Unable to stop inside GPU kernel for debugging

[Sidarth]

I am new to SYCL programming and am trying out the array-transform program from the oneAPI-samples (https://github.com/oneapi-src/oneAPI-samples/tree/master/Tools/ApplicationDebugger/array-transform) and while running the program in gdb-oneapi, I am unable stop inside the kernel. I followed the procedure the setup the debugger and set necessary environment variables. 
Here is the output when I try to stop in a kernel of the array-transform code:

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Reading symbols from array-transform...
(gdb) break 54
Breakpoint 1 at 0x4070b3: file /work/snarayanan/save/SYCL/intel_vtune/oneAPI-samples/Tools/ApplicationDebugger/array-transform/src/array-transform.cpp, line 54.
(gdb) run gpu
Starting program: /mounts/work/snarayanan/save/SYCL/intel_vtune/oneAPI-samples/Tools/ApplicationDebugger/array-transform/builds/array-transform gpu
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffb2fff640 (LWP 19575)]
[Thread 0x7fffb2fff640 (LWP 19575) exited]
warning: Temporarily disabling breakpoints for unloaded shared library "/lib64/libze_intel_gpu.so.1"
[New Thread 0x7fffb2fff640 (LWP 19576)]
[New Thread 0x7fffb3b42640 (LWP 19577)]
[New Thread 0x7fff9afff640 (LWP 19578)]
[SYCL] Using device: [Intel(R) Data Center GPU Max 1100] from [Intel(R) OpenCL Graphics]
[New Thread 0x7fff997dd640 (LWP 19579)]
success; result is correct.
[Thread 0x7fff997dd640 (LWP 19579) exited]
[Thread 0x7fff9afff640 (LWP 19578) exited]
[Thread 0x7fffb3b42640 (LWP 19577) exited]
[Thread 0x7fffb2fff640 (LWP 19576) exited]
[Inferior 1 (process 19565) exited normally]

 Line 24 suggest that my break-point inside the kernel is disabled but I am not sure why that is the case (or) how to fix it.

Please let me known what I am missing here.

[Sergey_K_Intel3]

In addition to setting the ZET_ENABLE_PROGRAM_DEBUGGING environment variable, please make sure to configure the i915 debug support in Linux kernel as described here:

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