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and subject line Bug#180771: perl: calculating primes hack segafults on i386:
backtrace
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From: Goswin Brederlow <[EMAIL PROTECTED]>
To: Debian Bug Tracking System <[EMAIL PROTECTED]>
Subject: perl: calculating primes hack segafults on i386
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Package: perl
Version: 5.8.0-15
Severity: normal
On i386 the following segfaults:
% perl -wle '$_=1;(1x$_)!~/^(11+)\1+$/&&print while$_++'
...
7043
7057
zsh: segmentation fault perl -wle '$_=1;(1x$_)!~/^(11+)\1+$/&&print while$_++'
On other cpus (/os) it works (longer?), no segfaults seen yet:
Linux alpha 2.4.19 #2 Fri Dec 13 20:12:18 CET 2002 alpha unknown unknown
GNU/Linux
SunOS rzdspc5 5.9 Generic_112233-04 sun4u sparc SUNW,Sun-Fire-880
MfG
Goswin
-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux dual 2.4.19 #11 SMP Thu Jan 9 00:18:31 CET 2003 i686
Locale: LANG=C, LC_CTYPE=de_DE
Versions of packages perl depends on:
ii libc6 2.3.1-11 GNU C Library: Shared libraries an
ii libdb4.0 4.0.14-1 Berkeley v4.0 Database Libraries [
ii libgdbmg1 1.7.3-27.1 GNU dbm database routines (runtime
ii perl-base 5.8.0-15 The Pathologically Eclectic Rubbis
ii perl-modules 5.8.0-15 Core Perl modules.
-- no debconf information
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Date: Wed, 26 Oct 2005 16:16:44 +0100
From: Andrew Suffield <[EMAIL PROTECTED]>
To: Damyan Ivanov <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Subject: Re: Bug#180771: perl: calculating primes hack segafults on i386:
backtrace
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On Wed, Oct 26, 2005 at 02:04:14PM +0300, Damyan Ivanov wrote:
> Here's a backtrace.
It's blatantly a stack overflow. User error for not providing a host
with infinite memory. Don't try to run programs like that unless you
have a hypothetical Turing machine available.
--=20
.''`. ** Debian GNU/Linux ** | Andrew Suffield
: :' : http://www.debian.org/ |
`. `' |
`- -><- |
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