Memory Leaks in tests: LeakSanitizer: 13486 byte(s) leaked in 38 allocation(s). about rust-rocksdb

[siddontang]

@andelf
What is the more detailed output for these leaks?

/cc @zhangjinpeng1987

[andelf]

Indirect leak of 2699 byte(s) in 1 object(s) allocated from:
    #0 0x5644c8fa249f in operator new[](unsigned long) /checkout/src/compiler-rt/lib/lsan/lsan_interceptors.cc:191 (discriminator 2)
    #1 0x5644c8fa249f in ?? ??:0
    #2 0x7f2f50e1bc1b in rocksdb::UncompressBlockContentsForCompressionType(char const*, unsigned long, rocksdb::BlockContents*, unsigned int, rocksdb::Slice const&, rocksdb::CompressionType, rocksdb::ImmutableCFOptions const&) /hom
e/pingcap/workspace/rocksdb/table/format.cc:439
    #3 0x7f2f50e1bc1b in ?? ??:0
    #4 0x7f2f50e1c0c7 in rocksdb::UncompressBlockContents(char const*, unsigned long, rocksdb::BlockContents*, unsigned int, rocksdb::Slice const&, rocksdb::ImmutableCFOptions const&) /home/pingcap/workspace/rocksdb/table/format.cc:
546
    #5 0x7f2f50e1c0c7 in ?? ??:0
    #6 0x7f2f50e1cd33 in rocksdb::ReadBlockContents(rocksdb::RandomAccessFileReader*, rocksdb::Footer const&, rocksdb::ReadOptions const&, rocksdb::BlockHandle const&, rocksdb::BlockContents*, rocksdb::ImmutableCFOptions const&, boo
l, rocksdb::Slice const&, rocksdb::PersistentCacheOptions const&) /home/pingcap/workspace/rocksdb/table/format.cc:394
    #7 0x7f2f50e1cd33 in ?? ??:0
    #8 0x7f2f50e04765 in rocksdb::(anonymous namespace)::ReadBlockFromFile(rocksdb::RandomAccessFileReader*, rocksdb::Footer const&, rocksdb::ReadOptions const&, rocksdb::BlockHandle const&, std::unique_ptr<rocksdb::Block, std::defa
ult_delete<rocksdb::Block> >*, rocksdb::ImmutableCFOptions const&, bool, rocksdb::Slice const&, rocksdb::PersistentCacheOptions const&, unsigned long, unsigned long) [clone .constprop.266] /home/pingcap/workspace/rocksdb/table/block
_based_table_reader.cc:85
    #9 0x7f2f50e04765 in ?? ??:0
    #10 0x7f2f50e06734 in rocksdb::BlockBasedTable::MaybeLoadDataBlockToCache(rocksdb::BlockBasedTable::Rep*, rocksdb::ReadOptions const&, rocksdb::BlockHandle const&, rocksdb::Slice, rocksdb::BlockBasedTable::CachableEntry<rocksdb:
:Block>*, bool) /home/pingcap/workspace/rocksdb/table/block_based_table_reader.cc:1366
    #11 0x7f2f50e06734 in ?? ??:0
    #12 0x7f2f50e069eb in rocksdb::BlockBasedTable::NewDataBlockIterator(rocksdb::BlockBasedTable::Rep*, rocksdb::ReadOptions const&, rocksdb::BlockHandle const&, rocksdb::BlockIter*, bool, rocksdb::Status) /home/pingcap/workspace/r
ocksdb/table/block_based_table_reader.cc:1280
    #13 0x7f2f50e069eb in ?? ??:0
    #14 0x7f2f50e06f68 in rocksdb::BlockBasedTable::NewDataBlockIterator(rocksdb::BlockBasedTable::Rep*, rocksdb::ReadOptions const&, rocksdb::Slice const&, rocksdb::BlockIter*, bool) /home/pingcap/workspace/rocksdb/table/block_base
d_table_reader.cc:1260
    #15 0x7f2f50e06f68 in ?? ??:0
    #16 0x7f2f50e0f0cf in rocksdb::BlockBasedTable::Get(rocksdb::ReadOptions const&, rocksdb::Slice const&, rocksdb::GetContext*, bool) /home/pingcap/workspace/rocksdb/table/block_based_table_reader.cc:1652
    #17 0x7f2f50e0f0cf in ?? ??:0
    #18 0x7f2f50d66487 in rocksdb::TableCache::Get(rocksdb::ReadOptions const&, rocksdb::InternalKeyComparator const&, rocksdb::FileDescriptor const&, rocksdb::Slice const&, rocksdb::GetContext*, rocksdb::HistogramImpl*, bool, int)
/home/pingcap/workspace/rocksdb/db/table_cache.cc:379
    #19 0x7f2f50d66487 in ?? ??:0
    #20 0x7f2f50d83d3e in rocksdb::Version::Get(rocksdb::ReadOptions const&, rocksdb::LookupKey const&, rocksdb::PinnableSlice*, rocksdb::Status*, rocksdb::MergeContext*, rocksdb::RangeDelAggregator*, bool*, bool*, unsigned long*) /
home/pingcap/workspace/rocksdb/db/version_set.cc:1006
    #21 0x7f2f50d83d3e in ?? ??:0
    #22 0x7f2f50cdd254 in rocksdb::DBImpl::GetImpl(rocksdb::ReadOptions const&, rocksdb::ColumnFamilyHandle*, rocksdb::Slice const&, rocksdb::PinnableSlice*, bool*) /home/pingcap/workspace/rocksdb/db/db_impl.cc:975
    #23 0x7f2f50cdd254 in ?? ??:0
    #24 0x7f2f50cdd8c1 in rocksdb::DBImpl::Get(rocksdb::ReadOptions const&, rocksdb::ColumnFamilyHandle*, rocksdb::Slice const&, rocksdb::PinnableSlice*) /home/pingcap/workspace/rocksdb/db/db_impl.cc:902
    #25 0x7f2f50cdd8c1 in ?? ??:0
    #26 0x5644c9006850 in crocksdb_get_pinned /home/pingcap/workspace/rust-rocksdb/librocksdb_sys/crocksdb/c.cc:2881
    #27 0x5644c9006850 in ?? ??:0

Indirect leak of 4096 byte(s) in 32 object(s) allocated from:
    #0 0x5644c8fa249f in operator new[](unsigned long) /checkout/src/compiler-rt/lib/lsan/lsan_interceptors.cc:191 (discriminator 2)
    #1 0x5644c8fa249f in ?? ??:0
    #2 0x7f2f50c83775 in rocksdb::LRUHandleTable::Resize() /home/pingcap/workspace/rocksdb/cache/lru_cache.cc:83
    #3 0x7f2f50c83775 in ?? ??:0
    #4 0x7f2f50c83939 in rocksdb::LRUCacheShard::LRUCacheShard() /home/pingcap/workspace/rocksdb/cache/lru_cache.cc:105
    #5 0x7f2f50c83939 in ?? ??:0
    #6 0x7f2f50c84097 in rocksdb::LRUCache::LRUCache(unsigned long, int, bool, double) /home/pingcap/workspace/rocksdb/cache/lru_cache.cc:444 (discriminator 7)
    #7 0x7f2f50c84097 in ?? ??:0
    #8 0x7f2f50c8422f in void __gnu_cxx::new_allocator<rocksdb::LRUCache>::construct<rocksdb::LRUCache, unsigned long&, int&, bool&, double&>(rocksdb::LRUCache*, unsigned long&, int&, bool&, double&) /usr/include/c++/5/ext/new_alloc
ator.h:120
    #9 0x7f2f50c8422f in void std::allocator_traits<std::allocator<rocksdb::LRUCache> >::construct<rocksdb::LRUCache, unsigned long&, int&, bool&, double&>(std::allocator<rocksdb::LRUCache>&, rocksdb::LRUCache*, unsigned long&, int&
, bool&, double&) /usr/include/c++/5/bits/alloc_traits.h:530
    #10 0x7f2f50c8422f in std::_Sp_counted_ptr_inplace<rocksdb::LRUCache, std::allocator<rocksdb::LRUCache>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<unsigned long&, int&, bool&, double&>(std::allocator<rocksdb::LRUCache
>, unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr_base.h:522
    #11 0x7f2f50c8422f in std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<rocksdb::LRUCache, std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::_Sp_make_shared_tag, rocksdb::LRUCache*, std:
:allocator<rocksdb::LRUCache> const&, unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr_base.h:617
    #12 0x7f2f50c8422f in std::__shared_ptr<rocksdb::LRUCache, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::_Sp_make_shared_tag, std::allocator<rocksdb::LRUC
ache> const&, unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr_base.h:1097
    #13 0x7f2f50c8422f in std::shared_ptr<rocksdb::LRUCache>::shared_ptr<std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::_Sp_make_shared_tag, std::allocator<rocksdb::LRUCache> const&, unsigned long&, in
t&, bool&, double&) /usr/include/c++/5/bits/shared_ptr.h:319
    #14 0x7f2f50c8422f in std::shared_ptr<rocksdb::LRUCache> std::allocate_shared<rocksdb::LRUCache, std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::allocator<rocksdb::LRUCache> const&, unsigned long&,
int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr.h:620
    #15 0x7f2f50c8422f in std::shared_ptr<rocksdb::LRUCache> std::make_shared<rocksdb::LRUCache, unsigned long&, int&, bool&, double&>(unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr.h:636
    #16 0x7f2f50c8422f in rocksdb::NewLRUCache(unsigned long, int, bool, double) /home/pingcap/workspace/rocksdb/cache/lru_cache.cc:489
    #17 0x7f2f50c8422f in ?? ??:0
    #18 0x5644c90059e3 in crocksdb_cache_create_lru /home/pingcap/workspace/rust-rocksdb/librocksdb_sys/crocksdb/c.cc:2487
    #19 0x5644c90059e3 in ?? ??:0
    #20 0x5644c8fff058 in rocksdb::rocksdb_options::{{impl}}::set_lru_cache /home/pingcap/workspace/rust-rocksdb/src/rocksdb_options.rs:74
    #21 0x5644c8fff058 in ?? ??:0
    #22 0x5644c8f5fc97 in test::test_rocksdb_options::test_get_block_cache_usage /home/pingcap/workspace/rust-rocksdb/tests/test_rocksdb_options.rs:259
    #23 0x5644c8f5fc97 in ?? ??:0
    #24 0x5644c8f79901 in test::run_test::{{closure}} /checkout/src/libtest/lib.rs:1452
    #25 0x5644c8f79901 in core::ops::function::FnOnce::call_once<closure,(())> /checkout/src/libcore/ops/function.rs:143
    #26 0x5644c8f79901 in test::{{impl}}::call_box<(),closure> /checkout/src/libtest/lib.rs:140
    #27 0x5644c8f79901 in ?? ??:0
    #28 0x5644c9044b9c in panic_unwind::__rust_maybe_catch_panic /checkout/src/libpanic_unwind/lib.rs:98
    #29 0x5644c9044b9c in ?? ??:0
    #30 0x5644c8f692dc in std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> /checkout/src/libstd/panicking.rs:433
    #31 0x5644c8f692dc in std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> /checkout/src/libstd/panic.rs:361
    #32 0x5644c8f692dc in test::run_test::run_test_inner::{{closure}} /checkout/src/libtest/lib.rs:1391
。。。。

Indirect leak of 6408 byte(s) in 1 object(s) allocated from:
    #0 0x5644c8fa249f in operator new[](unsigned long) /checkout/src/compiler-rt/lib/lsan/lsan_interceptors.cc:191 (discriminator 2)
    #1 0x5644c8fa249f in ?? ??:0
    #2 0x7f2f50c84073 in rocksdb::LRUCache::LRUCache(unsigned long, int, bool, double) /home/pingcap/workspace/rocksdb/cache/lru_cache.cc:444 (discriminator 4)
    #3 0x7f2f50c84073 in ?? ??:0
    #4 0x7f2f50c8422f in void __gnu_cxx::new_allocator<rocksdb::LRUCache>::construct<rocksdb::LRUCache, unsigned long&, int&, bool&, double&>(rocksdb::LRUCache*, unsigned long&, int&, bool&, double&) /usr/include/c++/5/ext/new_alloc
ator.h:120
    #5 0x7f2f50c8422f in void std::allocator_traits<std::allocator<rocksdb::LRUCache> >::construct<rocksdb::LRUCache, unsigned long&, int&, bool&, double&>(std::allocator<rocksdb::LRUCache>&, rocksdb::LRUCache*, unsigned long&, int&
, bool&, double&) /usr/include/c++/5/bits/alloc_traits.h:530
    #6 0x7f2f50c8422f in std::_Sp_counted_ptr_inplace<rocksdb::LRUCache, std::allocator<rocksdb::LRUCache>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<unsigned long&, int&, bool&, double&>(std::allocator<rocksdb::LRUCache>
, unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr_base.h:522
    #7 0x7f2f50c8422f in std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<rocksdb::LRUCache, std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::_Sp_make_shared_tag, rocksdb::LRUCache*, std::
allocator<rocksdb::LRUCache> const&, unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr_base.h:617
    #8 0x7f2f50c8422f in std::__shared_ptr<rocksdb::LRUCache, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::_Sp_make_shared_tag, std::allocator<rocksdb::LRUCa
che> const&, unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr_base.h:1097
    #9 0x7f2f50c8422f in std::shared_ptr<rocksdb::LRUCache>::shared_ptr<std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::_Sp_make_shared_tag, std::allocator<rocksdb::LRUCache> const&, unsigned long&, int
&, bool&, double&) /usr/include/c++/5/bits/shared_ptr.h:319
    #10 0x7f2f50c8422f in std::shared_ptr<rocksdb::LRUCache> std::allocate_shared<rocksdb::LRUCache, std::allocator<rocksdb::LRUCache>, unsigned long&, int&, bool&, double&>(std::allocator<rocksdb::LRUCache> const&, unsigned long&,
int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr.h:620
    #11 0x7f2f50c8422f in std::shared_ptr<rocksdb::LRUCache> std::make_shared<rocksdb::LRUCache, unsigned long&, int&, bool&, double&>(unsigned long&, int&, bool&, double&) /usr/include/c++/5/bits/shared_ptr.h:636
    #12 0x7f2f50c8422f in rocksdb::NewLRUCache(unsigned long, int, bool, double) /home/pingcap/workspace/rocksdb/cache/lru_cache.cc:489
    #13 0x7f2f50c8422f in ?? ??:0
    #14 0x5644c90059e3 in crocksdb_cache_create_lru /home/pingcap/workspace/rust-rocksdb/librocksdb_sys/crocksdb/c.cc:2487
    #15 0x5644c90059e3 in ?? ??:0
    #16 0x5644c8fff058 in rocksdb::rocksdb_options::{{impl}}::set_lru_cache /home/pingcap/workspace/rust-rocksdb/src/rocksdb_options.rs:74
    #17 0x5644c8fff058 in ?? ??:0
    #18 0x5644c8f5fc97 in test::test_rocksdb_options::test_get_block_cache_usage /home/pingcap/workspace/rust-rocksdb/tests/test_rocksdb_options.rs:259
    #19 0x5644c8f5fc97 in ?? ??:0
    #20 0x5644c8f79901 in test::run_test::{{closure}} /checkout/src/libtest/lib.rs:1452
    #21 0x5644c8f79901 in core::ops::function::FnOnce::call_once<closure,(())> /checkout/src/libcore/ops/function.rs:143
    #22 0x5644c8f79901 in test::{{impl}}::call_box<(),closure> /checkout/src/libtest/lib.rs:140
    #23 0x5644c8f79901 in ?? ??:0
    #24 0x5644c9044b9c in panic_unwind::__rust_maybe_catch_panic /checkout/src/libpanic_unwind/lib.rs:98
    #25 0x5644c9044b9c in ?? ??:0
    #26 0x5644c8f692dc in std::panicking::try<(),std::panic::AssertUnwindSafe<closure>> /checkout/src/libstd/panicking.rs:433
    #27 0x5644c8f692dc in std::panic::catch_unwind<std::panic::AssertUnwindSafe<closure>,()> /checkout/src/libstd/panic.rs:361
    #28 0x5644c8f692dc in test::run_test::run_test_inner::{{closure}} /checkout/src/libtest/lib.rs:1391
    #29 0x5644c8f692dc in std::sys_common::backtrace::__rust_begin_short_backtrace<closure,()> /checkout/src/libstd/sys_common/backtrace.rs:136
    #30 0x5644c8f692dc in ?? ??:0
。。。。。

[andelf]

This is a memory leak in LRUCache. fixed by #78.