(gdb) bt full
#0  0xb7716c31 in __kernel_vsyscall ()
No symbol table info available.
#1  0xafc03ea9 in __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:54
        resultvar = <optimized out>
        resultvar = <optimized out>
        pid = 31033
        selftid = 31112
#2  0xafc05407 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x5f736d65, sa_sigaction = 0x5f736d65}, sa_mask = {__val = {
              1869376609, 1600415095, 1953720684, 170920250, 1970040694, 1918989422, 1952669561, 1935635576, 
              1668573559, 980641128, 892810249, 1846163255, 1870032495, 1953396076, 1601794657, 1954051171, 1769435999, 
              1701340020, 822688371, 171061559, 0 <repeats 12 times>}}, sa_flags = 0, sa_restorer = 0x0}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#3  0xb7581de0 in base::debug::BreakDebugger () at ../../base/debug/debugger_posix.cc:251
No locals.
#4  0xb75835f9 in StackDumpSignalHandler () at ../../base/debug/stack_trace_posix.cc:225
No locals.
#5  <signal handler called>
No symbol table info available.
#6  0xb7716c31 in __kernel_vsyscall ()
No symbol table info available.
#7  0xafc03ea9 in __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:54
        resultvar = <optimized out>
        resultvar = <optimized out>
        pid = 31033
        selftid = 31112
#8  0xafc05407 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x5f736d65, sa_sigaction = 0x5f736d65}, sa_mask = {__val = {
              1869376609, 1600415095, 1953720684, 170920250, 1970040694, 1918989422, 1952669561, 1935635576, 
              1668573559, 980641128, 892810249, 1846163255, 1870032495, 1953396076, 1601794657, 1954051171, 1769435999, 
              1701340020, 822688371, 171061559, 2938025721, 2819714605, 2819714594, 1, 9, 2938026051, 108, 2407935472, 
              1, 0, 2147483647, 2938293376}}, sa_flags = 0, sa_restorer = 0x70365600}
        sigs = {__val = {32, 0 <repeats 31 times>}}
#9  0xb7581de0 in base::debug::BreakDebugger () at ../../base/debug/debugger_posix.cc:251
No locals.
#10 0xb75835f9 in StackDumpSignalHandler () at ../../base/debug/stack_trace_posix.cc:225
No locals.
#11 <signal handler called>
No symbol table info available.
#12 0x8050648a in std::_Rb_tree<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > >, std::_Select1st<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >::find () at /usr/include/c++/5/bits/stl_tree.h:2292
No locals.
#13 0x8050901b in std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >::find ()
    at /usr/include/c++/5/bits/stl_map.h:846
No locals.
#14 extensions::NetworkingPrivateLinux::AddOrUpdateAccessPoint ()
    at ../../extensions/browser/api/networking_private/networking_private_linux.cc:941
No locals.
#15 0x805097d4 in extensions::NetworkingPrivateLinux::AddAccessPointsFromDevice ()
    at ../../extensions/browser/api/networking_private/networking_private_linux.cc:920
No locals.
#16 0x80509b1b in extensions::NetworkingPrivateLinux::GetAllWiFiAccessPoints ()
    at ../../extensions/browser/api/networking_private/networking_private_linux.cc:733
No locals.
#17 0x80502586 in base::internal::FunctorTraits<void (extensions::NetworkingPrivateLinux::*)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), void>::Invoke<extensions::NetworkingPrivateLinux*, bool const&, bool const&, int const&, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*>(void (extensions::NetworkingPrivateLinux::*)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), extensions::NetworkingPrivateLinux*&&, bool const&, bool const&, int const&, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*&&) ()
    at ../../base/bind_internal.h:214
No locals.
#18 base::internal::InvokeHelper<false, void>::MakeItSo<void (extensions::NetworkingPrivateLinux::* const&)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), extensions::NetworkingPrivateLinux*, bool const&, bool const&, int const&, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*>(void (extensions::NetworkingPrivateLinux::* const&)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), extensions::NetworkingPrivateLinux*&&, bool const&, bool const&, int const&, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*&&) ()
    at ../../base/bind_internal.h:286
No locals.
#19 base::internal::Invoker<base::internal::BindState<void (extensions::NetworkingPrivateLinux::*)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), base::internal::UnretainedWrapper<extensions::NetworkingPrivateLinux>, bool, bool, int, base::internal::UnretainedWrapper<std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > > > >, void ()>::RunImpl<void (extensions::NetworkingPrivateLinux::* const&)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), std::tuple<base::internal::UnretainedWrapper<extensions::NetworkingPrivateLinux>, bool, bool, int, base::internal::UnretainedWrapper<std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > > > > const&, 0u, 1u, 2u, 3u, 4u>(void (extensions::NetworkingPrivateLinux::* const&)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), std::tuple<base::internal::UnretainedWrapper<extensions::NetworkingPrivateLinux>, bool, bool, int, base::internal::UnretainedWrapper<std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > > > > const&, base::IndexSequence<0u, 1u, 2u, 3u, 4u>) () at ../../base/bind_internal.h:364
No locals.
#20 base::internal::Invoker<base::internal::BindState<void (extensions::NetworkingPrivateLinux::*)(bool, bool, int, std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > >*), base::internal::UnretainedWrapper<extensions::NetworkingPrivateLinux>, bool, bool, int, base::internal::UnretainedWrapper<std::map<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> >, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> >, std::less<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > >, std::allocator<std::pair<std::__cxx11::basic_string<unsigned short, base::string16_char_traits, std::allocator<unsigned short> > const, std::unique_ptr<base::DictionaryValue, std::default_delete<base::DictionaryValue> > > > > > >, void ()>::Run(base::internal::BindStateBase*) () at ../../base/bind_internal.h:342
No locals.
#21 0xb7607e2e in base::Callback<void (), (base::internal::CopyMode)0, (base::internal::RepeatMode)0>::Run() && ()
    at ../../base/callback.h:91
No locals.
#22 RunTaskAndPostReply () at ../../base/threading/post_task_and_reply_impl.cc:45
No locals.
#23 0xb7607db3 in Invoke<base::(anonymous namespace)::PostTaskAndReplyRelay*> () at ../../base/bind_internal.h:214
No locals.
#24 MakeItSo<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), base::(anonymous namespace)::PostTaskAndReplyRelay*> () at ../../base/bind_internal.h:286
No locals.
#25 RunImpl<void (base::(anonymous namespace)::PostTaskAndReplyRelay::*)(), std::tuple<base::internal::UnretainedWrapper<base::(anonymous namespace)::PostTaskAndReplyRelay> >, 0u> () at ../../base/bind_internal.h:364
No locals.
#26 RunOnce () at ../../base/bind_internal.h:329
No locals.
#27 0xb758480b in base::Callback<void (), (base::internal::CopyMode)0, (base::internal::RepeatMode)0>::Run() && ()
    at ../../base/callback.h:91
No locals.
#28 base::debug::TaskAnnotator::RunTask () at ../../base/debug/task_annotator.cc:59
No locals.
#29 0xb75b0f3b in base::MessageLoop::RunTask () at ../../base/message_loop/message_loop.cc:423
No locals.
#30 0xb75b2292 in base::MessageLoop::DeferOrRunPendingTask () at ../../base/message_loop/message_loop.cc:434
No locals.
#31 0xb75b3399 in base::MessageLoop::DoWork () at ../../base/message_loop/message_loop.cc:527
No locals.
#32 0xb75b3fbd in base::MessagePumpLibevent::Run () at ../../base/message_loop/message_pump_libevent.cc:219
No locals.
#33 0xb75b0304 in base::MessageLoop::RunHandler () at ../../base/message_loop/message_loop.cc:387
No locals.
#34 0xb75dd5dd in base::RunLoop::Run () at ../../base/run_loop.cc:37
No locals.
#35 0xb760dc61 in base::Thread::Run () at ../../base/threading/thread.cc:250
No locals.
#36 base::Thread::ThreadMain () at ../../base/threading/thread.cc:333
No locals.
#37 0xb7607cdf in ThreadFunc () at ../../base/threading/platform_thread_posix.cc:71
No locals.
#38 0xb76de295 in start_thread (arg=0x8f864b40) at pthread_create.c:333
        __res = <optimized out>
        pd = 0x8f864b40
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1217454080, 0, 4001536, -1887026648, -1966782968, 1568870521}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, 
              canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#39 0xafcbf05e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:114
No locals.