Hello, currently boost-stacktrace with the <code class="notranslate"

Unfortunately, it's not a bug but a feature: <div class="Box Box

Should that be static and not <code class="notranslat

Memory leak due to calling `backtrace_create_state` multiple times about stacktrace HOT 3 CLOSED

Cogitri commented on June 19, 2024

Memory leak due to calling `backtrace_create_state` multiple times

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Comments (3)

apolukhin commented on June 19, 2024 1

Oops, thanks!

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apolukhin commented on June 19, 2024

Unfortunately, it's not a bug but a feature:

stacktrace/include/boost/stacktrace/detail/libbacktrace_impls.hpp

Lines 74 to 85 in 08d720a

 // TODO: The most obvious solution: 

 // 

 //static ::backtrace_state* state = ::backtrace_create_state( 

 // prog_location.name(), 

 // 1, // allow safe concurrent usage of the same state 

 // boost::stacktrace::detail::libbacktrace_error_callback, 

 // 0 // pointer to data that will be passed to callback 

 //); 

 // 

 // 

 // Unfortunately, that solution segfaults when `construct_state()` function is in .so file 

 // and multiple threads concurrently work with state.

There's some issue either with the packaged versions of libbacktrace, or some issue in the libbacktrace with some compiler flags that I failed to localize https://gcc.gnu.org/bugzilla//show_bug.cgi?id=87653

I have to add more docs and references into the sources and provide a macro to force single instance for those' who wish to take the risk

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pergraa-celonis commented on June 19, 2024

Should that be static and not ststic here?
308b7f6#diff-1f3dccb3928ad7b52e4c986270cb619b663197283b764c2fb68256d285f21a3fR124

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Memory leak due to calling `backtrace_create_state` multiple times about stacktrace HOT 3 CLOSED

Comments (3)

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	// TODO: The most obvious solution:
	//
	//static ::backtrace_state* state = ::backtrace_create_state(
	// prog_location.name(),
	// 1, // allow safe concurrent usage of the same state
	// boost::stacktrace::detail::libbacktrace_error_callback,
	// 0 // pointer to data that will be passed to callback
	//);
	//
	//
	// Unfortunately, that solution segfaults when `construct_state()` function is in .so file
	// and multiple threads concurrently work with state.