Re: cvs head initdb hangs on unixware

From: ohp(at)pyrenet(dot)fr
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>, pgsql-hackers list <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: cvs head initdb hangs on unixware
Date: 2008-12-09 16:47:47
Message-ID: Pine.UW2.4.63.0812091744140.29358@sun.pyrenet
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On Tue, 9 Dec 2008, Tom Lane wrote:

> Date: Tue, 09 Dec 2008 09:23:06 -0500
> From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
> To: ohp(at)pyrenet(dot)fr
> Cc: Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>,
> Zdenek Kotala <Zdenek(dot)Kotala(at)Sun(dot)COM>,
> pgsql-hackers list <pgsql-hackers(at)postgresql(dot)org>
> Subject: Re: [HACKERS] cvs head initdb hangs on unixware
>
> ohp(at)pyrenet(dot)fr writes:
>> Guess what! with the fprintf .. descending node... in place, everything
>> goes well. The optimizer definitly does something weird along the
>> definition/assignement of leftok/rightok..
>
> Hmm, so the problem is in that second loop. The trick is to pick some
> reasonably non-ugly code change that makes the problem go away.
>
> The first thing I'd try is to get rid of the overly cute optimization
>
> int rightnodeno = leftnodeno + 1;
>
> and make it just read
>
> int rightnodeno = rightchild(nodeno);
>
> If that doesn't work, we might try refactoring the code enough to get
> rid of the goto, but that looks a little bit tedious.
>
> regards, tom lane
>
I tried that and moving leftok,rightok declaration outside the loop, and
refactor the assignement code of leftok, rightok . nothing worked!

Regards,
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