[TS-4956] Memory leaks in hostdb test

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.1.0
• Component/s: HostDB
• Assignee: Bryan Call
• Reporter: Bryan Call
• Created: 11/Oct/16 19:56
• Updated: 29/Nov/16 21:48
• Resolved: 29/Nov/16 21:48

Description

Memory leaks in hostdb test and there was an issue with the RefCountCache destructor.

==18648==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 96 byte(s) in 1 object(s) allocated from:
    #0 0x7f5e41866ea0 in operator new(unsigned long) (/lib64/libasan.so.3+0xc7ea0)
    #1 0x415c36 in testRefcounting() /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:130
    #2 0x40f066 in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:206
    #3 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

Direct leak of 31 byte(s) in 1 object(s) allocated from:
    #0 0x7f5e41865e60 in malloc (/lib64/libasan.so.3+0xc6e60)
    #1 0x4179ab in ExampleStruct::alloc(int) /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:48
    #2 0x4179ab in fillCache(RefCountCache<ExampleStruct>*, int, int) /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:81
    #3 0x40f3bd in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:229
    #4 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

Direct leak of 24 byte(s) in 1 object(s) allocated from:
    #0 0x7f5e41865e60 in malloc (/lib64/libasan.so.3+0xc6e60)
    #1 0x415c6b in ExampleStruct::alloc(int) /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:48
    #2 0x415c6b in testRefcounting() /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:133
    #3 0x40f066 in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:206
    #4 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

Direct leak of 24 byte(s) in 1 object(s) allocated from:
    #0 0x7f5e41865e60 in malloc (/lib64/libasan.so.3+0xc6e60)
    #1 0x415eee in ExampleStruct::alloc(int) /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:48
    #2 0x415eee in testRefcounting() /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:142
    #3 0x40f066 in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:206
    #4 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

Indirect leak of 1120 byte(s) in 4 object(s) allocated from:
    #0 0x7f5e41865e60 in malloc (/lib64/libasan.so.3+0xc6e60)
    #1 0x7f5e4156cf85 in ats_malloc /home/bcall/dev/apache/trafficserver/lib/ts/ink_memory.cc:59
    #2 0x411f36 in DefaultAlloc::alloc(int) ../../lib/ts/defalloc.h:34
    #3 0x411f36 in Vec<TSHashTable<RefCountCacheHashing>::Bucket, DefaultAlloc, 0>::set_expand() ../../lib/ts/Vec.h:781
    #4 0x411f36 in TSHashTable<RefCountCacheHashing>::TSHashTable(unsigned long) ../../lib/ts/Map.h:1516
    #5 0x411f36 in RefCountCachePartition<ExampleStruct>::RefCountCachePartition(unsigned int, unsigned long, unsigned int, RecRawStatBlock*) P_RefCountCache.h:166
    #6 0x411f36 in RefCountCache<ExampleStruct>::RefCountCache(unsigned int, int, int, VersionNumber, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) P_RefCountCache.h:441
    #7 0x415c46 in testRefcounting() /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:130
    #8 0x40f066 in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:206
    #9 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

Indirect leak of 832 byte(s) in 4 object(s) allocated from:
    #0 0x7f5e41866ea0 in operator new(unsigned long) (/lib64/libasan.so.3+0xc7ea0)
    #1 0x411b79 in RefCountCache<ExampleStruct>::RefCountCache(unsigned int, int, int, VersionNumber, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) P_RefCountCache.h:441
    #2 0x415c46 in testRefcounting() /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:130
    #3 0x40f066 in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:206
    #4 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

Indirect leak of 64 byte(s) in 1 object(s) allocated from:
    #0 0x7f5e41865e60 in malloc (/lib64/libasan.so.3+0xc6e60)
    #1 0x7f5e4156cf85 in ats_malloc /home/bcall/dev/apache/trafficserver/lib/ts/ink_memory.cc:59
    #2 0x41253b in DefaultAlloc::alloc(int) ../../lib/ts/defalloc.h:34
    #3 0x41253b in Vec<RefCountCachePartition<ExampleStruct>*, DefaultAlloc, 2>::reserve(unsigned long) ../../lib/ts/Vec.h:796
    #4 0x41253b in RefCountCache<ExampleStruct>::RefCountCache(unsigned int, int, int, VersionNumber, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >) P_RefCountCache.h:439
    #5 0x415c46 in testRefcounting() /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:130
    #6 0x40f066 in main /home/bcall/dev/apache/trafficserver/iocore/hostdb/test_RefCountCache.cc:206
    #7 0x7f5e3eadf730 in __libc_start_main (/lib64/libc.so.6+0x20730)

SUMMARY: AddressSanitizer: 2191 byte(s) leaked in 13 allocation(s).

Issue Links

• links to: GitHub Pull Request #1095