From: "Jérémie Roquet" <jroquet@arkanosis.net>
To: Kamil Dudka <kdudka@redhat.com>
Cc: "Zsh Hackers' List" <zsh-workers@zsh.org>
Subject: Re: unbounded recursive call in a shell script crashes zsh
Date: Tue, 11 Apr 2017 16:01:10 +0200 [thread overview]
Message-ID: <CAFOazAM_2dX4F-5i5ER61EFf8WmO-43CnNbJq3CZWQHdaG78=A@mail.gmail.com> (raw)
In-Reply-To: <CAFOazAOTiUu8w9ZHZnhpBBtQ5FHj-Jb1OLxGf6eO4S-9DS7=fQ@mail.gmail.com>
2017-04-11 15:29 GMT+02:00 Jérémie Roquet <jroquet@arkanosis.net>:
> 2017-04-11 15:00 GMT+02:00 Kamil Dudka <kdudka@redhat.com>:
>> The following shell script crashes zsh (tested with zsh-5.3.1-90-g63f086d):
>>
>> function foo() {
>> if true; then
>> foo
>> fi
>> }
>>
>> foo
>
> That's interesting:
>
> $ zsh -c 'foo() { foo }; foo'
> foo: maximum nested function level reached
>
> $ zsh -c 'foo() { if true; then foo; fi }; foo'
> Segmentation fault
That looks like a stack overflow…
Doing either of the following fixed the issue for me:
- recompile after “./configure --enable-max-function-depth=500”
(default is 1000);
- execute after “ulimit -s 16384” (default for me was 8192).
Best regards,
--
Jérémie
next prev parent reply other threads:[~2017-04-11 14:01 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-11 13:00 Kamil Dudka
2017-04-11 13:29 ` Jérémie Roquet
2017-04-11 14:01 ` Jérémie Roquet [this message]
2017-04-11 14:38 ` Kamil Dudka
2017-04-12 2:12 ` Bart Schaefer
2017-04-12 7:30 ` Kamil Dudka
2017-04-12 22:11 ` Bart Schaefer
2017-04-13 14:30 ` Kamil Dudka
2017-04-13 15:21 ` Jérémie Roquet
2017-04-13 16:01 ` Jérémie Roquet
2017-04-15 16:14 ` Bart Schaefer
2017-04-16 18:56 ` Daniel Shahaf
2017-04-16 21:00 ` Bart Schaefer
2017-04-16 23:12 ` Daniel Shahaf
2017-04-17 0:17 ` Bart Schaefer
2017-04-18 13:54 ` Kamil Dudka
2017-04-19 21:01 ` Bart Schaefer
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