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From: Han-Wen Nienhuys <hanwen@xs4all.nl>
Cc: guile-devel@gnu.org
Subject: Re: module GC bug
Date: Fri, 08 Jul 2005 23:43:59 +0200	[thread overview]
Message-ID: <42CEF39F.2040608@xs4all.nl> (raw)
In-Reply-To: <87fyuq1mrr.fsf@zagadka.de>

Marius Vollmer wrote:

>>So the closure is a key in a weak hash-table, pointing to the module
>>as a value (using scm_stand_in_procs), the module is always marked
>>during GC. However, since the module points back to the closure via
>>the 'eval-closure slot, the key is always marked. Consequently,
>>neither closure nor module are ever GC'd.
>>
>>I've fixed this by introducing a new function (eval-closure-module)
>>which returns the module of a closure via the eval-closure smob.
> 
> 
> I think the right fix is to change the weak hashtable marking
> algorithm to properly cope with circular references like this.  I will
> try this and then come back to you.  

Interesting. How would you go about doing that?


-- 
  Han-Wen Nienhuys - hanwen@xs4all.nl - http://www.xs4all.nl/~hanwen


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  parent reply	other threads:[~2005-07-08 21:43 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-09 23:32 module GC bug Han-Wen Nienhuys
2005-06-10  6:32 ` Neil Jerram
2005-06-10 11:48   ` Han-Wen Nienhuys
2005-06-19 13:32   ` Han-Wen Nienhuys
2005-06-19 17:33     ` Rob Browning
2005-07-07 18:48     ` Marius Vollmer
2005-06-24 17:50   ` Han-Wen Nienhuys
2005-07-07 18:42 ` Marius Vollmer
2005-07-08  9:24   ` Mikael Djurfeldt
2005-07-09  8:28     ` Han-Wen Nienhuys
2005-07-09 19:28       ` Mikael Djurfeldt
2005-07-09 23:25         ` Han-Wen Nienhuys
2005-07-10  8:16           ` Mikael Djurfeldt
2005-07-09 23:32         ` Han-Wen Nienhuys
2005-07-10  8:17           ` Mikael Djurfeldt
2005-07-08 21:43   ` Han-Wen Nienhuys [this message]
2005-07-13 21:02     ` Marius Vollmer
2005-07-13 22:19       ` Han-Wen Nienhuys
2005-07-16 18:57         ` Marius Vollmer
2005-07-17 18:50           ` Han-Wen Nienhuys
2005-07-17 20:44             ` Marius Vollmer
2005-07-18 13:43               ` Han-Wen Nienhuys
2005-08-01  0:20 ` Marius Vollmer
2005-08-01 11:04   ` Han-Wen Nienhuys
2005-08-10 22:29     ` Marius Vollmer
2005-08-15 23:57       ` Rob Browning
2005-08-16  0:10         ` Marius Vollmer
2005-08-16  0:16         ` Rob Browning
2005-08-28 23:31           ` Han-Wen Nienhuys
     [not found]   ` <42EE63F9.4080102@xs4all.nl>
2005-08-02 19:14     ` Marius Vollmer
     [not found]   ` <42F1DF3E.70204@xs4all.nl>
2005-08-05 14:48     ` Han-Wen Nienhuys

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