Date: Thu, 7 Oct 2004 21:10:06 +0300 From: Ruslan Ermilov <ru@freebsd.org> To: Dan Nelson <dnelson@allantgroup.com> Cc: freebsd-current@freebsd.org Subject: Re: awk leaking memory during arithmetic? Message-ID: <20041007181006.GC84576@ip.net.ua> In-Reply-To: <20041004172224.GA30419@dan.emsphone.com> References: <20041004171422.GK262@numachi.com> <20041004172224.GA30419@dan.emsphone.com>
index | next in thread | previous in thread | raw e-mail
[-- Attachment #1 --]
On Mon, Oct 04, 2004 at 12:22:24PM -0500, Dan Nelson wrote:
> 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.
>
There's an open PR bin/72370 on this (now with the patch).
Cheers,
--
Ruslan Ermilov
ru@FreeBSD.org
FreeBSD committer
[-- Attachment #2 --]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (FreeBSD)
iD8DBQFBZYZ+qRfpzJluFF4RAjlKAJ9BGrnH4om7oVoCIe8dwiON5ulKAwCcDjHG
qukxP/UwTbS+r8B1vsiDBcM=
=UEy1
-----END PGP SIGNATURE-----
help
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20041007181006.GC84576>