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https://issues.apache.org/jira/browse/TS-4067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15237916#comment-15237916
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John Rushford commented on TS-4067:
-----------------------------------
@jpeach @zwoop - fixed the bulk of the memory leaks, see the pull request.
> Memory leaks in parent selection regression tests
> -------------------------------------------------
>
> Key: TS-4067
> URL: https://issues.apache.org/jira/browse/TS-4067
> Project: Traffic Server
> Issue Type: Bug
> Components: Quality, Tests
> Reporter: James Peach
> Assignee: John Rushford
> Fix For: 7.0.0
>
>
> {code}
> $ sudo env MallocStackLogging=1 ./proxy/traffic_server -R 1 -r PARENTSELECTION
> ...
> leaks Report Version: 2.0
> Process 94249: 30288 nodes malloced for 53365 KB
> Failed to map remote region: [0x7ffffffcd000-0x7ffffffce000] r-x shared
> memory (1 page) [root] (error: 1)
> Process 94249: 502 leaks for 577728 total leaked bytes.
> Leak: 0x1081f000 size=299008 zone: DefaultMallocZone_0xcf5f000
> 0x00000001 0x00000000 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> ...
> Call stack: [thread 0x7fff7c1c0000]: | start | main Main.cc:1793 |
> HostDBProcessor::start(int, unsigned long) HostDB.cc:531 |
> ClassAllocator<HostDBContinuation>::alloc() Allocator.h:122 |
> ink_freelist_new ink_queue.cc:181 | freelist_new(_InkFreeList*)
> ink_queue.cc:211 | ats_memalign ink_memory.cc:100 | posix_memalign |
> malloc_zone_memalign
> Leak: 0x11c4e000 size=262144 zone: DefaultMallocZone_0xcf5f000
> 0x00000001 0x00000000 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> 0xefbeadde 0xefbeadde 0xefbeadde 0xefbeadde ................
> ...
> Call stack: [thread 0x700000287000]: | thread_start | _pthread_body |
> _pthread_body | spawn_thread_internal(void*) Thread.cc:87 |
> EThread::execute() UnixEThread.cc:200 | EThread::process_event(Event*, int)
> UnixEThread.cc:128 | Continuation::handleEvent(int, void*)
> I_Continuation.h:146 | RegressionCont::mainEvent(int, Event*) Main.cc:1248 |
> RegressionTest::run(char*) Regression.cc:105 | RegressionTest::run_some()
> Regression.cc:126 | start_test(RegressionTest*) Regression.cc:79 |
> RegressionTest_PARENTSELECTION(RegressionTest*, int, int*)
> ParentSelection.cc:1023 | br(HttpRequestData*, char const*, sockaddr const*)
> ParentSelection.cc:1114 | HTTPHdr::create(HTTPType, HdrHeap*) HTTP.h:802 |
> new_HdrHeap(int) HdrHeap.cc:121 | thread_alloc(Allocator&, ProxyAllocator&)
> ProxyAllocator.cc:41 | Allocator::alloc_void() Allocator.h:63 |
> ink_freelist_new ink_queue.cc:181 | freelist_new(_InkFreeList*)
> ink_queue.cc:211 | ats_memalign ink_memory.cc:100 | posix_memalign |
> malloc_zone_memalign
> Leak: 0x7ff172d1cfd0 size=16 zone: DefaultMallocZone_0xcf5f000 length: 15
> "i.am.rabbit.net"
> Call stack: [thread 0x700000287000]: | thread_start | _pthread_body |
> _pthread_body | spawn_thread_internal(void*) Thread.cc:87 |
> EThread::execute() UnixEThread.cc:200 | EThread::process_event(Event*, int)
> UnixEThread.cc:128 | Continuation::handleEvent(int, void*)
> I_Continuation.h:146 | RegressionCont::mainEvent(int, Event*) Main.cc:1248 |
> RegressionTest::run(char*) Regression.cc:105 | RegressionTest::run_some()
> Regression.cc:126 | start_test(RegressionTest*) Regression.cc:79 |
> RegressionTest_PARENTSELECTION(RegressionTest*, int, int*)
> ParentSelection.cc:1023 | br(HttpRequestData*, char const*, sockaddr const*)
> ParentSelection.cc:1114 | _xstrdup ink_memory.cc:225 | ats_malloc
> ink_memory.cc:54 | malloc | malloc_zone_malloc
> Leak: 0x7ff172d1e230 size=16 zone: DefaultMallocZone_0xcf5f000
> 0x00000000 0x00000000 0xffffffff 0x00010100 ................
> {code}
> I think most of the leaks are from the sloppy implementation of the
> regression test, but I haven't looked at them all carefully. We should fix
> the regressions so that real problems are visible.
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