liste double-liée corrompue?

Je suis juste le débogage d'un grand projet et de et obtenez cette erreur

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

J'ai essayé de déboguer le code avec valgrind, mais je ne suis pas très familier avec cet outil. Donc, je suis le dumping les journaux d'ici, si vous pouvez trouver quelque chose d'eux s'il vous plaît laissez-moi savoir.

Quelqu'un peut-il expliquer ce que le message d'erreur suivant peut signifier?

==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==

source d'informationauteur Amit Bhaira

c++operating-system

24

Il ressemble à un fil de données d'impression (char* données de type caractère) qui a déjà été libéré sur-le-main (ou un autre) thread.

Plus spécifiquement, Parser::parse construit une vector de std::strings.

MODIFIER Comme demandé dans les commentaires, c'est ce que j'ai lu, avec [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}

Et j'ai remarqué l'autre backtracecs tous mis l'accent sur le même modèle.

Apparemment, certains thread(s) de commencer, et ils sont passés à des références (en)à ces chaînes. Cependant, depuis le vecteur local à Parser::parse (probablement une variable automatique, ou explicitement supprimé), les références ne sont plus valides (par exemple, au moment où les chaînes sont diffusées en continu à l'aide de std::ostream::operator<<(std::ostream&, const char*)).

Malheureusement, la trace de la pile n'est pas tout montrer ce nom/objet module contient la ligne incriminée, mais vous pouvez le voir, il vit sur un thread séparé (en raison de la présence de start_thread)

Modifier Apparemment, le fil(s) de prendre un référence à la strings (à partir du vecteur) parce que le fil est aussi essayez d'affecter les cordes à l'autre string.

Cela peut indiquer que le programmeur était conscient du fait que la référence n'était pas fiable, et essaie de le copier sur une variable locale de thread. Peut-être que c'est juste qu'il y a une condition de concurrence concernées et la strings ne même pas vivre assez longtemps pour que la copie locale de travailler.

OIE. Il semblerait qu'un thread est démarré en tant que tel:
```
#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";
}
```
Ici, la même condition de concurrence se produit, comme une référence à "bientôt-à-être vicié de données" est passé à la discussion:
```
async(some_background_worker, ref(data));
```
Il se bloque avec bad_alloc sur mon système (ce qui est faux, mais parfaitement bien à un Comportement indéterminé).

Comme je l'ai dit ci-dessus, le std::string::attribuer appels peut indiquer le thread tente de copier les données localement, comme:
```
vector<string> local_copy(ref_data);
```
Mais qui encore être un données courseparce que (sans synchronisation explicite) il n'y a aucune garantie que ref_data est valide, même à ce point.

Fixer par la déplacement les données dans le thread au lieu de cela:
```
int some_background_worker(vector<string> data);
//and then, in parse(...):
async(some_background_worker, std::move(data));
```
Maintenant, sur mon système, il s'exécute et imprime
```
result of worker: 9
result of worker: 32389
result of worker: -42
result of worker: 42
```
pleinement comme prévu. Voir fonctionner vivre à Coliru

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