Segfault in HPHP::ObjectData::release()

[mappu]

(gdb) bt
#0  0x0000000000ae9fc0 in HPHP::ObjectData::release() ()
#1  0x00000000011e5ec8 in HPHP::UserSessionModule::open(char const*, char const*) ()
#2  0x00000000011e0dc1 in HPHP::f_session_start() ()
#3  0x0000000000d31f45 in void HPHP::VMExecutionContext::dispatchImpl<4>(int) ()
#4  0x0000000000cb3d2d in HPHP::VMExecutionContext::enterVM(HPHP::TypedValue*, HPHP::ActRec*) ()
#5  0x0000000000cb47f7 in HPHP::VMExecutionContext::invokeFunc(HPHP::TypedValue*, HPHP::Func const*, HPHP::Array const&, HPHP::ObjectData*, HPHP::Class*, HPHP::VarEnv*, HPHP::StringData*, HPHP::VMExecutionContext::InvokeFlags) ()
#6  0x0000000000cb5505 in HPHP::VMExecutionContext::invokeUnit(HPHP::TypedValue*, HPHP::Unit*) ()
#7  0x0000000000b36027 in HPHP::invoke_file(HPHP::String const&, bool, char const*) ()
#8  0x0000000000b37032 in HPHP::include_impl_invoke(HPHP::String const&, bool, char const*) ()
#9  0x0000000000b29b69 in HPHP::hphp_invoke(HPHP::ExecutionContext*, std::string const&, bool, HPHP::Array const&, HPHP::VRefParamValue const&, std::string const&, std::string const&, bool&, std::string&, bool, bool, bool) ()
#10 0x0000000000c85b40 in HPHP::HttpRequestHandler::executePHPRequest(HPHP::Transport*, HPHP::RequestURI&, HPHP::SourceRootInfo&, bool) ()
#11 0x0000000000c87304 in HPHP::HttpRequestHandler::handleRequest(HPHP::Transport*) ()
#12 0x0000000000fab568 in HPHP::LibEventWorker::doJobImpl(boost::shared_ptr<HPHP::LibEventJob>, bool) ()
#13 0x0000000000fab7da in HPHP::LibEventWorker::doJob(boost::shared_ptr<HPHP::LibEventJob>) ()
#14 0x0000000000fa8d38 in HPHP::JobQueueWorker<boost::shared_ptr<HPHP::LibEventJob>, true, false, HPHP::JobQueueDropVMStack>::start() ()
#15 0x0000000000ea7917 in HPHP::AsyncFuncImpl::threadFuncImpl() ()
#16 0x0000000000ea7ab0 in HPHP::AsyncFuncImpl::ThreadFunc(void*) ()
#17 0x00007ffff2bdfe0e in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#18 0x00007ffff0cb995d in clone () from /lib/x86_64-linux-gnu/libc.so.6

This one i can get perfectly reliably, but only on the exactly third web request.

[danslo]

All your issues are duplicates of #990.

Probably want to close them and further discuss there.

[mappu]

OK, that's plausible. Thanks!