retitle 624759 perl: segfaults when freeing deeply nested structures
reassign 624759 perl 5.10.1-17
tag 624759 upstream
forwarded 624759 http://rt.perl.org/rt3/Public/Bug/Display.html?id=44225
thanks
On Sun, May 01, 2011 at 03:55:45PM +0400, vlakhadzhi wrote:
> Perl segfaults while clean up before exiting from test script:
>
> my $t = XML::Twig->new;
> $t->set_root(my $root = XML::Twig::Elt->new('root'));
>
> for(my $i=0; $i<20000; $i++) {
> print "$i\n" unless $i%1000;
> $root->insert_new_elt('child');
> }
This is a long standing upstream bug [perl #44225], "a stack overflow
caused by the recursive implementation of the reference counting scheme".
for (my $len=1; ; $len<<=1) {
my $list;
print STDERR "list length $len\n";
foreach (1..$len) { $list={ next => $list, }; }
}
You can work around it by raising the stacksize limit, but there's
no real fix ATM.
--
Niko Tyni nt...@debian.org
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