[Dbd-firebird-devel] Segfault in DBD::Firebird

[Damyan Ivanov]

[Cc-ing upstream list]

-=| Nicholas Bamber, 05.07.2012 08:20:55 +0100 |=-
> On 05/07/12 08:07, x.guimard at free.fr wrote:
> > ----- Mail original -----
> >> De: "Nicholas Bamber" <nicholas at periapt.co.uk>
> >> À: "Xavier" <x.guimard at free.fr>
> >> Cc: "Debian Perl List" <debian-perl at lists.debian.org>
> >> Envoyé: Jeudi 5 Juillet 2012 08:23:57
> >> Objet: Re: Segfault in DBD::Firebird
> >>
> >> On 05/07/12 05:17, Xavier wrote:
> >>> I've build 0.91 in a chroot without problem, but when I try this
> >>> new test with 0.91, it fails.
> >>
> >> Xavier,
> >> 	Just to be clear. You are saying this used to build in a chroot okay
> >> but does not do so any longer?
> > 
> > First, I've built libdbd-firebird-perl 0.91 in the same environment => It's OK
> > Then, I've launched 1.00 tests using 0.91 libs => I've the same segfault than with "make test" in 1.00 environment.
> > 
> > So, the problem isn't new but has been revealed by the new tests. Now, I think that we have to test with different version of firebug itself to know if it's a XS (or Perl) problem or a Firebird problem.
> > 
> 
> Well that's worth a bug report with severity normal I think.

I took some time to investigate. The bug is old, as old as ever and is 
present in all releases. It is triggered when you a) use AutoCommit=1, 
b) start a "fetching" (e.g. select) statement, and c) execute a schema 
manipulation statement via do() before finishing the fetching 
statement.

Version 1.0 breaks because it includes a test for this exact situation 
and since the bug wasn't really addressed, the test fails.

I found uncommitted changes in my upstream tree targeted at fixing the 
issue, but these are a) invasive and b) not ready yet. So I'd 
recommend simply skipping the test file for the 1.0 package. Marking 
the individual test TODO won't work as the thing segfaults.

Firebird version has nothing to do with this.

Cheers!
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