Date: Mon, 4 Oct 2004 12:22:24 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Brian Reichert <reichert@numachi.com> Cc: freebsd-current@freebsd.org Subject: Re: awk leaking memory during arithmetic? Message-ID: <20041004172224.GA30419@dan.emsphone.com> In-Reply-To: <20041004171422.GK262@numachi.com> References: <20041004171422.GK262@numachi.com>
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In the last episode (Oct 04), Brian Reichert said:
> I may be misremembering some awk lore, but this still seems like
> undesired behavior. Essentially, I'm trying to sum up some numbers,
> but awk spin, chewing up memory, until it drops a huge core file.
>
> # uname -a
> FreeBSD backup.internal 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #1: Mon Sep 27
> 19:27:46 EDT 200 root@backup2.internal:/usr/src/sys/i386/compile/FILESERVER i386
>
> # cat test_list | awk '{print $1}'
> 53999616
> 53999616
> 53311488
> 102475776
> 257134592
> 858624
> 512909312
> 1147392
> 39385174
> 35815424
>
> # cat test_list | awk '{ t += $1 } END {print $t}'
> awk in malloc(): error: allocation failed
I think "print t" is what you want here. $t would refer to the t'th
field in the line, and it looks like awk tried to resize the array out
to 1111037014 entries and failed.
--
Dan Nelson
dnelson@allantgroup.com
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