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From: Kamil Dudka <kdudka@redhat.com>
To: Bart Schaefer <schaefer@brasslantern.com>
Cc: zsh-workers@zsh.org
Subject: Re: unbounded recursive call in a shell script crashes zsh
Date: Wed, 12 Apr 2017 09:30:48 +0200	[thread overview]
Message-ID: <2420758.31stuSQeAV@kdudka-nb> (raw)
In-Reply-To: <170411191241.ZM5298@torch.brasslantern.com>

On Tuesday, April 11, 2017 19:12:41 Bart Schaefer wrote:
> In fact 4.3.11 running out of job table space means that it consumed
> all malloc() memory before consuming all of the stack;

I cannot confirm your hypothesis.  In my testing environment, zsh-4.3.11 
raised the error when the condition (newsize > MAX_MAXJOBS) in expandjobtab() 
became true:

https://sourceforge.net/p/zsh/code/ci/zsh-4.3.11/tree/Src/jobs.c#l1735

At that time, the total amount of memory allocated by malloc() was 689120 
bytes (<1 MiB) on an x86_64 machine with 16 GiB of physical memory.

> 5.3.1 is much better about heap footprint.

Definitely an improvement but it does not solve the problem in question.

Kamil


  reply	other threads:[~2017-04-12  7:30 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
2017-04-11 14:38     ` Kamil Dudka
2017-04-12  2:12       ` Bart Schaefer
2017-04-12  7:30         ` Kamil Dudka [this message]
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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