[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Tim Peters
Tim Peters added the comment: Yup, a reboot & rebuild fixed it. I think stray processes left over from older test runs were preventing a rebuild from replacing my debug DLL. Gotta love Windows ;-) -- resolution: -> fixed stage: -> committed/rejected status: open -> closed type: ->

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Tim Peters
Tim Peters added the comment: Zach, that could be - my box is *really* screwed up now - going to reboot and try again. -- ___ Python tracker ___

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Zachary Ware
Zachary Ware added the comment: Hmmm, that's odd; I can't reproduce on Windows 7 from 2a1de922651a, but I can from e39db21df580. -- ___ Python tracker ___ __

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Tim Peters
Tim Peters added the comment: Zach, after pulling again and rebuilding, still failing in what looks like the same way. -- ___ Python tracker ___

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Tim Peters
Tim Peters added the comment: BTW, I believe 0x is what MS's debug libraries use to overwrite memory that's already been free()'d - akin to PyMalloc's "DEADBYTE". -- ___ Python tracker

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Zachary Ware
Changes by Zachary Ware : -- nosy: +alexandre.vassalotti ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https:

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Zachary Ware
Zachary Ware added the comment: I suspect you pulled at just the wrong time and caught e39db21df580, which Alexandre has already reverted in 2a1de922651a. -- nosy: +zach.ware ___ Python tracker ___

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Tim Peters
Tim Peters added the comment: Hmm. Looks like it's dying in gcmodule.c's visit_decref(), here: if (PyObject_IS_GC(op)) { So it may or may not trigger depending on the vagaries of when cyclic gc runs. For op, op->_ob_next, _ob_prev, ob_refcnt, and ob_type are all 0x. That doesn'

[issue19779] test_concurrent_futures crashes on 32-bit Windows Vista

2013-11-25 Thread Tim Peters
New submission from Tim Peters: Worked OK yesterday, using current default branch in all cases. C:\Code\Python\PCbuild>.\\python_d -Wd -E -bb ../lib/test/regrtest.py test_concurrent_futures [1/1] test_concurrent_futures Fatal Python error: Segmentation fault Current thread 0x0590 (most re