primecount crashes Sage on 32bit system

[tmonteil]

Preparing 8.4 release of SDL (32bit system), i noticed that the following crashes Sage when primecount package is installed:

sage: from sage.interfaces.primecount import prime_pi
sage: prime_pi(1000)
------------------------------------------------------------------------
/opt/sagemath/sage-8.4/local/lib/python2.7/site-packages/cysignals/signals.so(+0x5192)[0xb6bba192]
/opt/sagemath/sage-8.4/local/lib/python2.7/site-packages/cysignals/signals.so(+0x523c)[0xb6bba23c]
/opt/sagemath/sage-8.4/local/lib/python2.7/site-packages/cysignals/signals.so(+0x8680)[0xb6bbd680]
linux-gate.so.1(__kernel_sigreturn+0x0)[0xb7730d04]
/opt/sagemath/sage-8.4/local/lib/libprimecount.so.4(_ZNK10primecount5Sieve5countEyy+0x2e8)[0x87db0368]
/opt/sagemath/sage-8.4/local/lib/libprimecount.so.4(_ZN10primecount7pi_lmo5Ex+0xcf1)[0x87dcbbd1]
/opt/sagemath/sage-8.4/local/lib/libprimecount.so.4(_ZN10primecount2piExi+0x4b)[0x87dbadbb]
/opt/sagemath/sage-8.4/local/lib/libprimecount.so.4(_ZN10primecount2piEx+0x26)[0x87dbb7e6]
/opt/sagemath/sage-8.4/local/lib/python2.7/site-packages/sage/interfaces/primecount.so(+0x4c2b)[0x87decc2b]
/opt/sagemath/sage-8.4/local/lib/python2.7/site-packages/sage/interfaces/primecount.so(+0x5cc1)[0x87dedcc1]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x632a)[0xb75fc0ca]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCode+0x2e)[0xb75fff0e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7395)[0xb75fd135]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7077)[0xb75fce17]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7077)[0xb75fce17]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7077)[0xb75fce17]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7077)[0xb75fce17]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7077)[0xb75fce17]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalFrameEx+0x7077)[0xb75fce17]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCodeEx+0x7fe)[0xb75ffd9e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyEval_EvalCode+0x2e)[0xb75fff0e]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyRun_FileExFlags+0x77)[0xb76234a7]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyRun_SimpleFileExFlags+0xdd)[0xb7624a0d]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(PyRun_AnyFileExFlags+0x67)[0xb7625137]
/opt/sagemath/sage-8.4/local/lib/libpython2.7.so.1.0(Py_Main+0xcfd)[0xb763c05d]
/opt/sagemath/sage-8.4/local/bin/python2(main+0x27)[0x4a3607]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf6)[0xb72cf286]
/opt/sagemath/sage-8.4/local/bin/python2(+0x645)[0x4a3645]
------------------------------------------------------------------------
Attaching gdb to process id 24794.

I attach the corresponding gdb trace as well as the related doctest log.

[vdelecroix]

It would be more appropriate to reproduce outside of Sage and make a report ​upstream.

[vdelecroix]

And BTW, primecount 4.4 is out.

[vdelecroix]

Replying to vdelecroix:

It would be more appropriate to reproduce outside of Sage and make a report ​upstream.

@thierry: could you try the following in a Sage shell (sage -sh)

$ primecount 1000

[vdelecroix]

And the trace is irrelevant since primecount has not been compiled with gdb support. We only see Cython stuff. Apparently, running cmake with the additional option -DCMAKE_BUILD_TYPE=Debug should set the compiler flag properly. Could you try it?

[dimpase]

at least this works at the command line now (from the git version of primecount):

$ uname -a
Linux arando 4.15.0-117-generic #118-Ubuntu SMP Fri Sep 4 20:00:48 UTC 2020 i686 i686 i686 GNU/Linux
$ primecount 1000
168

[dimpase]

I'll check that the interface works, too - it will take a while to build on this old box.

[mkoeppe]

Let's close it as outdated in view of the update ticket #25009.

Portability testing (TBD) of #25009 also includes tests on several 32bit platforms.

[dimpase]

testing on #25009 shows that it's all good now on 32-bit, and this may be closed.