On my computer I get a segfault just doing : ---------------------------------------------------------------------- | Sage Version 4.7.rc1, Release Date: 2011-04-30 | | Type notebook() for the GUI, and license() for information. | ---------------------------------------------------------------------- ********************************************************************** * * * Warning: this is a prerelease version, and it may be unstable. * * * ********************************************************************** sage: K = GF(1<<16,'a'); L = GF(1<<32,'b') sage: K.Hom(L)[0] Finite Field in a of size 2^16 /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libcsage.so(print_backtrace +0x31)[0x7f86df446df2] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libcsage.so(sigdie+0x14) [0x7f86df446e24] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/ libcsage.so(sage_signal_handler+0x1d3)[0x7f86df446a39] /lib/libpthread.so.0(+0xef60)[0x7f86e48b2f60] /lib/libc.so.6(gsignal+0x35)[0x7f86e3eeb165] /lib/libc.so.6(abort+0x180)[0x7f86e3eedf70] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libcsage.so(init_csage+0x0) [0x7f86df4478ac] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libntl.so(_ZN3NTL5ErrorEPKc +0x1f)[0x7f86dec3d35f] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/ libntl.so(_ZN3NTL5buildERNS_12GF2XArgumentERKNS_4GF2XERKNS_11GF2XModulusEl +0xb4)[0x7f86deb66b74] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/ libntl.so(_ZN3NTL13ProjectPowersERNS_4GF2XERKS0_lS3_RKNS_11GF2XModulusE +0xab)[0x7f86deb677ab] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/ libntl.so(_ZN3NTL12DoMinPolyModERNS_4GF2XERKS0_RKNS_11GF2XModulusElS3_ +0x37)[0x7f86deb68117] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/ libntl.so(_ZN3NTL12IrredPolyModERNS_4GF2XERKS0_RKNS_11GF2XModulusEl +0x53)[0x7f86deb685f3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/python2.6/site-packages/ sage/rings/finite_rings/element_ntl_gf2e.so(+0xe7f3)[0x7f86ca3897f3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/python2.6/site-packages/ sage/rings/finite_rings/element_ntl_gf2e.so(+0xf706)[0x7f86ca38a706] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/python2.6/site-packages/ sage/rings/finite_rings/finite_field_base.so(+0xdbbd)[0x7f86cffc5bbd] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/python2.6/site-packages/ sage/rings/morphism.so(+0xf09f)[0x7f86d597609f] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0xa10b8)[0x7f86e4b610b8] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x3a79)[0x7f86e4ba16a9] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0x70c12)[0x7f86e4b30c12] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0x5794f)[0x7f86e4b1794f] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0xa54ec)[0x7f86e4b654ec] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_CallObjectWithKeywords+0x47)[0x7f86e4b9d637] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/python2.6/site-packages/ sage/structure/parent.so(+0x13e60)[0x7f86dbf36e60] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_CallObjectWithKeywords+0x47)[0x7f86e4b9d637] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0x6069a)[0x7f86e4b2069a] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/python2.6/site-packages/ sage/structure/parent_gens.so(+0x7753)[0x7f86d9273753] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x4ef5)[0x7f86e4ba2b25] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5a8a)[0x7f86e4ba36ba] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0x70b26)[0x7f86e4b30b26] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0x5794f)[0x7f86e4b1794f] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyObject_Call+0x53)[0x7f86e4b0acf3] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(+0xa3e84)[0x7f86e4b63e84] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x1933)[0x7f86e4b9f563] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCode+0x32)[0x7f86e4ba4932] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x4ccb)[0x7f86e4ba28fb] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5364)[0x7f86e4ba2f94] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5364)[0x7f86e4ba2f94] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5a8a)[0x7f86e4ba36ba] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5364)[0x7f86e4ba2f94] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5364)[0x7f86e4ba2f94] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalFrameEx+0x5364)[0x7f86e4ba2f94] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCodeEx+0x879)[0x7f86e4ba4839] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyEval_EvalCode+0x32)[0x7f86e4ba4932] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyRun_FileExFlags+0xb0)[0x7f86e4bc6d10] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so. 1.0(PyRun_SimpleFileExFlags+0xdf)[0x7f86e4bc774f] /home/jp/boulot/sage/sage-4.7.rc1/local/lib/libpython2.6.so.1.0(Py_Main +0xb23)[0x7f86e4bd4a03] /lib/libc.so.6(__libc_start_main+0xfd)[0x7f86e3ed7c4d] python[0x4006a1]
------------------------------------------------------------------------ Unhandled SIGABRT: An abort() occurred in Sage. This probably occurred because a *compiled* component of Sage has a bug in it and is not properly wrapped with sig_on(), sig_off(). You might want to run Sage under gdb with 'sage -gdb' to debug this. Sage will now terminate. This does not happen for values smaller than 16, but does also happen for bigger values. This happens when the morphisms get checked in sage.rings.morphism at the line: t = parent.domain()._is_valid_homomorphism_(parent.codomain(), im_gens) potentially deeper. If I add something silly as print parent.codomain() just before that line it does not segfault anymore... I'm using sage 4.7.rc1 on debian amd64, gcc 4.6. Can anybody reproduce that behavior, so we should open a trac ticket ? I could not find anything similar here or on trac. I'll continue investigating it anyway. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
