Re: [Cppcms-users] URGENT: strange bug ocurring

[<ele...@ex...>]

Using helgrind

I get this

==12488== Possible data race during write of size 8 at 0x69b0008 by thread #6
==12488==    at 0x6717A90: std::locale::locale(std::locale::_Impl*) (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x671B1DE: std::locale::classic() (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x546F82F:
booster::log::message::message(booster::log::level_type, char const*, char
const*, int) (log.cpp:57)
==12488==    by 0x4ED819D:
cppcms::http::details::output_device::write(char const*, int)
(http_response.cpp:279)
==12488==    by 0x4ED83E6:
cppcms::http::details::basic_obuf<cppcms::http::details::output_device>::overflow(int)
(http_response.cpp:131)
==12488==    by 0x6756214: std::basic_streambuf<char,
std::char_traits<char> >::xsputn(char const*, long) (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x4ED5589: cppcms::http::response::finalize() (streambuf:427)
==12488==    by 0x4EDB40C: cppcms::http::context::complete_response()
(http_context.cpp:117)
==12488==    by 0x4EDB8F0:
cppcms::http::context::dispatch(booster::intrusive_ptr<cppcms::application>,
std::string, bool) (http_context.cpp:156)
==12488==    by 0x4EDD172: booster::function<void
()()>::callable_impl<void, cppcms_boost::_bi::bind_t<void, void
(*)(booster::intrusive_ptr<cppcms::application>, std::string, bool),
cppcms_boost::_bi::list3<cppcms_boost::_bi::value<booster::intrusive_ptr<cppcms::application>
>, cppcms_boost::_bi::value<std::string>, cppcms_boost::_bi::value<bool> >
> >::call() (bind.hpp:385)
==12488==    by 0x4EDEDD4: cppcms::impl::thread_pool::worker()
(function.h:168)
==12488==    by 0x54E227C: booster_thread_func (function.h:168)
==12488==  This conflicts with a previous write of size 8 by thread #9
==12488==    at 0x6717A90: std::locale::locale(std::locale::_Impl*) (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x671B1DE: std::locale::classic() (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x4ED8F05: std::string
cppcms::http::details::itoa<int>(int) (http_response.cpp:51)
==12488==    by 0x4ED63C4: cppcms::http::response::status(int, std::string
const&) (http_response.cpp:632)
==12488==    by 0x4ED65DB: cppcms::http::response::status(int)
(http_response.cpp:628)
==12488==    by 0x4EFF5D5: cppcms::impl::file_server::show404()
(internal_file_server.cpp:453)
==12488==    by 0x4F006F7: cppcms::impl::file_server::main(std::string)
(internal_file_server.cpp:424)
==12488==    by 0x4EDB840:
cppcms::http::context::dispatch(booster::intrusive_ptr<cppcms::application>,
std::string, bool) (http_context.cpp:131)
==12488==
==12488== Possible data race during write of size 8 at 0x69b0008 by thread #6
==12488==    at 0x6717A90: std::locale::locale(std::locale::_Impl*) (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x671B1DE: std::locale::classic() (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x547127A:
booster::log::sinks::format_plain_text_message(booster::log::message
const&) (log.cpp:268)
==12488==    by 0x547197A:
booster::log::sinks::standard_error::log(booster::log::message const&)
(log.cpp:314)
==12488==    by 0x546E880: booster::log::logger::log(booster::log::message
const&) (log.cpp:229)
==12488==    by 0x546E920: booster::log::message::~message() (log.cpp:62)
==12488==    by 0x4ED81CE:
cppcms::http::details::output_device::write(char const*, int)
(http_response.cpp:279)
==12488==    by 0x4ED83E6:
cppcms::http::details::basic_obuf<cppcms::http::details::output_device>::overflow(int)
(http_response.cpp:131)
==12488==    by 0x6756214: std::basic_streambuf<char,
std::char_traits<char> >::xsputn(char const*, long) (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x4ED5589: cppcms::http::response::finalize() (streambuf:427)
==12488==    by 0x4EDB40C: cppcms::http::context::complete_response()
(http_context.cpp:117)
==12488==    by 0x4EDB8F0:
cppcms::http::context::dispatch(booster::intrusive_ptr<cppcms::application>,
std::string, bool) (http_context.cpp:156)
==12488==  This conflicts with a previous write of size 8 by thread #9
==12488==    at 0x6717A90: std::locale::locale(std::locale::_Impl*) (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x671B1DE: std::locale::classic() (in
/usr/lib/libstdc++.so.6.0.13)
==12488==    by 0x4ED8F05: std::string
cppcms::http::details::itoa<int>(int) (http_response.cpp:51)
==12488==    by 0x4ED63C4: cppcms::http::response::status(int, std::string
const&) (http_response.cpp:632)
==12488==    by 0x4ED65DB: cppcms::http::response::status(int)
(http_response.cpp:628)
==12488==    by 0x4EFF5D5: cppcms::impl::file_server::show404()
(internal_file_server.cpp:453)
==12488==    by 0x4F006F7: cppcms::impl::file_server::main(std::string)
(internal_file_server.cpp:424)
==12488==    by 0x4EDB840:
cppcms::http::context::dispatch(booster::intrusive_ptr<cppcms::application>,
std::string, bool) (http_context.cpp:131)


I also get a lot of these:

==12515== Use of uninitialised value of size 8
==12515==    at 0x545B29D:
booster::aio::io_service::set_timer_event(booster::ptime const&,
booster::callback<void ()(booster::system::error_code const&)> const&)
(io_service.cpp:216)
==12515==    by 0x5459E71:
booster::aio::deadline_timer::async_wait(booster::callback<void
()(booster::system::error_code const&)> const&) (deadline_timer.cpp:95)
==12515==    by 0x4F80394:
cppcms::impl::cgi::http_watchdog::check(booster::system::error_code
const&) (http_api.cpp:728)
==12515==    by 0x545A261:
booster::aio::deadline_timer::waiter::operator()(booster::system::error_code
const&) (callback.h:211)
==12515==    by 0x545E5DD:
booster::aio::event_loop_impl::run_one(booster::aio::reactor::event*,
unsigned long) (callback.h:201)
==12515==    by 0x545BD0F: booster::aio::io_service::run()
(io_service.cpp:144)
==12515==    by 0x4EB6AA4: cppcms::service::run() (service.cpp:574)
==12515==    by 0x476CE5: main (main.cpp:23)


I keep looking for more