On OS X 10.12, I get an intermittent failure with matrix_integer_dense.pyx. The end of the failure:
sage: A = random_matrix(ZZ, 4, 4) ## line 4266 ## sage: B = random_matrix(ZZ, 2, 3) ## line 4267 ## sage: B._solve_flint(A) ## line 4268 ## sage: A._solve_flint(B, right=False) ## line 4272 ## sage: A._solve_flint(B, right=True) ## line 4276 ## sage: A = random_matrix(ZZ, 2000, 2000) ## line 4283 ## sage: B = random_matrix(ZZ, 2000, 2000) ## line 4284 ## sage: t0 = walltime() ## line 4285 ## sage: alarm(2); A._solve_flint(B) # long time ## line 4286 ## sage: t = walltime(t0) ## line 4290 ## sage: t < 10 or t ## line 4291 ## True sage: sig_on_count() # check sig_on/off pairings (virtual doctest) ## line 4297 ## 0 sage: t = ModularSymbols(11,sign=1).hecke_matrix(2) ## line 4546 ## ------------------------------------------------------------------------ 0 signals.so 0x0000000109732005 print_backtrace + 37 ------------------------------------------------------------------------ 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. If I run the test 10 times (with "sage -t --long --global-iterations=10 src/sage/matrix/matrix_integer_dense.pyx", I typically get 1 failure, sometimes 2, sometimes 0. Has anyone else seen this? John On Monday, October 31, 2016 at 7:51:38 AM UTC-7, Volker Braun wrote: > > As always, you can get the latest beta version from the "develop" git > branch. Alternatively, the self-contained source tarball is at > http://www.sagemath.org/download-latest.html > > de71261 Updated SageMath version to 7.5.beta1 > a7c0eae Trac #21765: Simplify relative_discriminant() using idealhnf > 8bb7f6e Trac #21763: py3 get rid of xrange in matrix folder > 98d0f1b Trac #21761: Bug in the Chow ring of a matroid > 038e6ad Trac #21759: Fix build of coxeter3 > 04c1466 Trac #21757: Bug in reflection group to_matrix > 1a7daaf Trac #21751: py3 get rid of xrange in polynomials > 7de7e32 Trac #21743: Crash when stdin is not a tty > 4a5fc58 Trac #21738: %attach has a weird behaviour when dealing with > SyntaxError > 41e9f60 Trac #21721: Standardize patches in fricas, frobby > 614c841 Trac #21658: TestSuite: test that __new__ doesn't crash > 9bb5f6f Trac #21651: Segfault in PartitionRefinementLinearCode > a759a04 Trac #21646: Devel manual about docstrings > 6614f5f Trac #21606: LatticePoset: Add Alan Day's doubling construction > e130f98 Trac #21082: Prompting about experimental packages: `sage -i -y`, > `sage -i -n` > 1fb542e Trac #20596: Upgrade to Cython 0.25.1 > 9cb8eb8 Trac #18843: Differentiable manifolds: vector fields and tensor > fields > d6baa17 Trac #21717: Move rational_reconstruction to arith > a59e7e8 Trac #21455: Document that coth et al now work with wildcards > 681b779 Trac #21705: Fix GCC warnings in PARI interface > 27fa09d Trac #21674: Doctest continuation marked / rings, misc > 97b90eb Trac #21652: Uppercasing "seealso" > 564b397 Trac #21650: Doctest continuation marker / graphs > dbf9e6e Trac #21648: Doctest continuation marker / matrix > 5af76d6 Trac #21599: Work around non-deterministic failure of uncompress > on Windows > f10eb6d Trac #21584: Random lattice: element numbering should start from > zero > 81002f6 Trac #21553: Blacklist PARI's allocatemem method in auto_gen > 65ebe8d Trac #21248: Reduce Forms from Stoll and Cremona > 94cb16b Trac #21730: Add dedicated symbolic series tests > acff346 Trac #21728: Make Sage run-time dependency of fpylll > bcef947 Trac #21722: Fix build of gap3 > 4969963 Trac #21715: Update database_cremona_ellcurve > 32d4a6c Trac #21710: removing last traces of sagedev from developer manual > a8be7a9 Trac #21706: Fix autotools/texinfo/ncurses problem, change > autotools package from experimental to optional > e817d23 Trac #21704: bliss does not support multiple edges > f4ed683 Trac #21699: Change latte_int package type to optional > f9c355e Trac #21698: Change python3 package type to experimental > dfe6b11 Trac #21697: Upgrade pyzmq to version 16.0.0 > 0ee6abe Trac #21696: fix the use of inline in multiple .pxd files > f91bb46 Trac #21692: fixing jones database optional doctests > 45152c9 Trac #21688: Remove non-existing site_packages directory from > PYTHONPATH > faa90b2 Trac #21687: Avoid bare "except:" statements > d2aa474 Trac #21685: When building Python on OS X, test whether _scproxy > can be imported successfully. > 998765a Trac #21684: implement the bhz poset > f6ff4fe Trac #21677: py3 get rid of xrange in various places > c8b7472 Trac #21671: Bug in infinite LS paths crystal operators > 8edb138 Trac #21666: Changes to Posets.DivisorLattice() > 4b5b572 Trac #21664: Fix initialization of integer and rational vectors > 31776e9 Trac #21663: Allow singular_ring_delete(NULL) > 915f2a1 Trac #21662: Fix initialization of ComplexIntervalFieldElement > 55eac20 Trac #21660: Upgrade MPFR to version 3.1.5 > 26d4124 Updated SageMath version to 7.5.beta0 > > -- You received this message because you are subscribed to the Google Groups "sage-release" group. 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