Re: out of memory during query execution

Hello,

According to several answers, my problem could be due to the 32 bits build.
I hope I will try to make a 64 bits build in January, in order to give
you more explanations about the possible errors I will encounter.

I keep preciously your advice, and I hope I will be able to give you an
answer in January.

Thank you.
Regards,
Alexandra DANTE

Seneca Cunningham a écrit :

>DANTE ALEXANDRA wrote:
>
>
>>The person is charge of building PostGreSQL 8.1.0 has done a 32 bit
>>build and has used the "cc_r" compiler.
>>This person does not succeed to build PostGreSQL 8.1.0 with "gcc" and 64
>>bits. Unfortunatly, I don't have the errors or the logs of the 64 bits
>>build and I can't tell you what error occurs.
>>
>>
>
>Too bad, I may have been able to determine what had happened with the
>gcc build.
>
>
>
>>The build done was realized in 32 bits, with the cc_r compiler.
>>To build POstGreSQL, a rpm was done and the ".spec" file contained the
>>following instructions :
>>export OBJECT_MODE=32
>>./configure CC=/usr/vac/bin/cc_r CFLAGS="-O2 -qmaxmem=-1 -qsrcmsg
>>-qlargepage" --enable-thread-safety
>>--without-readline --prefix=%{buildroot}%{prefix}
>>gmake -j 4
>>unset OBJECT_MODE
>>
>>Do you think that my problems of "out of memory" are due to the 32 bits
>>build ?
>>Do you think that I must build PostGreSQL wih 64 bits to solve this error ?
>>
>>
>
>It is quite likely that the out of memory errors are due to your use of
>the default 32-bit memory model. In that model, a single 256MB memory
>segment contains your heap, stack, thread stacks, and other per-process,
>non-shared-library data. Switching to 64-bit would stop the errors if
>this is true. It is also possible to adjust the amount of space
>available to a 32-bit process' heap with the -bmaxdata linker option,
>but the largest heap size that I would consider safe with 32-bit is 2GB
>and comes with the cost of reducing the amount of shared memory
>available to the process.
>
>Setting OBJECT_MODE to 64 before the ./configure and gmake should result
>in a 64-bit build, but I don't have a copy of IBM's compiler to test
>with. I would be interested in seeing the errors output by the 64-bit
>gcc build if another build is attempted.
>
>
>