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From Ævar Arnfjörð Bjarmason <ava...@gmail.com>
Subject Re: apache2 + mod_perl + Catalyst + Session = Segmentation fault
Date Tue, 13 Nov 2012 14:23:56 GMT
On Sat, Sep 29, 2012 at 1:08 PM, Stefan Profanter
<catalyst@s.profanter.me> wrote:
>> >
>> > Looks like you are using Storable to stream out cookies?  Looks like
>> > something in there is causing Storable to puke.  I see things like
>> > array_call, store_blessed, store_hash... So I'm guessing your passing
>> > Storable some kind of object?  Does it have any recursive parts?
>> >
>> > I googled "perl storable seg fault" and it looks like people have
>> > gotten Storable to seg fault before.  I'm not sure if the stack trace
>> > is reading objects or writing them.  Maybe you can glean from other's
>> > what makes Storable segfault.
>> >
>> > First figure out if its reading or writing that causes the problem,
>> > then try to figure out what part of the object is so upsetting.
>> >
>> >> 3873            return newSVpv(mbase, MBUF_SIZE());
>> >
>> >
>> > Hum... any chance that is really really big?
>
> Yes, you were right.
> I stored a DBIX::ResultSet->single Object in session and it seems this
> caused the SegFault. Now I stored only the ID instead of whole object and it
> works.
>
>>
>> Maybe look at Sereal as an alternative to Storable.
>>
>> https://github.com/Sereal/Sereal/
>> http://search.cpan.org/~smueller/Sereal-Decoder/lib/Sereal/Decoder.pm
>> http://search.cpan.org/~smueller/Sereal-Encoder/lib/Sereal/Encoder.pm
>>
>
> This seems interesting! Do you know by chance how Catalyst::Plugin::Session
> can be set to use Seareal instead of Storable?

I don't have experience with that Catalyst plugin but for e.g.
Apache::Session we've been using Data::FlexSerializer to migrate away
from Sereal.

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