That's a good point. It looks like 5.1.0. I will try rebuilding from scratch with SAGE_INSTALL_GCC=yes, since that's easier than actually trying to figure out what's going on. (Also, it is past time for me to update gcc, since it looks like I can easily have 6.1.0 on this system.) I will report back in 90 minutes, unless I don't, in which case I'll report back in 10 to 24 hours.
On Sun, Sep 25, 2016 at 11:31 PM, Dima Pasechnik <dimp...@gmail.com> wrote: > Most probably gcc version used to build Sage is also quite important... > > > On Sunday, September 25, 2016 at 10:16:23 PM UTC, Jonathan Bober wrote: > >> jb12407@lmfdb5:~$ lscpu >> Architecture: x86_64 >> CPU op-mode(s): 32-bit, 64-bit >> Byte Order: Little Endian >> CPU(s): 64 >> On-line CPU(s) list: 0-63 >> Thread(s) per core: 2 >> Core(s) per socket: 8 >> Socket(s): 4 >> NUMA node(s): 8 >> Vendor ID: AuthenticAMD >> CPU family: 21 >> Model: 2 >> Model name: AMD Opteron(tm) Processor 6380 >> Stepping: 0 >> CPU MHz: 2500.065 >> BogoMIPS: 4999.42 >> Virtualization: AMD-V >> L1d cache: 16K >> L1i cache: 64K >> L2 cache: 2048K >> L3 cache: 6144K >> NUMA node0 CPU(s): 0-7 >> NUMA node1 CPU(s): 8-15 >> NUMA node2 CPU(s): 16-23 >> NUMA node3 CPU(s): 24-31 >> NUMA node4 CPU(s): 32-39 >> NUMA node5 CPU(s): 40-47 >> NUMA node6 CPU(s): 48-55 >> NUMA node7 CPU(s): 56-63 >> >> (Old software...) >> >> jb12407@lmfdb5:~$ lsb_release -a >> LSB Version: :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0- >> noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0- >> amd64:printing-4.0-noarch >> Distributor ID: Scientific >> Description: Scientific Linux release 6.8 (Carbon) >> Release: 6.8 >> Codename: Carbon >> >> jb12407@lmfdb5:~$ uname -r >> 2.6.32-573.3.1.el6.x86_64 >> >> On Sun, Sep 25, 2016 at 11:03 PM, Dima Pasechnik <dim...@gmail.com> >> wrote: >> >>> >>> >>> On Sunday, September 25, 2016 at 9:33:42 PM UTC, Jonathan Bober wrote: >>>> >>>> I'm getting a segfault on the current development branch of sage (see >>>> below). Is this a known issue and/or effecting anyone else? >>>> >>>> This does not happen for me in Sage 7.3, although it does happen if I >>>> try to go "back in time" with a 'git checkout 7.3' and then rebuild. So >>>> just to be certain I built a few copies from scratch. >>>> >>>> This is from a doctest in src/doc/*/a_tour_of_sage/index.rst, easily >>>> reproducible. (Notice the * there. I guess Sage separately tests the >>>> documentation in each language...) >>>> >>>> sage: m = random_matrix(RDF,500) >>>> sage: m.eigenvalues() >>>> ------------------------------------------------------------ >>>> ------------ >>>> /data/home/jb12407/sources/sage/local/lib/python2.7/site-pac >>>> kages/cysignals/signals.so(+0x4635)[0x7f6d34da4635] >>>> /data/home/jb12407/sources/sage/local/lib/python2.7/site-pac >>>> kages/cysignals/signals.so(+0x4685)[0x7f6d34da4685] >>>> /data/home/jb12407/sources/sage/local/lib/python2.7/site-pac >>>> kages/cysignals/signals.so(+0x7107)[0x7f6d34da7107] >>>> /lib64/libpthread.so.0[0x30f700f7e0] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> daxpy_k+0x48)[0x7f6d29e9eab8] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0(+ >>>> 0xc9c3e)[0x7f6d29ca9c3e] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> exec_blas+0xd9)[0x7f6d29e590f9] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> dtrmv_thread_NLU+0x204)[0x7f6d29ca9f34] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> dtrmv_+0x155)[0x7f6d29c67b75] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> dlahr2_+0x451)[0x7f6d2a0eecb1] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> dgehrd_+0x47d)[0x7f6d2a0b6c8d] >>>> /data/home/jb12407/sources/sage/local/lib/libopenblas.so.0( >>>> dgeev_+0x430)[0x7f6d2a0b1470] >>>> /data/home/jb12407/sources/sage/local/lib/python2.7/site-pac >>>> kages/scipy/linalg/_flapack.so(+0x2cde7)[0x7f66808b4de7] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyObject_Call+0x43)[0x7f6d4244aed3] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x388a)[0x7f6d424fd5ba] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(+0x839fc)[0x7f6d4247b9fc] >>>> /data/home/jb12407/sources/sage/local/lib/python2.7/site-pac >>>> kages/sage/matrix/matrix_double_dense.so(+0x9949)[0x7f6682759949] >>>> /data/home/jb12407/sources/sage/local/lib/python2.7/site-pac >>>> kages/sage/matrix/matrix_double_dense.so(+0x5161b)[0x7f66827a161b] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5331)[0x7f6d424ff061] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCode+0x19)[0x7f6d42500789] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x509e)[0x7f6d424fedce] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalFrameEx+0x5654)[0x7f6d424ff384] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCodeEx+0x81c)[0x7f6d4250066c] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyEval_EvalCode+0x19)[0x7f6d42500789] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyRun_FileExFlags+0x8a)[0x7f6d42523e5a] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(PyRun_SimpleFileExFlags+0xd7)[0x7f6d42525207] >>>> /data/home/jb12407/sources/sage/local/lib/libpython2.7.so.1. >>>> 0(Py_Main+0xc3e)[0x7f6d4253b70e] >>>> /lib64/libc.so.6(__libc_start_main+0xfd)[0x30f6c1ed1d] >>>> python[0x4006f1] >>>> ------------------------------------------------------------ >>>> ------------ >>>> Attaching gdb to process id 56935. >>>> GNU gdb (GDB) Red Hat Enterprise Linux (7.2-90.el6) >>>> Copyright (C) 2010 Free Software Foundation, Inc. >>>> License GPLv3+: GNU GPL version 3 or later < >>>> http://gnu.org/licenses/gpl.html> >>>> This is free software: you are free to change and redistribute it. >>>> There is NO WARRANTY, to the extent permitted by law. Type "show >>>> copying" >>>> and "show warranty" for details. >>>> This GDB was configured as "x86_64-redhat-linux-gnu". >>>> For bug reporting instructions, please see: >>>> <http://www.gnu.org/software/gdb/bugs/>. >>>> (gdb) Hangup detected on fd 0 >>>> error detected on stdin >>>> >>>> Your system GDB is an old version that does not work with pipes >>>> Install gdb for enhanced tracebacks. >>>> ------------------------------------------------------------ >>>> ------------ >>>> Unhandled SIGSEGV: A segmentation fault occurred. >>>> This probably occurred because a *compiled* module has a bug >>>> in it and is not properly wrapped with sig_on(), sig_off(). >>>> Python will now terminate. >>>> ------------------------------------------------------------ >>>> ------------ >>>> >>>> >>> I guess more details are needed, like CPU type (what does lscpu tell?) >>> >>> For me, on i7-6600U CPU @ 2.60GHz, it works: >>> >>> sage: m = random_matrix(RDF,500) >>> sage: e=m.eigenvalues() >>> sage: len(e) >>> 500 >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "sage-devel" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to sage-devel+...@googlegroups.com. >>> To post to this group, send email to sage-...@googlegroups.com. >>> Visit this group at https://groups.google.com/group/sage-devel. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To post to this group, send email to sage-devel@googlegroups.com. > Visit this group at https://groups.google.com/group/sage-devel. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "sage-devel" group. 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