[tor-bugs] #17808 [Tor]: Tor 0.2.7.6 doesn't produce a backtrace on gcc 4.9.3 on OS X 10.11.2

[Tor Bug Tracker & Wiki]

#17808: Tor 0.2.7.6 doesn't produce a backtrace on gcc 4.9.3 on OS X 10.11.2
------------------------+--------------------------------
     Reporter:  teor    |      Owner:
         Type:  defect  |     Status:  new
     Priority:  Medium  |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor     |    Version:  Tor: 0.2.7.6
     Severity:  Normal  |   Keywords:
Actual Points:          |  Parent ID:
       Points:          |    Sponsor:
------------------------+--------------------------------
 {{{
 $ gcc-mp-4.9 -v
 Using built-in specs.
 COLLECT_GCC=gcc-mp-4.9
 COLLECT_LTO_WRAPPER=/opt/local/libexec/gcc/x86_64-apple-darwin15/4.9.3
 /lto-wrapper
 Target: x86_64-apple-darwin15
 Configured with:
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_gcc49/gcc49/work/gcc-4.9.3/configure
 --prefix=/opt/local --build=x86_64-apple-darwin15 --enable-
 languages=c,c++,objc,obj-c++,lto,fortran,java
 --libdir=/opt/local/lib/gcc49 --includedir=/opt/local/include/gcc49
 --infodir=/opt/local/share/info --mandir=/opt/local/share/man
 --datarootdir=/opt/local/share/gcc-4.9 --with-local-prefix=/opt/local
 --with-system-zlib --disable-nls --program-suffix=-mp-4.9 --with-gxx-
 include-dir=/opt/local/include/gcc49/c++/ --with-gmp=/opt/local --with-
 mpfr=/opt/local --with-mpc=/opt/local --with-isl=/opt/local --disable-isl-
 version-check --with-cloog=/opt/local --disable-cloog-version-check
 --enable-stage1-checking --enable-lto --enable-libstdcxx-time --with-
 as=/opt/local/bin/as --with-ld=/opt/local/bin/ld --with-
 ar=/opt/local/bin/ar --with-bugurl=https://trac.macports.org/newticket
 --with-pkgversion='MacPorts gcc49 4.9.3_0+universal' --with-build-config
 =bootstrap-debug
 Thread model: posix
 gcc version 4.9.3 (MacPorts gcc49 4.9.3_0+universal)
 Jacks-Mac:~ twilsonb$ clang-mp-3.7 -v
 clang version 3.7.0 (tags/RELEASE_370/final)
 Target: x86_64-apple-darwin15.2.0
 Thread model: posix
 }}}

 {{{
 $ src/test/test-bt-cl crash

 ============================================================ T= 1449767124
 Tor  died: Caught signal 11
 0   test-bt-cl                          0x0000000108b72178 crash_handler +
 56
 1   test-bt-cl                          0x0000000108b780de attr_detached +
 1374
 }}}

 {{{
 $ src/test/test-bt-cl assert
 Dec 11 04:05:41.826 [err] tor_assertion_failed_(): Bug:
 src/test/test_bt_cl.c:42: crash: Assertion 1 == 0 failed; aborting. (on
 Tor 0.2.7.6 )
 Dec 11 04:05:41.826 [err] Bug: Assertion 1 == 0 failed in crash at
 src/test/test_bt_cl.c:42. Stack trace: (on Tor 0.2.7.6 )
 Dec 11 04:05:41.826 [err] Bug:     0   test-bt-cl
 0x0000000109fb7264 log_backtrace + 68 (on Tor 0.2.7.6 )
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17808>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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