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Postings from September 2012
On Mon Sep 24 05:34:57 2012, b_jonas wrote:
> On Fri Sep 21 05:35:18 2012, LeonT wrote:
> > > cat Devel/foo.pm
> > package Devel::foo;
> > *DB::DB = sub {} if 0;
> > 1;
> >
> > > perl -d:foo -e0
> > Segmentation fault (core dumped)
> >
> > It seems pp_dbstate doesn't check it the &DB::DB is really defined,
> > only that it has been seen.
>
> This seems familiar. Yup: bug #34892 -- a bug from years ago which
> claims that declaring DB::sub without defining it can cause a segfault.
>
> If you know what caused this bug, maybe check all the other debugger
> callbacks for similar problems now.
In fact, you might be able to get a smaller test case for this bug using
that knowledge. Try this:
perl -we 'sub DB::DB; BEGIN { $^P = 0x22; } for (0 .. 9) { warn "hello
world"; }'
This should give some kind of error or just print hello world ten times,
but instead at least perl 5.14 seems to do nothing and exit
successfully. I don't have a more recent perl at hand to test now, sorry.
Ambrus
---
via perlbug: queue: perl5 status: resolved
https://rt.perl.org:443/rt3/Ticket/Display.html?id=114990
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