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Re: [Gcl-devel] SGC on MacOS X (continued)
From: |
Camm Maguire |
Subject: |
Re: [Gcl-devel] SGC on MacOS X (continued) |
Date: |
02 Aug 2004 18:26:55 -0400 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.2 |
Greetings! Will investigate further, but my hunch is that one of the
mark origins (arguments to enter_mark_origin) lie on the same page as
your sgc_type_map. Can you confirm?
Take care,
Aurelien Chanudet <address@hidden> writes:
> Hi Camm & all,
>
> I looked at my SGC issue during the week-end.
>
> It turns out that the test below (at the beginning of
> sgc_start in sgbc.c) never evaluates to true, thus
> resulting in a sgc_type_map array never marked as
> writable.
>
> if (npp<MAXPAGE && sgc_type_map[npp] !=
> SGC_PERM_WRITABLE)
>
> perm_writable(&sgc_type_map[0],sizeof(sgc_type_map));
>
> Modifying this test to make it evaluate to true
> apparently solves the problem. So now the question
> that is left to solve is : why does this test evaluate
> to false ? I noticed that, at this point in the
> program execution, my sgc_type_map array holds the
> following values :
>
> sgc_type_map[page(sgc_type_map)]=4
> sgc_type_map[page(sgc_type_map)+1]=0
> sgc_type_map[page(sgc_type_map)+2]=0
> ...
> sgc_type_map[page(sgc_type_map+sizeof(sgc_type_map))-1]=0
>
> Any clue as to what's going wrong ?
>
> Thanks,
> Aurelien
>
>
>
>
>
>
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--
Camm Maguire address@hidden
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