https://community.intel.com/t5/OpenCL-for-CPU/clSetMemObjectDestructorCallback-calls-callback-with-invalid-mem/m-p/983060#M2600 <P>Hi everyone,</P> <P>I wrote a little wrapper for clMemoryObjects in which I set a callback for buffer/memory destruction via clSetMemObjectDestructorCallback (actually it's the C++ wrapper equivalent).</P> <P>When the callback is called, however, and I want to query the cl_mem, which is passed to the callback by the API, I sometimes get an error code Of "-38" -&gt; CL_INVALID_MEM_OBJECT. The application is basically single threaded, so I don't see, where the object should have been destroyed elswhere.</P> <P>I am also using other OpenCL platforms, in which the code workd properly, so I'm wondering where to look next for my bug.</P> <P>Best regards</P> <P>Matthias&nbsp;</P> Sun, 25 Aug 2013 02:01:58 GMT Matthias_H_4 2013-08-25T02:01:58Z https://community.intel.com/t5/OpenCL-for-CPU/clSetMemObjectDestructorCallback-calls-callback-with-invalid-mem/m-p/983060#M2600 <P>Hi everyone,</P> <P>I wrote a little wrapper for clMemoryObjects in which I set a callback for buffer/memory destruction via clSetMemObjectDestructorCallback (actually it's the C++ wrapper equivalent).</P> <P>When the callback is called, however, and I want to query the cl_mem, which is passed to the callback by the API, I sometimes get an error code Of "-38" -&gt; CL_INVALID_MEM_OBJECT. The application is basically single threaded, so I don't see, where the object should have been destroyed elswhere.</P> <P>I am also using other OpenCL platforms, in which the code workd properly, so I'm wondering where to look next for my bug.</P> <P>Best regards</P> <P>Matthias&nbsp;</P> Sun, 25 Aug 2013 02:01:58 GMT https://community.intel.com/t5/OpenCL-for-CPU/clSetMemObjectDestructorCallback-calls-callback-with-invalid-mem/m-p/983060#M2600 Matthias_H_4 2013-08-25T02:01:58Z https://community.intel.com/t5/OpenCL-for-CPU/clSetMemObjectDestructorCallback-calls-callback-with-invalid-mem/m-p/983061#M2601 <P>Duplicate post.</P> Tue, 27 Aug 2013 18:42:50 GMT https://community.intel.com/t5/OpenCL-for-CPU/clSetMemObjectDestructorCallback-calls-callback-with-invalid-mem/m-p/983061#M2601 Raghupathi_M_Intel 2013-08-27T18:42:50Z