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On 12/20/2016 02:21 AM, Norbert Thiebaud wrote:
Analysis of sampling idlc (pid 3535) every 1 millisecond
Process:         idlc [3535]
Path:
/Users/tdf/lode/jenkins/workspace/lo_gerrit/Config/macosx_clang_dbgutil/instdir/LibreOffice5.4_SDK/bin/idlc
Load Address:    0x108408000
Identifier:      idlc
Version:         0
Code Type:       X86-64
Parent Process:  idlc [3503]

Date/Time:       2016-12-19 19:05:16.839 -0600
OS Version:      Mac OS X 10.9.5 (13F1077)
Report Version:  7

Call graph:
    2391 Thread_117354590: Main Thread   DispatchQueue_<multiple>
      2391 thread_start  (in libsystem_pthread.dylib) + 13  [0x7fff93ae5fc9]
        2391 _pthread_start  (in libsystem_pthread.dylib) + 137
[0x7fff93ae172a]
          2391 _pthread_body  (in libsystem_pthread.dylib) + 138
[0x7fff93ae1899]
            2391 osl_thread_start_Impl(void*)  (in libuno_sal.dylib.3)
+ 335  [0x1085c352f]  thread.cxx:240
              2391 ChildStatusProc(void*)  (in libuno_sal.dylib.3) +
8863  [0x1085ab35f]  process.cxx:208
                2391 std::__1::basic_ostream<char,
std::__1::char_traits<char> >&
std::__1::operator<<<std::__1::char_traits<char>
(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, char
const*)  (in libuno_sal.dylib.3) + 68  [0x10852e674]  ostream:882

idlc spawns a child process exec'ing ucpp; this backtrace is apparently from that child process, doing

            SAL_INFO("sal.osl", "ChildStatusProc : starting " << data.m_pszArgs[0]);

(sal/osl/unx/process.cxx:208) before calling execv. Why that std::ostringstream operator << would go into an endless loop allocating (ever more?) memory (if that is what that "Analysis of sampling idlc" claims), I have no idea. Would need further debugging.

Context


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