CodeCompass
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Ericsson
crash on xerces using the 'get class collaboration diagram' when diagram is large
CodeCompass crashes on Xerces when we call class collaboration diagram on a certain class from vscode.
To reproduce I attach the neccessary revision details for the related sources. I also (would) attach the corecdump for the mentioned crash, but it is about 250Mb I cant upload it here. Later on I will comment a link to it if needed. Also the call stack and the raw console output.
Later on, if I have spare time, I'll look forward to hunt this one down.
codecompass sources:
remote: https://github.com/mcserep/CodeCompass.git
branch and commit: cefp2019 320fa9d Update ODB generated file include for LSP service with Ericsson#323.
xerces sources:
remote: https://github.com/apache/xerces-c.git
branch and commit: trunk be81663b9 Remove documentation of no RTTI requirement
xerces-c/src/xercesc/sax/InputSource.hpp:62
class SAX_EXPORT InputSource : public XMemory
requesting the class collaboration diagram on XMemory this from vscode
cefp@ccvm:~/xerces-c$ uname -a
Linux ccvm 4.15.0-51-generic #55-Ubuntu SMP Wed May 15 14:27:21 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
(gdb) bt
#0 0x00007ffff5709e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007ffff570b801 in __GI_abort () at abort.c:79
#2 0x00007ffff5754897 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7ffff5881b9a "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#3 0x00007ffff575b90a in malloc_printerr (str=str@entry=0x7ffff5883890 "double free or corruption (!prev)") at malloc.c:5350
#4 0x00007ffff5762e84 in _int_free (have_lock=0, p=0x555555f195b0, av=0x7ffff5ab6c40 <main_arena>) at malloc.c:4281
#5 0x00007ffff5762e84 in __GI___libc_free (mem=0x555555f195c0) at malloc.c:3124
#6 0x00007fffda51d159 in () at /usr/lib/x86_64-linux-gnu/graphviz/libgvplugin_dot_layout.so.6
#7 0x00007ffff5152ee4 in gvFreeLayout () at /usr/lib/x86_64-linux-gnu/libgvc.so.6
#8 0x00007ffff788c557 in cc::util::Graph::output[abi:cxx11](cc::util::Graph::Format) const () at /home/cefp/codecompass/install/bin/../lib/serviceplugin/libcppservice.so
#9 0x00007ffff783c361 in cc::service::language::CppServiceHandler::getDiagram(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int) () at /home/cefp/codecompass/install/bin/../lib/serviceplugin/libcppservice.so
#10 0x00007ffff7bbb76c in cc::service::lsp::LspServiceHandler::nodeDiagram[abi:cxx11](cc::service::lsp::DiagramParams const&) ()
at /home/cefp/codecompass/install/bin/../lib/serviceplugin/liblspservice.so
#11 0x00005555555a4d2b in cc::webserver::LspHandler::beginRequest(mg_connection*) ()
#12 0x000055555559fe96 in cc::webserver::MainRequestHandler::begin_request_handler(mg_connection*) ()
#13 0x00005555555a0d46 in cc::webserver::MainRequestHandler::operator()(mg_connection*, mg_event) ()
#14 0x00005555555a133b in cc::webserver::ThreadedMongoose::delegater(mg_connection*, mg_event) ()
#15 0x00007ffff790e6e3 in on_recv_data () at /home/cefp/codecompass/install/bin/../lib/serviceplugin/libcppservice.so
#16 0x00007ffff790fe48 in mg_ev_handler () at /home/cefp/codecompass/install/bin/../lib/serviceplugin/libcppservice.so
#17 0x00007ffff7906e3d in ns_read_from_socket () at /home/cefp/codecompass/install/bin/../lib/serviceplugin/libcppservice.so
#18 0x00007ffff7908332 in ns_server_poll () at /home/cefp/codecompass/install/bin/../lib/serviceplugin/libcppservice.so
#19 0x00005555555a138d in cc::webserver::ThreadedMongoose::serve(void*) ()
#20 0x00005555555a2c88 in void cc::webserver::ThreadedMongoose::run<void>(void*, std::function<int (mg_connection*, mg_event)>) ()
#21 0x00005555555a1ce7 in cc::webserver::ThreadedMongoose::run(std::function<int (mg_connection*, mg_event)>) ()
#22 0x00005555555915ed in main ()
raw-log:
cefp@ccvm:~/xerces-c/build$ /home/cefp/codecompass/install/bin/CodeCompass_webserver --workspace /home/cefp/my_workspace --database "pgsql:database=xerces;host=localhost;port=5432;user=compass"
[INFO] Mongoose web server starting on port 8080
[INFO] Search server started!
[INFO] Start serving search for index /home/cefp/my_workspace/xerces/search
Error: trouble in init_rank
%0 98
%0 2
%0 3
%0 2
%0 9
%0 2
%0 13
%0 2
%0 6
%0 2
%0 12
%0 2
%0 7
%0 2
%0 10
%0 2
%0 14
%0 2
%0 6
%0 2
%0 11
%0 2
%0 9
%0 2
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%0 2
%0 3
%0 2
%0 6
%0 2
%0 5
%0 2
%0 4
%0 2
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%0 24
%0 2
%0 28
%0 2
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%0 2
%0 51
%0 6
%0 90
%0 2
%0 13
%0 2
%0 9
%0 2
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%0 2
%0 21
%0 2
%0 16
%0 2
%0 2
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8470325380581690045 3
1391676055137536866 3
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3327548925689204052 3
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13633532622789770899 2
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1125144367989050476 3
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%0 1
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libpath/shortest.c:324: triangulation failed
libpath/shortest.c:192: source point not in any triangle
Error: in routesplines, Pshortestpath failed
libpath/shortest.c:324: triangulation failed
libpath/shortest.c:192: source point not in any triangle
Error: in routesplines, Pshortestpath failed
libpath/shortest.c:324: triangulation failed
libpath/shortest.c:192: source point not in any triangle
Error: in routesplines, Pshortestpath failed
libpath/shortest.c:324: triangulation failed
libpath/shortest.c:192: source point not in any triangle
Error: in routesplines, Pshortestpath failed
Error: lost 9187852835683441644 16146355764392145917 edge
Error: lost 5699161865892693104 18239899674024799333 edge
Error: lost 18352624887942426466 5699161865892693104 edge
Error: lost 15889171867026132079 12245182348721028704 edge
double free or corruption (out)
Aborted (core dumped)
Thanks for the bug report. A minor remark: I don't think it mattered that you requested the class collaboration diagram from VSCode, through LSP, as the issue is seemingly with Graphviz, producing the SVG diagram.
Reevaluating this issue now I have found that some SVG output is now produced now in <10s for the given location:
xerces-c/src/xercesc/sax/InputSource.hpp:62class SAX_EXPORT InputSource : public XMemoryrequesting the class collaboration diagram onXMemory
However the diagram is not displayed in the browser. I haven't checked whether the returned SVG is a correct diagram.
I reevaluated this bug report now, and the class collaboration diagram for the mentioned XMemory class was produced and displayed after a few seconds on https://codecompass.net/. I consider this bug report resolved.