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From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Re: segmentation fault with {1..1234567}
Date: Sun, 06 Jul 2014 12:46:29 -0700	[thread overview]
Message-ID: <140706124629.ZM19578@torch.brasslantern.com> (raw)
In-Reply-To: <20140706193055.209f7a2b@pws-pc.ntlworld.com>

On Jul 6,  7:30pm, Peter Stephenson wrote:
} Subject: Re: segmentation fault with {1..1234567}
}
} On Sun, 06 Jul 2014 09:16:09 -0700
} Bart Schaefer <schaefer@brasslantern.com> wrote:
} > IIRC the use of VARARR() was introduced in order to more evenly split the
} > memory use between the heap and the stack on systems that had limited RAM.
} > Obviously more recent hardware is likely to have divided process address
} > space differently, and this former optimization has become a liability.
} 
} Well, all I can say is that without the following change it crashes on
} my system (where I have not tweaked any limits) and with the following
} change it doesn't.
} 
} Maybe I'm just selfish but I prefer the latter.

I do not disagree.

The question is, do we fix this one instance (your patch), do we redefine
VARARR() [possibly conditionally] to change all the usages at once, or do
we individually evaluate the 50-odd uses of VARARR()?

What constitutes "a lot" to avoid using alloca() upon?


  reply	other threads:[~2014-07-06 19:46 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-04 17:25 Vincent Lefevre
2014-07-05  1:40 ` Bart Schaefer
2014-07-05 11:12   ` Vincent Lefevre
2014-07-05 16:57     ` Bart Schaefer
2014-07-05 23:39       ` Vincent Lefevre
2014-07-06  0:09         ` Vincent Lefevre
2014-07-06 19:46           ` Bart Schaefer
2014-07-07  1:12             ` Vincent Lefevre
2014-07-06 16:16         ` Bart Schaefer
2014-07-06 18:30           ` Peter Stephenson
2014-07-06 19:46             ` Bart Schaefer [this message]
2014-07-06 22:23               ` Mikael Magnusson
2014-07-07 19:33               ` Peter Stephenson
2014-07-08  1:08                 ` Bart Schaefer
2014-07-08 10:38                   ` Peter Stephenson
2014-07-24  9:44                     ` Peter Stephenson
2014-07-24 15:35                       ` Bart Schaefer

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