This has now happened on a second machine, OS X 10.13.4, latest Xcode.
Fails in parallel, fails on its own, fails when upgrading an old Sage,
fails when building from a new rc3 tarball. I don't think I built rc2 but I
think I did build rc1 and didn't have this problem.
sage -t --long src/sage/doctest/external.py
Killed due to abort
**********************************************************************
Tests run before process (pid=46054) failed:
sage: from sage.doctest.external import has_internet ## line 38 ##
sage: has_internet() # random ## line 39 ##
objc[46054]: +[__NSPlaceholderDate initialize] may have been in progress in
another thread when fork() was called.
objc[46054]: +[__NSPlaceholderDate initialize] may have been in progress in
another thread when fork() was called. We cannot safely call it or ignore
it in the fork() child process. Crashing instead. Set a breakpoint on
objc_initializeAfterForkError to debug.
------------------------------------------------------------------------
0 signals.so 0x00000001019a2548 print_backtrace
+ 40
1 ??? 0x6c70704118105f6b 0x0 +
7813868778366721899
------------------------------------------------------------------------
Unhandled SIGABRT: An abort() 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.
------------------------------------------------------------------------
**********************************************************************
----------------------------------------------------------------------
sage -t --long src/sage/doctest/external.py # Killed due to abort
----------------------------------------------------------------------
On Thursday, April 19, 2018 at 7:54:22 AM UTC-7, John H Palmieri wrote:
>
> OS X, latest Xcode. Built from scratch, also separately built by upgrading
> an earlier version. Both give doctest failures:
>
> sage -t --long src/sage/doctest/external.py # Killed due to abort
> sage -t --long src/sage/combinat/designs/ext_rep.py # Killed due to abort
>
>
>
> On Monday, April 16, 2018 at 3:34:24 PM 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
>>
>> a9d274b933 (tag: 8.2.rc3, trac/develop) Updated SageMath version to
>> 8.2.rc3
>> d85d03cfc3 Trac #25051: Add DESTDIR support to additional Python
>> packages; upgrade pip to latest patch release
>> ab932bd4d3 Trac #23969: Downgrade cryptominisat to experimental
>> 9bac572eb4 Trac #25107: Ignored OSErrors in test output on Cygwin
>> 3d4ffb3923 Trac #25092: sage --gdb does not start due to SIGFPE
>> f150587302 Trac #25137: Temporarily skip the test that causes #24986
>> 303efaa461 (tag: 8.2.rc2) Updated SageMath version to 8.2.rc2
>>
>>
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