Andi Vajda wrote:
> 
> On Wed, 23 Aug 2006, Julien Anguenot wrote:
> 
>> Andi Vajda wrote:
>>>
>>> On Tue, 1 Aug 2006, Yura Smolsky wrote:
>>>
>>>> The PyLucene (2.0.0-1) that I used I was only able to get to compile
>>>> with gcc 3.4.6. I tried numerous times to get it to compile with gcc
>>>> 4.x.x with no luck.
>>>>
>>>> It seems that there is a gcc 2gb limit size issue with gcj in all 3.x.x
>>>> versions and was not fixed until gcc 4.x.
>>>>
>>>> here is a reference
>>>> http://lists.osafoundation.org/pipermail/pylucene-dev/2006-March/000933.html
>>>>
>>>>
>>>>
>>>> My point is, i dont see how to get PyLucene 2.0.0.-1 and a later 4.x
>>>> version of gcc on a debian or fedora box. I attempted to get this to
>>>> compile for two weeks at the beginning of this month and had no luck.
>>>
>>> Yes, this is a known problem.
>>>
>>> I've been able to use gcj 4.1.0 on gentoo linux with a patch. I suspect
>>> it would work just as well on any Linux such as Debian or Ubuntu.
>>>
>>> I applied the patch as described in this message:
>>>     http://gcc.gnu.org/ml/java/2006-03/msg00190.html
>>>
>>> It seems, though, that this patch was superceded by the patch in bug
>>> 13212:
>>>     http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13212
>>> but I haven't tried it yet.
>>>
>>>
>>> If this doesn't solve the gcj 4.x on non Red Hat Linux problem you then
>>> have two options:
>>>
>>>   1. dig deeper into finding why gcj 4.x doesn't work on non Red Hat
>>> Linux
>>>      and get help from [EMAIL PROTECTED] (this is how I got the first
>>> patch
>>>      mentioned above)
>>>
>>> or
>>>
>>>   2. implement an FSDirectory in python. For an example, see the
>>>      Test_PythonDirectory.py unit tests. I don't expect python to
>>> have the
>>>      same 2gb file size limit.
>>
>> Hi Andi,
>>
>> I just tried the patch you mentioned with a gcc-4.1.0 and gcc-4.1.1
> 
> Which one ? the one in the mail message
>   (http://gcc.gnu.org/ml/java/2006-03/msg00190.html)
> or the one in bug 13212
>   (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13212)

The one in the mail message.

> I have only tried the one in the mail message.
> I should try the one in bug 13212.

I'm in so I'm going to give it a try.

>> The patch does apply well on the gcc source using the release tarballs
>> for both gcc-version but when launching the PyLucene tests with both
>> 1.9.1 and 2.0.0-1, with both versions of the gcc above, I got the
>> following warnings :
>>
>> GC Warning: Repeated allocation of very large block (appr. size 512000):
>>        May lead to memory leak and poor performance.
>> GC Warning: Repeated allocation of very large block (appr. size 512000):
>>        May lead to memory leak and poor performance.
>> GC Warning: Repeated allocation of very large block (appr. size 512000):
>>        May lead to memory leak and poor performance.
> 
> I would try to put a breakpoint at the location of this warning to see
> who is allocating all this memory and what for. Then I'd contact
> [EMAIL PROTECTED] with a question about it.

I do not have actual traceback here.  These are warnings only. Can you
gimme a pointer on how to do hunt this please ?

> I did not see this problem when I tried the patch in the mail message.
> 
>> Should I try out a 4.2.x snapshot ?
> 
> It would be interesting to see what happens there...
> I don't know how far you'd get, I haven't tried 4.2 in a long while.

I'm currently compiling a gcc trunk. I'll keep you posted about the result.

        J.

-- 
Julien Anguenot | Nuxeo R&D (Paris, France)
Open Source ECM - www.nuxeo.com
CPS Platform - http://www.cps-project.org
Mobile: +33 (0) 6 72 57 57 66

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