corrupted double-linked list?
c++, operating-system
Solution
It looks like a thread is printing data (`char*` character data) that was already freed on the main (or another) thread.
More specificly, `Parser::parse` builds a `vector` of `std::string`s.
EDIT As requested in the comment, this is what I read, with [`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`
And I noticed the other backtracecs all highlighted the same pattern.
Apparently, some thread(s) get started, and they are passed references (in)to these strings. However, since the vector is local to `Parser::parse` (probably an automatic variable, or explicitely deleted), the references are no longer valid (e.g. at the time the strings are being streamed using `std::ostream::operator<<(std::ostream&, const char*)`).
Sadly, the stack trace doesn't quite show what name/object module contains the offending line, but you can see it lives on a separate thread (due to the presence of `start_thread`)
Edit Apparently, the thread(s) take a reference to the `string`s (from the vector) because the thread is also trying to assign the strings to another `string`.
This might indicate that the programmer was aware of the fact that the refence was not reliable and tries to copy it to a thread-local variable. Maybe it's just that there's a race condition involved and the `string`s don't even live long enough for the local copy to work.
IOW. It would appear that a thread is being started as such:
#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";
}
Here, the same race condition occurs, as a reference to "soon-to-be-stale" data is passed to the thread:
async(some_background_worker, ref(data));
It crashes with `bad_alloc` on my system (which is bogus, but perfectly fine Undefined Behaviour).
Like I said above, the std::string::assign calls might indicate the thread attempts to copy the data locally, like:
vector<string> local_copy(ref_data);
But that will still be a data race, because (without explicit synchronization) there is no guarantee that `ref_data` is valid even at that point.
Fix it by moving the data into the thread instead:
int some_background_worker(vector<string> data);
// and then, in parse(...):
async(some_background_worker, std::move(data));
Now, on my system, it runs and prints
result of worker: 9
result of worker: 32389
result of worker: -42
result of worker: 42
fully as expected. See it running live at Coliru
Problem
I am just debugging a big project and and getting this error ``` *** glibc detected *** p_appmanager/obj/appmanager: corrupted double-linked list: 0x08325e18 ** ``` I have tried to debug the code with the valgrind, but I am not much familiar with this tool. So I am dumping the logs here if you can find out anything from them please let me know. Can anyone explain what the following error message could mean? ``` ==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== ```