Re: [boost] [shared_Ptr] [1.34] URGENT: Outstanding HP-UX/itaniumbug

From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-09-07 19:02:42

Boris Gubenko wrote:
> It segfaults, with and without -O0:
>
> Program received signal SIGSEGV, Segmentation fault
>  si_code: 1 - SEGV_MAPERR - Address not mapped to object.
> 0x408b831 in
> boost::detail::sp_counted_impl_pd<n_report_2::foo*,n_report_2::deleter>::boost::detail::sp_counted_impl_pd<n_report_2::
> foo*,n_report_2::deleter> (
>    this=0x40014c30, p=0x40014bd0, d={<No data fields>})
>    at sp_counted_impl.hpp:140

The relevant portion of shared_ptr_test seems to be n_report_2, reproduced 
below; it seems that the fault is occuring at the very first line of test(). 
I really can't see anything wrong with it; the test passes on every other 
platform.

class foo
{
public:

    void setWeak(boost::shared_ptr<foo> s)
    {
        w = s;
    }

private:

    boost::weak_ptr<foo> w;
};

class deleter
{
public:

    deleter(): lock(0)
    {
    }

    ~deleter()
    {
        BOOST_TEST(lock == 0);
    }

    void operator() (foo * p)
    {
        ++lock;
        delete p;
        --lock;
    }

private:

    int lock;
};

void test()
{
    boost::shared_ptr<foo> s(new foo, deleter());
    s->setWeak(s);
    s.reset();
}