basic_managed_shared_memory::grow() do not return when using raw pointers

[pliniofpa]

When trying to grow the shared memory that is using raw pointers (instead of boost::interprocess::offset_ptr) the grow() function blocks and never returns.

How to reproduce:

#include <boost/interprocess/managed_shared_memory.hpp>
#include <boost/interprocess/shared_memory_object.hpp>
#include <iostream>
#include <thread>

namespace bip            = boost::interprocess;
using shm_raw_ptr_t      = bip::basic_managed_shared_memory<char,bip::rbtree_best_fit< bip::mutex_family, void*>, bip::iset_index>;
using shm_offset_ptr_t   = bip::basic_managed_shared_memory<char,bip::rbtree_best_fit< bip::mutex_family, bip::offset_ptr<void> >, bip::iset_index>;

int main() {
    using myShmType = shm_raw_ptr_t;
    constexpr auto base_address = 0x7fff956e5000;
    const char* name = "shm_grow_test";  
    bip::shared_memory_object::remove(name);
    size_t sizeInBytes = 1L*1024;
    auto shm = myShmType(bip::open_or_create, name, sizeInBytes, (void*)base_address);

    for(int i = 0; i < 10; i++) {
        sizeInBytes = sizeInBytes * 25L/100L;
        std::cout << "BEFORE GROW" << std::endl;
        myShmType::grow(name, sizeInBytes);
        std::cout << "AFTER GROW" << std::endl;
        shm = myShmType();
        shm = myShmType(bip::open_only, name , (void*)base_address);
        std::this_thread::sleep_for(std::chrono::milliseconds(1000));        
    }
    return 0;
}

Changing the first line inside main to: using myShmType = shm_offset_ptr_t; to create a managed shared memory segment using boost::interprocess::offset_ptr instead of raw pointers will work properly.

Environment Information: Boost Version: 1.85

cat /etc/os-release NAME="Oracle Linux Server" VERSION="8.5" ID="ol" ID_LIKE="fedora" VARIANT="Server" VARIANT_ID="server" VERSION_ID="8.5" PLATFORM_ID="platform:el8" PRETTY_NAME="Oracle Linux Server 8.5" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:oracle:linux:8:5:server" HOME_URL="https://linux.oracle.com/" BUG_REPORT_URL="https://bugzilla.oracle.com/" g++ --version g++ (GCC) 8.5.0 20210514 (Red Hat 8.5.0-16.0.2)