Wt

This happens on latest Debian 8.11 distrib (fully updated).

Tried boost versions from 1.55 to 1.68, same result.

Tried WT 3 from GIT, same result.

Valgring log:

00:00:00:09.013 5314 Invalid write of size 1

00:00:00:09.013 5314 at 0x7FBE4FB: boost::asio::detail::scheduler::scheduler(boost::asio::execution_context&, int)

00:00:00:09.013 5314 by 0x869AB08: boost::asio::io_context::io_context(int) (io_context.ipp:44)

00:00:00:09.013 5314 by 0x869BBFE: boost::asio::detail::resolver_service_base::resolver_service_base(boost::asio::io_context&) (resolver_service_base.ipp:40)

00:00:00:09.013 5314 by 0x86A89DA: boost::asio::detail::resolver_serviceboost::asio::ip::tcp::resolver_service(boost::asio::io_context&) (resolver_service.hpp:58)

00:00:00:09.013 5314 by 0x86A76A2: boost::asio::execution_context::service* boost::asio::detail::service_registry::create<boost::asio::detail::resolver_serviceboost::asio::ip::tcp, boost::asio::io_context>(void*) (service_registry.hpp:87)

00:00:00:09.013 5314 by 0x7FBC63F: boost::asio::detail::service_registry::do_use_service(boost::asio::execution_context::service::key const&, boost::asio::execution_context::service* ()(void), void*)

00:00:00:09.013 5314 by 0x86A5BEA: boost::asio::detail::resolver_serviceboost::asio::ip::tcp& boost::asio::detail::service_registry::use_service<boost::asio::detail::resolver_serviceboost::asio::ip::tcp >(boost::asio::io_context&) (service_registry.hpp:39)

00:00:00:09.013 5314 by 0x86A4143: boost::asio::detail::resolver_serviceboost::asio::ip::tcp& boost::asio::use_service<boost::asio::detail::resolver_serviceboost::asio::ip::tcp >(boost::asio::io_context&) (io_context.hpp:39)

00:00:00:09.013 5314 by 0x86A234A: boost::asio::basic_io_object<boost::asio::detail::resolver_serviceboost::asio::ip::tcp >::basic_io_object(boost::asio::io_context&) (basic_io_object.hpp:117)

00:00:00:09.013 5314 by 0x869F4CA: boost::asio::ip::basic_resolverboost::asio::ip::tcp::basic_resolver(boost::asio::io_context&) (basic_resolver.hpp:101)

00:00:00:09.013 5314 by 0x8695F12: http::server::Server::start() (Server.C:154)

00:00:00:09.013 5314 by 0x8695691: http::server::Server::Server(http::server::Configuration const&, Wt::WServer&) (Server.C:123)

00:00:00:09.013 5314 Address 0x134c3c59 is 1 bytes after a block of size 232 alloc'd

00:00:00:09.013 5314 at 0x4C29180: operator new(unsigned long) (vg_replace_malloc.c:324)

00:00:00:09.013 5314 by 0x869AAF3: boost::asio::io_context::io_context(int) (io_context.ipp:44)

00:00:00:09.013 5314 by 0x869BBFE: boost::asio::detail::resolver_service_base::resolver_service_base(boost::asio::io_context&) (resolver_service_base.ipp:40)

00:00:00:09.013 5314 by 0x86A89DA: boost::asio::detail::resolver_serviceboost::asio::ip::tcp::resolver_service(boost::asio::io_context&) (resolver_service.hpp:58)

00:00:00:09.013 5314 by 0x86A76A2: boost::asio::execution_context::service* boost::asio::detail::service_registry::create<boost::asio::detail::resolver_serviceboost::asio::ip::tcp, boost::asio::io_context>(void*) (service_registry.hpp:87)

00:00:00:09.013 5314 by 0x7FBC63F: boost::asio::detail::service_registry::do_use_service(boost::asio::execution_context::service::key const&, boost::asio::execution_context::service* ()(void), void*)

00:00:00:09.013 5314 by 0x86A5BEA: boost::asio::detail::resolver_serviceboost::asio::ip::tcp& boost::asio::detail::service_registry::use_service<boost::asio::detail::resolver_serviceboost::asio::ip::tcp >(boost::asio::io_context&) (service_registry.hpp:39)

00:00:00:09.013 5314 by 0x86A4143: boost::asio::detail::resolver_serviceboost::asio::ip::tcp& boost::asio::use_service<boost::asio::detail::resolver_serviceboost::asio::ip::tcp >(boost::asio::io_context&) (io_context.hpp:39)

00:00:00:09.013 5314 by 0x86A234A: boost::asio::basic_io_object<boost::asio::detail::resolver_serviceboost::asio::ip::tcp >::basic_io_object(boost::asio::io_context&) (basic_io_object.hpp:117)

00:00:00:09.013 5314 by 0x869F4CA: boost::asio::ip::basic_resolverboost::asio::ip::tcp::basic_resolver(boost::asio::io_context&) (basic_resolver.hpp:101)

00:00:00:09.013 5314 by 0x8695F12: http::server::Server::start() (Server.C:154)

00:00:00:09.013 5314 by 0x8695691: http::server::Server::Server(http::server::Configuration const&, Wt::WServer&) (Server.C:123)