[Bug 1298824] Re: libffi 3.1~rc1 regression: crashes on i386; python3.4 crashed with SIGSEGV in g_callable_info_free_closure()

[Launchpad Bug Tracker]

This bug was fixed in the package libffi - 3.1~rc1+r3.0.13-12

---------------
libffi (3.1~rc1+r3.0.13-12) trusty; urgency=medium

  * Revert 3.1~rc1-2 upload, it causes an unannounced ABI break on at least
    i386, causing lots of segfaults. (LP: #1298824)
 -- Martin Pitt <martin.pitt at ubuntu.com>   Fri, 28 Mar 2014 09:55:09 +0100

** Changed in: libffi (Ubuntu Trusty)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1298824

Title:
  libffi 3.1~rc1 regression: crashes on i386; python3.4 crashed with
  SIGSEGV in g_callable_info_free_closure()

Status in “libffi” package in Ubuntu:
  Fix Released
Status in “libffi” source package in Trusty:
  Fix Released

Bug description:
  https://launchpad.net/ubuntu/+source/libffi/3.1~rc1-2 has a regression
  which causes lots of crashes on i386. This particular crash report is
  a (local) retrace of https://jenkins.qa.ubuntu.com/job/trusty-adt-
  gtk-3.0/109/ARCH=i386,label=adt/ but this affects all reverse
  depdencies of libffi, such as

    https://jenkins.qa.ubuntu.com/job/trusty-adt-python-cffi/37/ARCH=i386,label=adt
    https://jenkins.qa.ubuntu.com/job/trusty-adt-gtk-3.0/109/ARCH=i386,label=adt/
    https://jenkins.qa.ubuntu.com/job/trusty-adt-ruby-ffi/26/ARCH=i386,label=adt/

  and gvfs, umockdev, ubiquity, etc.

  I reproduced this in a local trusty i386 schroot and confirm that
  downgrading libffi6 to the previous version  3.0.13-12 re-fixes
  things.

  So far a small reproducer is:

    sudo apt-get install python3-gi gir1.2-gtk-3.0 xvfb
    xvfb-run python3 -c 'from gi.repository import GLib, Gtk;  GLib.timeout_add_seconds(1, Gtk.main_quit, None); Gtk.main()'

  Or you run python-cffi's test suite:

    python3 -m pytest -v -k test_callback_as_function_argument testing

  ProblemType: Crash
  DistroRelease: Ubuntu 14.04
  Package: python3.4-minimal 3.4.0-1
  Uname: Linux 3.13.0-19-generic i686
  Architecture: i386
  Date: Fri Mar 28 07:05:41 2014
  ExecutablePath: /usr/bin/python3.4
  ExecutableTimestamp: 1395533063
  PackageArchitecture: amd64
  ProcCmdline: python3
  ProcCwd: /tmp/adt-run.QKVQFy/dsc0-build/gtk+3.0-3.10.7
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/sh
  Signal: 11
  SourcePackage: python3.4
  StacktraceTop:
   g_callable_info_free_closure (callable_info=0x9e8a5b0, closure=0xb6b43008) at girepository/girffi.c:426
   _pygi_invoke_closure_free (data=0x9efdd50) at ../../gi/pygi-closure.c:638
   _pygi_destroy_notify_callback_closure (cif=0x9efddbc, result=0xbfaec770, args=0xbfaec710, data=0x0) at ../../gi/pygi-closure.c:703
   ffi_closure_SYSV_inner (closure=0xb6b43030, respp=0xbfaec77c, args=0xbfaec790) at ../src/x86/ffi.c:503
   ffi_closure_SYSV () at ../src/x86/sysv.S:199
  UserGroups: adm audio cdrom dialout dip floppy kvm netdev plugdev sudo video

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