Hi In my search for reasons why I have crashes I started using AddressSanitizer with Clang (since that is native included) https://github.com/google/sanitizers/wiki/AddressSanitizer, Below the results which might indicate locations of possible trouble. Would there be interest into looking into these further? I know that some unitests under valgrind also complain about memory leaks just because items are not properly free/deleted since they are just tests. But the ceph-mon container-overflow and the .libs/ceph-dencoder double free are parts of the tree that are used outside the tests. But I still have to find the flags to actually get the translation to file codelines for this to be really useful. --WjW SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_isa+0x7fea8b) SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_plugin_isa+0x7e9d0b) SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_shec+0x8144cb) SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_shec_all+0x8021ab) SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_shec_thread+0x7fb78b) SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_shec_arguments+0x7fd74b) SUMMARY: AddressSanitizer: alloc-dealloc-mismatch (/usr/srcs/Ceph/work/ceph/src/unittest_erasure_code_plugin_shec+0x7e98db) SUMMARY: AddressSanitizer: heap-use-after-free (/usr/srcs/Ceph/work/ceph/src/unittest_pglog+0x92722f) SUMMARY: AddressSanitizer: dynamic-stack-buffer-overflow (/usr/srcs/Ceph/work/ceph/src/unittest_lfnindex+0x8ee69f) SUMMARY: AddressSanitizer: stack-buffer-overflow (/usr/srcs/Ceph/work/ceph/src/unittest_utf8+0x5ff392) SUMMARY: AddressSanitizer: container-overflow (/usr/srcs/Ceph/work/ceph/src/ceph-mon+0xb591b1) SUMMARY: AddressSanitizer: double-free (/usr/srcs/Ceph/work/ceph/src/.libs/ceph-dencoder+0x8b1fcb) -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html