This doesn't seem to happen on OS X 10.6, but on linux (Ubuntu 9.10,
on an intel i7 860) I get:

sudo dmesg |grep pari
[1137442.823450] python[25794]: segfault at 429 ip 00007fba72ee2de1 sp
00007fffa33e3530 error 4 in libpari-gmp.so.2[7fba72cee000+2c6000]
[1352579.933964] python[17881] general protection ip:7f28db8a3de1 sp:
7fff4734ea20 error:0 in libpari-gmp.so.2[7f28db6af000+2c6000]
[3048340.378550] python[4559]: segfault at 1500000073 ip
00007fa58d664de1 sp 00007fff0a77ba50 error 4 in libpari-gmp.so.
2[7fa58d470000+2c6000]

-Marshall

On Oct 14, 4:09 am, Jan Groenewald <j...@aims.ac.za> wrote:
> Hi
>
> On Wed, Oct 13, 2010 at 10:35:44AM +0200, Jan Groenewald wrote:
> > > r...@capepoint:/usr/local/src#sage -t 
> > > "devel/sage/sage/interfaces/sage0.py"              
> > > sage -t  "devel/sage/sage/interfaces/sage0.py"              
> > > [8.8 s]
> > > ----------------------------------------------------------------------
> > > All tests passed!
> > > Total time for all tests: 8.8 seconds
> > > r...@capepoint:/usr/local/src#dmesg |grep pari
> > > [ 8217.960337] python[12786]: segfault at 829 ip 00007feeafa24fa1 sp 
> > > 00007ffff3d54b90 error 4 in libpari-gmp.so.2[7feeaf830000+2c6000]
>
> This problem persists with
> 1) a newly compiled sage 4.5.3 (64bit) without the 4 patches and without any 
> optional packages
> 2) a precompiled tarball 
> sage-4.5.3-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux
>
> r...@capepoint:/usr/local/src/sage-4.5.3-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux#dmesg
>  |grep pari|wc -l
> 37
> r...@capepoint:/usr/local/src/sage-4.5.3-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux#sage
>  -t "devel/sage/sage/interfaces/sage0.py"
> sage -t  "devel/sage/sage/interfaces/sage0.py"              
> [8.9 s]
>
> ----------------------------------------------------------------------
> All tests passed!
> Total time for all tests: 8.9 seconds
> r...@capepoint:/usr/local/src/sage-4.5.3-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux#dmesg
>  |grep pari|wc -l38
> r...@capepoint:/usr/local/src/sage-4.5.3-linux-64bit-ubuntu_10.04.1_lts-x86_64-Linux#
>
> Perhaps someone can test this on 32bit, another CPU, etc. I will get
> a hold of some laptops for other CPU testing. Can anyone else even
> reproduce this?
>
> regards,
> Jan
>
> --
>    .~.
>    /V\     Jan Groenewald
>   /( )\    www.aims.ac.za
>   ^^-^^

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