[ndnSIM] SIGSEGV when simply assigning one smart pointer to another?
John Baugh
jpbaugh at umich.edu
Wed Apr 12 21:18:48 PDT 2017
Greetings again ndnSIM friends,
As requested:
---------------------
*(gdb) runStarting program:
/home/jpbaugh/ndnSIM/my-simulations/build/jpb-pop1 [Thread debugging using
libthread_db enabled]Using host libthread_db library
"/lib/x86_64-linux-gnu/libthread_db.so.1".Inside ctor for PStratInside ctor
for PStratInside ctor for PStratInside ctor for PStratIn jpb-pop1 main:
0x7fffffffd6a0About to get forwarderJust got forwarder. About to get
strategy choiceJust got strategy choice, about to get effectiveStrategyJust
got effective strategy, about to set popularity manager for it.About to set
Popularity Manager inside PStratBefore assignment lineProgram received
signal SIGSEGV, Segmentation
fault.std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release
(this=0x2710) at /usr/include/c++/5/bits/shared_ptr_base.h:147147
if (__gnu_cxx::__exchange_and_add_dispatch(&_M_use_count, -1) == 1)(gdb) bt
full#0 std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release
(this=0x2710) at /usr/include/c++/5/bits/shared_ptr_base.h:147No
locals.#1 std::__shared_count<(__gnu_cxx::_Lock_policy)2>::~__shared_count
( this=<optimized out>, __in_chrg=<optimized out>) at
/usr/include/c++/5/bits/shared_ptr_base.h:659No locals.#2
std::__shared_ptr<PopularityManager,
(__gnu_cxx::_Lock_policy)2>::~__shared_ptr (this=<optimized out>,
__in_chrg=<optimized out>) at
/usr/include/c++/5/bits/shared_ptr_base.h:925No locals.#3
std::__shared_ptr<PopularityManager,
(__gnu_cxx::_Lock_policy)2>::operator=(std::__shared_ptr<PopularityManager,
(__gnu_cxx::_Lock_policy)2>&&) ( __r=<optimized out>, this=0x75fc50)
at /usr/include/c++/5/bits/shared_ptr_base.h:1000No locals.#4
std::shared_ptr<PopularityManager>::operator=(std::shared_ptr<PopularityManager>&&)
(__r=<optimized out>, this=0x75fc50) at
/usr/include/c++/5/bits/shared_ptr.h:294No locals.#5
nfd::fw::PStrat::setPopularityManager (this=0x75fba0, pm=...) at
../extensions/PStrat.cpp:56No locals.---Type <return> to continue, or q
<return> to quit---#6 0x0000000000407fb9 in ns3::main (argc=<optimized
out>, argv=<optimized out>) at ../scenarios/jpb-pop1.cpp:120 cmd
= { m_items = {<std::__cxx11::_List_base<ns3::CommandLine::Item*,
std::allocator<ns3::CommandLine::Item*> >> = { _M_impl =
{<std::allocator<std::_List_node<ns3::CommandLine::Item*> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::CommandLine::Item*> >> =
{<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffdc60, _M_prev = 0x7fffffffdc60}, _M_data =
0}}}, <No data fields>}, m_usage = "", m_name =
"jpb-pop1"} nodes = {m_nodes = std::vector of length 4, capacity 4 =
{{ m_ptr = 0x67f7f0}, {m_ptr = 0x67f730}, {m_ptr = 0x67fa30},
{ m_ptr = 0x67fb30}}} p2p = {<ns3::PcapHelperForDevice>
= { _vptr.PcapHelperForDevice = 0x61c618 <vtable for
ns3::PointToPointHelper+16>}, <ns3::AsciiTraceHelperForDevice> =
{ _vptr.AsciiTraceHelperForDevice = 0x61c648 <vtable for
ns3::PointToPointHelper+64>}, m_queueFactory = {m_tid = {m_tid = 56},
m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConst---Type <return> to
continue, or q <return> to quit---ructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffd9d8, _M_prev = 0x7fffffffd9d8}, _M_data =
0}}}, <No data fields>}}}, m_channelFactory = { m_tid = {m_tid =
198}, m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffd9f8, _M_prev = 0x7fffffffd9f8}, _M_data =
0}}}, <No data fields>}}}, m_remoteChannelFactory = {m_tid =
{m_tid = 199}, m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffda18, _M_prev = 0x7fffffffda18}, _M_data =
0}}}, <No data fields>}}}, m_deviceFactory = { m_tid = {m_tid =
197}, m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffda38, _M_prev = 0x7fffffffda38}, _M_data =
0}}}, <No data fields>}}}} ndnHelper =
{<boost::noncopyable_::noncopyable> = {<No data fields>},
_vptr.StackHelper = 0x7ffff5bed7b0 <vtable for ns3::ndn::StackHelper+16>,
m_isRibManagerDisabled = false,
m_isForwarderStatusManagerDisabled = false,
m_isStrategyChoiceManagerDisabled = false, m_ndnFactory = {m_tid =
{ m_tid = 603}, m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffdcd8, _M_prev = 0x7fffffffdcd8}, _M_data =
0}}}, <No data fields>}}}, m_contentStoreFactory = {m_tid =
{m_tid = 568}, m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffffffdcf8, _M_prev = 0x7fffffffdcf8}, _M_data =
0}}}, <No data fields>}}}, m_needSetDefaultRoutes = true,
m_maxCsSize = 100, ---Type <return> to continue, or q <return> to
quit--- nc =
{<std::_Maybe_unary_or_binary_function<std::unique_ptr<nfd::cs::Policy,
std::default_delete<nfd::cs::Policy> > >> = {<No data fields>},
<std::_Function_base> = { static _M_max_size = 16, static
_M_max_align = 8, _M_functor = {_M_unused = {_M_object = 0x0,
_M_const_object = 0x0, _M_function_pointer = 0x0, _M_member_pointer =
NULL}, _M_pod_data = '\000' <repeats 15 times>},
_M_manager = 0x7ffff54f5000
<std::_Function_base::_Base_manager<ns3::ndn::StackHelper::StackHelper()::<lambda()>
>::_M_manager(std::_Any_data &, const std::_Any_data &,
std::_Manager_operation)>}, _M_invoker = 0x7ffff54f5040
<std::_Function_handler<std::unique_ptr<nfd::cs::Policy,
std::default_delete<nfd::cs::Policy> >(),
ns3::ndn::StackHelper::StackHelper()::<lambda()> >::_M_invoke(const
std::_Any_data &)>}, m_csPolicies = std::map with 2 elements = {
["nfd::cs::lru"] =
{<std::_Maybe_unary_or_binary_function<std::unique_ptr<nfd::cs::Policy,
std::default_delete<nfd::cs::Policy> > >> = {<No data fields>},
<std::_Function_base> = { static _M_max_size = 16, static
_M_max_align = 8, _M_functor = {_M_unused = {_M_object =
0x6d20656874207361, _M_const_object = 0x6d20656874207361,
_M_function_pointer = 0x6d20656874207361,
_M_member_pointer = &virtual table offset 7863396448688173920, this
adjustment 8151635676654827617}, _M_pod_data = "as the maximum q"},
_M_manager = 0x7ffff54f5000
<std::_Function_base::_Base_manager<ns3::ndn::StackHelper::StackHelper()::<lambda()>
>::_M_manager(std::_Any_data &, const std::_Any_data &,
std::_Manager_operation)>}, _M_invoker = 0x7ffff54f5040
<std::_Function_handler<std::unique_ptr<nfd::cs::Policy,
std::default_delete<nfd::cs::Policy> >(),
ns3::ndn::StackHelper::StackHelper()::<lambda()> >::_M_invoke(const
std::_Any_data &)>}, ["nfd::cs::priority_fifo"] =
{<std::_Maybe_unary_or_binary_function<std::unique_ptr<nfd::cs::Policy,
std::default_delete<nfd::cs::Policy> > >> = {<No data fields>},
<std::_Function_base> = {static _M_max_size = 16, static _M_max_align = 8,
_M_functor = {_M_unused = {_M_object = 0x0, _M_const_object = 0x0,
_M_function_pointer = 0x0, _M_member_pointer = NULL},
_M_pod_data =
"\000\000\000\000\000\000\000\000\060\001\000\000\000\000\000"},
_M_manager = 0x7ffff54f5020
<std::_Function_base::_Base_manager<ns3::ndn::StackHelper::StackHelper()::<lambda()>
>::_M_manager(std::_Any_data &, const std::_Any_data &,
std::_Manager_operation)>}, _M_invoker = 0x7ffff54f50d0
<std::_Function_handler<std::unique_ptr<nfd::cs::Policy,
std::default_delete<nfd::cs::Policy> >(),
ns3::ndn::StackHelper::StackHelper()::<lambda()> >::_M_invoke(const
std::_Any_data &)>}}, m_netDeviceCallbacks =
{<std::__cxx11::_List_base<std::pair<ns3::TypeId,
ns3::Callback<std::shared_ptr<nfd::face::Face>, ns3::Ptr<ns3::Node>,
ns3::Ptr<ns3::ndn::L3Protocol>, ns3::Ptr<ns3::NetDevice>, ns3::empty,
ns3::empty, ns3::empty, ns3::empty, ns3::empty, ns3::empty> >,
std::allocator<std::pair<ns3::TypeId,
ns3::Callback<std::shared_ptr<nfd::face::Face>, ns3::Ptr<ns3::Node>,
ns3::Ptr<ns3::ndn::L3Protocol>, ns3::Ptr<ns3::NetDevice>, ns3::empty,
ns3::empty, ns3::empty, ns3::empty, ns3::empty, ns3::empty> > > >> =
{ _M_impl =
{<std::allocator<std::_List_node<std::pair<ns3::TypeId,
ns3::Callback<std::shared_ptr<nfd::face::Face>, ns3::Ptr<ns3::Node>,
ns3::Ptr<ns3::ndn::L3Protocol>, ns3::Ptr<ns3::NetDevice>, ns3::empty,
ns3::empty, ns3::empty, ns3::empty, ns3::empty, ns3::empty> > > >> =
{<__gnu_cxx::new_allocator<std::_List_node<std::pair<ns3::TypeId,
ns3::Callback<std::shared_ptr<nfd::face::Face>, ns3::Ptr<ns3::Node>,
ns3::Ptr<ns3::ndn::L3Protocol>, ns3::Ptr<ns3::NetDevice>, ns3::empty,
ns3::empty, ns3::empty, ns3::empty, ns3::empty, ns3::empty> > > >> = {<No
data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = {_M_next = 0x682740, _M_prev =
0x682740}, _M_data = 1}}}, <No data fields>}} ndnGlobalRoutingHelper
= {<No data fields>} l3 = {m_ptr = 0x760140}
popularityManager = std::shared_ptr (count 2, weak 0) 0x7b0820
forwarder = std::shared_ptr (count 2, weak 0) 0x75f860
effectiveStrategy = @0x75fba0: {<nfd::fw::Strategy> =
{<std::enable_shared_from_this<nfd::fw::Strategy>> = {
_M_weak_this = std::weak_ptr (empty) 0x0},
<boost::noncopyable_::noncopyable> = {<No data fields>}, _vptr.Strategy =
0x7ffff5c06c48 <vtable for nfd::fw::BestRouteStrategy2+16>,
afterAddFace = @0x75f8e8, beforeRemoveFace = @0x75f910, m_name =
{<std::enable_shared_from_this<ndn::Name>> = {_M_weak_this = std::weak_ptr
(empty) 0x0}, static npos = 18446744073709551615, m_nameBlock
= {m_buffer = std::shared_ptr (empty) 0x0, m_type = 4294967295, m_begin =
<error reading variable>}, m_forwarder = @0x75f860,
m_measurements = {<boost::noncopyable_::noncopyable> = {<No data fields>},
m_measurements = @0x75fa30, m_strategyChoice = @0x75fa40, m_strategy =
0x75fba0}}, static STRATEGY_NAME =
{<std::enable_shared_from_this<ndn::Name>> = {_M_weak_this = std::weak_ptr
(empty) 0x0}, static npos = 18446744073709551615, m_nameBlock =
{ m_buffer = std::shared_ptr (empty) 0x0, m_type = 4294967295,
m_begin = <error reading variable>}, popularityManager = std::shared_ptr
(count 1, weak 0) 0x7b54c0} policy =
std::unique_ptr<PopularityPolicy> containing 0x7fffffffd6b0
consumerHelper = {m_factory = {m_tid = {m_tid = 55264}, m_parameters =
{ m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = { _M_next =
0x7fffee7cb87d <std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::reserve(unsigned long)+125>, _M_prev =
0x7fffeea2c1c0}, _M_data = 140737194490703}}}, <No
data fields>}}}} consumerHelper2 = {m_factory = {m_tid = {m_tid =
55704}, m_parameters = { m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = {_M_next = 0x7fffffffd998, _M_prev =
0x70}, _M_data = 140737194491224}}}, <No data fields>}}}}
producerHelper = {m_factory = {m_tid = {m_tid = 55280}, m_parameters =
{ m_list =
{<std::__cxx11::_List_base<ns3::AttributeConstructionList::Item,
std::allocator<ns3::AttributeConstructionList::Item> >> =
{ _M_impl =
{<std::allocator<std::_List_node<ns3::AttributeConstructionList::Item> >> =
{<__gnu_cxx::new_allocator<std::_List_node<ns3::AttributeConstructionList::Item>
>> = {<No data fields>}, <No data fields>}, _M_node =
{<std::__detail::_List_node_base> = {_M_next = 0x0, _M_prev =
0x7fff00000002}, _M_data = 20}}}, <No data fields>}}}}#7
0x00007fffedde4830 in __libc_start_main (main=0x408cb0 <main(int, char**)>,
argc=1, argv=0x7fffffffde98, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffffffde88) at
../csu/libc-start.c:291---Type <return> to continue, or q <return> to
quit--- result = <optimized out> unwind_buf = {cancel_jmp_buf
= {{jmp_buf = {0, -3029923319900902443, 4231824, 140737488346768, 0, 0,
3029923876187565013, 3029893360785714133}, mask_was_saved = 0}}, priv =
{pad = {0x0, 0x0, 0x1, 0x408cb0 <main(int, char**)>}, data =
{prev = 0x0, cleanup = 0x0, canceltype = 1}}} not_first_call =
<optimized out>#8 0x00000000004092b9 in _start ()No symbol table info
available.*
---------------------
Thanks,
John
On Tue, Apr 11, 2017 at 8:43 AM, Junxiao Shi <shijunxiao at email.arizona.edu>
wrote:
> `bt full` is better than `bt` as it shows local variables. See
> http://www.lists.cs.ucla.edu/pipermail/nfd-dev/2016-May/001748.html
>
> On Apr 11, 2017 05:27, "Ashlesh Gawande (agawande)" <agawande at memphis.edu>
> wrote:
>
> So after gdb is done you need to put bt to get the backtrace:
>
>
> *Program received signal SIGSEGV, Segmentation fault.*
> * std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_release
> (this=0x2710)*
> * at /usr/include/c++/5/bits/shared_ptr_base.h:147*
> * 147 if (__gnu_cxx::__exchange_and_add_dispatch(&_M_use_count, -1)
> == 1)*
>
> * (gdb) bt*
>
> Ashlesh
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/ndnsim/attachments/20170413/6507cbeb/attachment-0001.html>
More information about the ndnSIM
mailing list