id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
5763,Segmentation fault in ASIO signal handler,Vladislav <phprus@…>,chris_kohlhoff,"Hello!

I am using boost asio 1.47.0 to system signal handler.
If using compiler Intel Composer XE 12.0.1 and optimization level greater -01 segmentation fault occurs in file boost/asio/detail/signal_handler.hpp:67.
In code line:
{{{
boost_asio_handler_invoke_helpers::invoke(handler, handler.handler_);
}}}

If insert before this line ""sleep(0)"" or write to stdout ASIO work normal.
If using GCC 4.1.2, 4.3.4, 4.5.0, 4.6.1(MinGW) and Intel C++ 11.1 code work normal.

I noticed that the ICC and GCC use different versions of fenced_block and replaced gcc_x86_fenced_block to gcc_sync_fenced_block in ICC then error is gone.

Function __sync_lock_test_and_set is available in the ICC since version 11.0, I wrote the appropriate patch.",Patches,closed,To Be Determined,asio,Boost 1.47.0,Problem,fixed,,