elenco doppio collegamento corrotto?

io sono solo il debug di un grande progetto e ed ottenere questo erroreelenco doppio collegamento corrotto?

*** glibc detected *** p_appmanager/obj/appmanager: corrupted double-linked list: 0x08325e18 **

ho cercato di eseguire il debug del codice con il valgrind, ma io non sono molto familiarità con questo strumento. Quindi sto scaricando i log qui se riesci a scoprire qualcosa da loro per favore fammi sapere.

Qualcuno può spiegare cosa potrebbe significare il seguente messaggio di errore?

==2181== Invalid read of size 1 
==2181== at 0x402C658: strlen (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x40FCC2D: std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x4359234 is 12 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 1 
==2181== at 0x402C663: strlen (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x40FCC2D: std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x4359235 is 13 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 4 
==2181== at 0x402DA08: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4106850: std::basic_streambuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40D8CDF: std::basic_filebuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FC9AA: std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FCC3D: std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x4359234 is 12 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 2 
==2181== at 0x402DA60: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4106850: std::basic_streambuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40D8CDF: std::basic_filebuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FC9AA: std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FCC3D: std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x4359238 is 16 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 1 
==2181== at 0x402DA90: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4106850: std::basic_streambuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40D8CDF: std::basic_filebuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FC9AA: std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FCC3D: std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x435923a is 18 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 1 
==2181== at 0x402DA9C: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4106850: std::basic_streambuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40D8CDF: std::basic_filebuf<char, std::char_traits<char> >::xsputn(char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FC9AA: std::basic_ostream<char, std::char_traits<char> >& std::__ostream_insert<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*, int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x40FCC3D: std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x43f0936 is 14 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
stop tablet 
==2181== Invalid read of size 1 
==2181== at 0x402C658: strlen (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4108EF1: std::string::operator=(char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x45b2e14 is 12 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 1 
==2181== at 0x402C663: strlen (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4108EF1: std::string::operator=(char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x45b2e15 is 13 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 1 
==2181== at 0x402DAEA: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4108C7A: std::string::_M_replace_safe(unsigned int, unsigned int, char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108CF8: std::string::assign(char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108F05: std::string::operator=(char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x45b2e19 is 17 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 4 
==2181== at 0x402DB18: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4108C7A: std::string::_M_replace_safe(unsigned int, unsigned int, char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108CF8: std::string::assign(char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108F05: std::string::operator=(char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x45b2e14 is 12 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
Success:: tablet process terminated Successfully. 
CONSOLE>start tablet 
Success:: tablet Process Created Successfully 
CONSOLE>stop tablet 
==2181== Invalid read of size 4 
==2181== at 0x402DA08: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4108C7A: std::string::_M_replace_safe(unsigned int, unsigned int, char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108CF8: std::string::assign(char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108F05: std::string::operator=(char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x45dd8c4 is 12 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== 
==2181== Invalid read of size 2 
==2181== at 0x402DA60: memcpy (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x4108C7A: std::string::_M_replace_safe(unsigned int, unsigned int, char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108CF8: std::string::assign(char const*, unsigned int) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4108F05: std::string::operator=(char const*) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181== Address 0x45dd8c8 is 16 bytes inside a block of size 21 free'd 
==2181== at 0x402ACFC: operator delete(void*) (in /usr/lib/valgrind/vgpreload_memcheck-x86-linux.so) 
==2181== by 0x410899A: std::string::_Rep::_M_destroy(std::allocator<char> const&) (in /usr/lib/i386-linux-gnu/libstdc++.so.6.0.16) 
==2181== by 0x4071B37: void std::_Destroy_aux<false>::__destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x40717DC: void std::_Destroy<std::string*>(std::string*, std::string*) (in /usr/lib/libparser.so) 
==2181== by 0x4071041: void std::_Destroy<std::string*, std::string>(std::string*, std::string*, std::allocator<std::string>&) (in /usr/lib/libparser.so) 
==2181== by 0x407088A: std::vector<std::string, std::allocator<std::string> >::~vector() (in /usr/lib/libparser.so) 
==2181== by 0x406F497: Parser::parse(std::string) (in /usr/lib/libparser.so) 
==2181== by 0x40729E2: getMessage(int, Message**) (in /usr/lib/libparser.so) 
==2181== by 0x804CB99: fifoThread(void*) (in /home/cleanhands/SBISSW (2)/p_appmanager/obj/appmanager) 
==2181== by 0x4054D4B: start_thread (pthread_create.c:308) 
==2181== by 0x4269DDD: clone (clone.S:130) 
==2181==

fonte

2013-07-27 Amit Bhaira

Sembra un thread è la stampa di dati (char* dati di caratteri) che è stato già liberato il principale (o un'altra) thread.

In particolare, Parser::parse crea un vector di std::string s.

EDIT Come richiesto nel commento, questo è quello che ho letto, con [highlights]:

==2181==[Invalid read of size 1]
==2181==^{at 0x402C658: strlen (in /usr/lib/valgrind/vg...}
==2181==^{by 0x40FCC2D: std::basic_ostream<char, std::c...}
==2181==^{by 0x4054D4B: start_thread (pthread_create.c:...}
==2181==^{by 0x4269DDD: clone (clone.S:130)}
==2181==[Address 0x4359234]is 12 bytes inside[a block of size 21 free'd]
==2181==^{at 0x402ACFC: operator delete(void*) (in /usr...}
==2181==^{by 0x410899A: std::string::_Rep::_M_destroy(s...}
==2181==^{by 0x4071B37: void std::_Destroy_aux<false>::...}
==2181==^{by 0x40717DC: void std::_Destroy<std::string*...}
==2181==^{by 0x4071041: void std::_Destroy<std::string*...}
==2181== by 0x407088A: std::vector<std::string, std::a...[::~vector()](in /usr/lib/libparser.so
==2181== by 0x406F497:[Parser::parse(std::string)](in /usr/lib/libparser.so
==2181==^{by 0x40729E2: getMessage(int, Message**) (in ...}
==2181==^{by 0x804CB99: fifoThread(void*) (in /home/cle...}
==2181==^{by 0x4054D4B: start_thread (pthread_create.c:...}
==2181==^{by 0x4269DDD: clone (clone.S:130}

E ho notato che gli altri backtracec evidenziavano tutti lo stesso modello.

Apparentemente, alcuni thread iniziano, e vengono passati riferimenti (in) a queste stringhe. Tuttavia, poiché il vettore è locale su Parser::parse (probabilmente una variabile automatica o eliminato in modo esplicito), i riferimenti non sono più validi (ad esempio nel momento in cui le stringhe vengono trasmesse tramite lo std::ostream::operator<<(std::ostream&, const char*)).

Purtroppo, l'analisi dello stack abbastanza non mostrare ciò che nome/modulo oggetto contiene la riga incriminata, ma si può vedere che vive su un thread separato (a causa della presenza di start_thread)

Modifica Apparentemente , il/i thread/i prendono un riferimento allo string s (dal vettore) perché il thread è anche tenta di assegnare le stringhe a un altro string.

Ciò potrebbe indicare che il programmatore era consapevole del fatto che il punto di riferimento non era affidabile e prova a copiarlo su una variabile locale del thread. Forse è solo che c'è una condizione di competizione coinvolta e gli string s non vivono nemmeno abbastanza a lungo da far funzionare la copia locale.

IOW. Sembrerebbe che un thread viene avviato come tale:

#include <future> 
#include <algorithm> 
#include <sstream> 
#include <iterator> 
#include <iostream> 

using namespace std; 

// sample: return the largest integer value or 42 
int some_background_worker(vector<string> const& ref_data) 
{ 
    if (ref_data.empty()) return 42; 

    vector<int> values(ref_data.size()); 
    transform(begin(ref_data), end(ref_data), begin(values), 
      [](string const& s) { return stoi(s); }); 
    return *max_element(begin(values), end(values)); 
} 

struct Parser 
{ 
    future<int> parse(string const& msg) const 
    { 
     istringstream iss(msg); 
     istream_iterator<string> f(iss), l; 

     const vector<string> data { f, l }; 

     // now dispatch a thread to do the work 
     return async(some_background_worker, ref(data)); 
    } 
}; 

int main() // mimicks your "fifoThread" function 
{ 
    // we use a simple vector to stub your fifo queue: 
    const std::vector<string> fifoQueue { "1 3 9 -1 2", "32389 3102 -34 -888", "-42 -889", "" }; 

    vector<future<int>> results; 

    { 
     Parser parser; 
     for(auto& msg : fifoQueue) 
      results.push_back(parser.parse(msg)); 
    } 

    // all parser data has been throroughly destroyed, before we might even 
    // start the workers 
    for(auto& fut: results) 
     std::cout << "result of worker: " << fut.get() << "\n"; 
}

Qui, la stessa condizione di competizione si verifica, come un riferimento a "presto-to-be-stale" dati viene passato al thread:

async(some_background_worker, ref(data));

Si blocca con bad_alloc sul mio sistema (che è fasullo, ma perfettamente bene Comportamento indefinito).

Come ho detto sopra, la std :: string :: assegnare chiamate potrebbe indicare i tentativi di filo per copiare i dati a livello locale, come:

vector<string> local_copy(ref_data);

ma che ancora essere un data race, perché (senza sincronizzazione esplicita) non è garantito che ref_data sia valido anche a quel punto.

risolvere il problema da spostando i dati nella filettatura invece:

int some_background_worker(vector<string> data); 

// and then, in parse(...): 
    async(some_background_worker, std::move(data));

Ora, sul mio sistema, corre e stampe

result of worker: 9 
result of worker: 32389 
result of worker: -42 
result of worker: 42

completamente come previsto. Vedi in esecuzione live at Coliru

fonte

2013-07-27 15:57:36 sehe

Grazie mille. Hai individuato la posizione esatta in cui si verifica il danneggiamento. "Più in particolare, Parser :: parse crea un vettore di std :: stringhe." –

ma quello che ti fa dire questo, voglio dire, puoi elitarmi quei messaggi in modo che la prossima volta non abbia bisogno del tuo aiuto. –

@AmitBhaira Ho modificato la risposta mostrando come leggo i backtrace, con *** ['highlights'] *** che mostra le cose che attivano la mia analisi. Quindi, in tutta onestà, è stato Valgrind a individuare la fonte della corruzione :) – sehe

elenco doppio collegamento corrotto?

risposta

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