Check Crash app on QML

Currently, I'm checking a bug crash app. I have used valgrind to run my app and this is output when app crash:

==9064== Process terminating with default action of signal 11 (SIGSEGV)
==9064== Bad permissions for mapped region at address 0x28D42D90
==9064== at 0x28D42D90: ??? (in /memfd:JITCode:/usr/lib/libQt5Qml.so.5 (deleted))
==9064==
==9064== HEAP SUMMARY:
==9064== in use at exit: 87,985,958 bytes in 201,320 blocks
==9064== total heap usage: 44,074,841 allocs, 43,873,521 frees, 5,543,628,161 bytes allocated
==9064==
==9064== LEAK SUMMARY:
==9064== definitely lost: 52,601 bytes in 1,046 blocks
==9064== indirectly lost: 53,405 bytes in 1,597 blocks
==9064== possibly lost: 843,043 bytes in 1,820 blocks
==9064== still reachable: 86,870,157 bytes in 194,980 blocks
==9064== of which reachable via heuristic:
==9064== stdstring : 30 bytes in 1 blocks
==9064== length64 : 9,976 bytes in 109 blocks
==9064== newarray : 613,568 bytes in 467 blocks
==9064== multipleinheritance: 60,360 bytes in 227 blocks
==9064== suppressed: 0 bytes in 0 blocks
==9064== Rerun with --leak-check=full to see details of leaked memory
==9064==
==9064== For counts of detected and suppressed errors, rerun with: -v
==9064== Use --track-origins=yes to see where uninitialised values come from
==9064== ERROR SUMMARY: 10000000 errors from 348 contexts (suppressed: 1683647 from 106)
Segmentation fault (core dumped)

Does any one can guide me how can I check which function on my qml source code that caught this crash ?

Thanks!