Could you try the steps at http://stackoverflow.com/a/11369475/2097780? They allow you to get a better idea of where libc is crashing. Cyd Haselton <chaselton at gmail.com> wrote: >Managed to get this out of logcat: >F(11914) Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread >11914 (python) (libc) > >[ 01-29 19:30:55.855 23373:23373 F/libc ] >Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 23373 (python) > >Less detail than strace but it seems to be that python is segfaulting >libc... > >On Wed, Jan 28, 2015 at 11:23 AM, Ryan Gonzalez <rymg19 at gmail.com> >wrote: >> On Wed, Jan 28, 2015 at 10:43 AM, Guido van Rossum <guido at python.org> >wrote: >>> >>> What I see in the strace: >>> >>> ... load libpython3.4m.so.1.0 >>> ... load libm >>> ... open /dev/__properties__ and do something to it (what?) >>> ... get current time >>> ... allocate memory >>> ... getuid >>> ... segfault >>> >>> That's not a lot to go on, but it doesn't look as if it has started >to >>> load modules yet. >>> >>> Does /dev/__properties__ ring a bell? Not to me. >>> >> >> >https://android.googlesource.com/platform/system/core/+/tools_r22/init/property_service.c >> is the code that works with that file. >> >> This explains it a bit (slides 24-29). Looks like something to do >with >> interprocess communication. Likely has nothing to do with Python >itself. >> >> Maybe this would be useful? >> >>> >>> That stack trace would be really helpful. >>> >>> On Wed, Jan 28, 2015 at 8:34 AM, Cyd Haselton <chaselton at gmail.com> >wrote: >>>> >>>> Apologies...I'm not sure what a stack track is, but I do have the >>>> strace. Nearest I can tell, it happens due to an open call, though >I >>>> am probably wrong. >>>> Attaching the strace output to this email. I'm going to head back >to >>>> the documentation and to back out of some Android-related changes >in >>>> _localemodule.c >>>> >>>> On Wed, Jan 28, 2015 at 9:43 AM, Guido van Rossum ><guido at python.org> >>>> wrote: >>>> > There could be a million differences relevant (unicode, ints, >...). >>>> > Perhaps >>>> > the importlib bootstrap is failing. Perhaps the dynamic loading >code >>>> > changed. Did you get a stack track? (IIRC strace shows a syscall >trace >>>> > -- >>>> > also useful, but doesn't tell you precisely how it segfaulted.) >>>> > >>>> > On Wed, Jan 28, 2015 at 6:43 AM, Cyd Haselton ><chaselton at gmail.com> >>>> > wrote: >>>> >> >>>> >> All, >>>> >> I recently ditched my attempts to port Python 2.7.8 to Android >in >>>> >> favor of Python 3.4.2. Unfortunately, after using the same >configure >>>> >> options in the same environment, and modifying the setup.py as >needed, >>>> >> the newly built binary throws a segfault when the >generate-posix-vars >>>> >> portion of the build is reached...and when it is run as well >(i.e. >>>> >> ./python --help, ./python -E -S -m sysconfig, or similar) >>>> >> >>>> >> I took a strace of ./python, however I'm a bit lost when >reviewing it. >>>> >> Any ideas as to what may be going on...i.e. why Python 2.7 works >but >>>> >> 3.x throws a segfault? >>>> >> >>>> >> Thanks in advance, >>>> >> Cyd >>>> >> _______________________________________________ >>>> >> Python-Dev mailing list >>>> >> Python-Dev at python.org >>>> >> https://mail.python.org/mailman/listinfo/python-dev >>>> >> Unsubscribe: >>>> >> >https://mail.python.org/mailman/options/python-dev/guido%40python.org >>>> > >>>> > >>>> > >>>> > >>>> > -- >>>> > --Guido van Rossum (python.org/~guido) >>> >>> >>> >>> >>> -- >>> --Guido van Rossum (python.org/~guido) >>> >>> _______________________________________________ >>> Python-Dev mailing list >>> Python-Dev at python.org >>> https://mail.python.org/mailman/listinfo/python-dev >>> Unsubscribe: >>> >https://mail.python.org/mailman/options/python-dev/rymg19%40gmail.com >>> >> >> >> >> -- >> Ryan >> If anybody ever asks me why I prefer C++ to C, my answer will be >simple: >> "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think that >was >> nul-terminated." >> Personal reality distortion fields are immune to contradictory >evidence. - >> srean >> Check out my website: http://kirbyfan64.github.io/ -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. Check out my website: http://kirbyfan64.github.io/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20150129/c974cf05/attachment-0001.html>
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