "normal" users never notice the bug fix :-).
0001-Improve-stack-overflow-heuristic-on-GNU-Linux.patch
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