Re: [boost] [asio] failure in ~wrapped_handler

From: Dean Michael C. Berris (dmberris_at_[hidden])
Date: 2008-06-27 05:41:09

Of course I should have attached the trace... ;)

--
Dean Michael Berris
Software Engineer, Friendster, Inc. 
> -----Original Message-----
> From: Dean Michael C. Berris 
> Sent: Friday, June 27, 2008 5:40 PM
> To: 'boost_at_[hidden]'
> Subject: [asio] failure in ~wrapped_handler
> 
> Hi everyone,
> 
> I recently ran into a problem with Boost.Asio while using a 
> slightly modified version of the HTTP 2 example server. The 
> debugger trace (attached) shows where a segfault had occurred 
> in the code.
> 
> The short of it is that when ~wrapped_handler is called, the 
> call to boost::detail::atomic_exchange_and_add fails when 
> boost::detail::sp_counted_base::release is invoked. It occurs 
> when a handler_wrapper is deleted/destructed 
> (~handler_wrapper is called) in the strand_service.
> 
> I'm just wondering what could be causing this -- it's worth 
> noting that under not-so-heavy load, the problem does not 
> manifest itself; but soon enough when the load on the server 
> goes up (more incoming connections) the server crashes consistently.
> 
> Any pointers where I should be looking? I'm using Boost.Trunk 
> revision number 43296.
> 
> --
> Dean Michael Berris
> Software Engineer, Friendster, Inc.