<div dir="ltr">+kuba, who ported tsan to OSX. <div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 21, 2016 at 1:26 PM, Chris Matthews <span dir="ltr"><<a href="mailto:chris.matthews@apple.com" target="_blank">chris.matthews@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Ah ha! I found crash reports:<div><br></div><div><br></div><div>green-dragon-03:DiagnosticReports buildslave$ cat mmap_stress.cc.tmp_2016-01-19-231335_green-dragon-03.crash <br>Process: mmap_stress.cc.tmp [95010]<br>Path: /Users/USER/*/mmap_stress.cc.tmp<br>Identifier: mmap_stress.cc.tmp<br>Version: 0<br>Code Type: X86-64 (Native)<br>Parent Process: bash [95004]<br>User ID: 501<br><br>Date/Time: 2016-01-19 23:13:22.169 -0800<br>OS Version: Mac OS X 10.10.5 (14F27)<br>Report Version: 11<br>Anonymous UUID: DFD97AE9-5E0B-44AD-8848-A057000D1FEC<br><br><br>Time Awake Since Boot: 9700000 seconds<br><br>Crashed Thread: 21<br></div></div></blockquote><div><br></div><div>^^^^^^^^^^^^^^^</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><br>Exception Type: EXC_BAD_ACCESS (SIGSEGV)<br>Exception Codes: EXC_I386_GPFLT<br><br>Thread 0:: Dispatch queue: com.apple.main-thread<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915da syscall_thread_switch + 10<br>1 libsystem_platform.dylib <span style="white-space:pre-wrap"> </span>0x00007fff965f982d _OSSpinLockLockSlow + 63<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5e4d __sanitizer::BlockingMutex::Lock() + 29<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063db7bb __sanitizer::ThreadRegistry::CreateThread(unsigned long, bool, unsigned int, void*) + 43<br><br>Thread 1:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f9648a __semwait_signal + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106393a0e wrap_nanosleep + 94<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063c2bea __tsan::BackgroundThread(void*) + 346<br><br>Thread 2:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f9648a __semwait_signal + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395650 wrap_pthread_join + 224<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x000000010639531a __tsan_thread_start_func + 122<br>3 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5bfd7 _pthread_start + 176<br>4 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b593ed thread_start + 13<br><br>Thread 3:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f9648a __semwait_signal + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395650 wrap_pthread_join + 224<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x000000010639531a __tsan_thread_start_func + 122<br>3 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5bfd7 _pthread_start + 176<br>4 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b593ed thread_start + 13<br><br>Thread 4:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915da syscall_thread_switch + 10<br>1 libsystem_platform.dylib <span style="white-space:pre-wrap"> </span>0x00007fff965f982d _OSSpinLockLockSlow + 63<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5e4d __sanitizer::BlockingMutex::Lock() + 29<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063dc076 __sanitizer::ThreadRegistry::FinishThread(unsigned int) + 22<br><br>Thread 5:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395495 wrap_pthread_create + 341<br>4 ??? <span style="white-space:pre-wrap"> </span>0x0000000000002009 0 + 8201<br><br>Thread 6:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395495 wrap_pthread_create + 341<br>4 ??? <span style="white-space:pre-wrap"> </span>0x000000000000200c 0 + 8204<br><br>Thread 7:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395495 wrap_pthread_create + 341<br>4 ??? <span style="white-space:pre-wrap"> </span>0x0000000000002006 0 + 8198<br><br>Thread 8:<br>0 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063cb015 __tsan::MetaMap::FreeRange(__tsan::ThreadState*, unsigned long, unsigned long, unsigned long) + 149<br><br>Thread 9:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395495 wrap_pthread_create + 341<br>4 ??? <span style="white-space:pre-wrap"> </span>0x0000000000004006 0 + 16390<br><br>Thread 10:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106395495 wrap_pthread_create + 341<br>4 ??? <span style="white-space:pre-wrap"> </span>0x0000000000002006 0 + 8198<br><br>Thread 11:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f95eda __mmap + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063e0404 __sanitizer::MmapFixedNoReserve(unsigned long, unsigned long, char const*) + 100<br><br>Thread 12:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f95f9a __munmap + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106394fb6 wrap_munmap + 134<br>2 ??? <span style="white-space:pre-wrap"> </span>0x0000000000002000 0 + 8192<br><br>Thread 13:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f95eda __mmap + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063e0404 __sanitizer::MmapFixedNoReserve(unsigned long, unsigned long, char const*) + 100<br><br>Thread 14:<br>0 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063b8759 __tsan::CreateThreadContext(unsigned int) + 233<br><br>Thread 15:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f95f9a __munmap + 10<br>1 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5846 __sanitizer::internal_munmap(void*, unsigned long) + 6<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d6bcf __sanitizer::UnmapOrDie(void*, unsigned long) + 31<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063ba734 __tsan::MemoryRangeSet(__tsan::ThreadState*, unsigned long, unsigned long, unsigned long, unsigned long long) + 612<br>4 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x0000000106394f20 wrap_mmap + 496<br>5 ??? <span style="white-space:pre-wrap"> </span>0x0000000000002000 0 + 8192<br><br>Thread 16:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915da syscall_thread_switch + 10<br>1 libsystem_platform.dylib <span style="white-space:pre-wrap"> </span>0x00007fff965f982d _OSSpinLockLockSlow + 63<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5e4d __sanitizer::BlockingMutex::Lock() + 29<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063dc1ef __sanitizer::ThreadRegistry::StartThread(unsigned int, unsigned long, void*) + 31<br><br>Thread 17:<br>0 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063cb018 __tsan::MetaMap::FreeRange(__tsan::ThreadState*, unsigned long, unsigned long, unsigned long) + 152<br><br>Thread 18:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063952e5 __tsan_thread_start_func + 69<br>4 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5bfd7 _pthread_start + 176<br>5 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b593ed thread_start + 13<br><br>Thread 19:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063952e5 __tsan_thread_start_func + 69<br>4 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5bfd7 _pthread_start + 176<br>5 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b593ed thread_start + 13<br><br>Thread 20:<br>0 libsystem_kernel.dylib <span style="white-space:pre-wrap"> </span>0x00007fff98f915c2 swtch_pri + 10<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5d381 sched_yield + 11<br>2 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063d5946 __sanitizer::internal_sched_yield() + 6<br>3 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063952e5 __tsan_thread_start_func + 69<br>4 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5bfd7 _pthread_start + 176<br>5 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b593ed thread_start + 13<br><br>Thread 21 Crashed:<br></div></div></blockquote><div> </div><div>^^^^^^^^^^^^^ </div><div><br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>0 libclang_rt.tsan_osx_dynamic.dylib<span style="white-space:pre-wrap"> </span>0x00000001063cbe01 wrap_OSSpinLockLock + 17<br>1 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b5bfd7 _pthread_start + 176<br>2 libsystem_pthread.dylib <span style="white-space:pre-wrap"> </span>0x00007fff93b593ed thread_start + 13<br><br>Thread 21 crashed with X86 Thread State (64-bit):<br> rax: 0x00486000000025df rbx: 0x00000001095ea000 rcx: 0x00486000000025df rdx: 0x0000000000000000<br> rdi: 0x00007fff7d4472d8 rsi: 0x0000000000000000 rbp: 0x00000001095e9f10 rsp: 0x00000001095e9ec0<br> r8: 0x00000000000028df r9: 0x0000000000083000 r10: 0x0000000000000000 r11: 0x0000000000000206<br> r12: 0x000000000000200f r13: 0x00000000000008ff r14: 0x00007fff7d4472d8 r15: 0x00000001063952a0<br> rip: 0x00000001063cbe01 rfl: 0x0000000000010202 cr2: 0x00003100849e0000<br> <br>Logical CPU: 0<br>Error Code: 0x00000000<br>Trap Number: 13<br><br><br>Binary Images:<br> 0x106387000 - 0x106387ff7 +mmap_stress.cc.tmp (0) <A98F81CD-CE7F-3DD1-9C04-79A188AA7340> /Users/USER/*/mmap_stress.cc.tmp<br> 0x10638e000 - 0x1063fdff7 +libclang_rt.tsan_osx_dynamic.dylib (0) <D1A58E40-8472-3DFE-85F3-3E1430258010> /Users/USER/*/libclang_rt.tsan_osx_dynamic.dylib<br> 0x7fff69ba0000 - 0x7fff69bd6887 dyld (353.2.3) <B1B370A5-479F-3533-8AD7-97B687D4F989> /usr/lib/dyld<br> 0x7fff8ca26000 - 0x7fff8ca27ff7 libsystem_blocks.dylib (65) <9615D10A-FCA7-3BE4-AA1A-1B195DACE1A1> /usr/lib/system/libsystem_blocks.dylib<br> 0x7fff8d4d6000 - 0x7fff8d4dbfff libsystem_stats.dylib (163.30.2) <D0E96837-3CF6-323D-B711-6DF6F660E530> /usr/lib/system/libsystem_stats.dylib<br> 0x7fff8d4dc000 - 0x7fff8d4dcff7 libkeymgr.dylib (28) <77845842-DE70-3CC5-BD01-C3D14227CED5> /usr/lib/system/libkeymgr.dylib<br> 0x7fff8d55d000 - 0x7fff8d75746f libobjc.A.dylib (647) <759E155D-BC42-3D4E-869B-6F57D477177C> /usr/lib/libobjc.A.dylib<br> 0x7fff8dab1000 - 0x7fff8dabcfff libcommonCrypto.dylib (60061.30.1) <E789748D-F9A7-3CFF-B317-90DF348B1E95> /usr/lib/system/libcommonCrypto.dylib<br> 0x7fff8dd4b000 - 0x7fff8dd53ffb libcopyfile.dylib (118.1.2) <0C68D3A6-ACDD-3EF3-991A-CC82C32AB836> /usr/lib/system/libcopyfile.dylib<br> 0x7fff8de1e000 - 0x7fff8de23ff7 libmacho.dylib (862) <126CA2ED-DE91-308F-8881-B9DAEC3C63B6> /usr/lib/system/libmacho.dylib<br> 0x7fff8e1e8000 - 0x7fff8e274fe7 libsystem_c.dylib (1044.40.1) <F0635E0F-FE4B-34DB-ACF9-A58C1E9070E9> /usr/lib/system/libsystem_c.dylib<br> 0x7fff8e9df000 - 0x7fff8e9e7fff libsystem_dnssd.dylib (576.30.4) <0CEB5910-843F-315C-A1DE-5D955A48A045> /usr/lib/system/libsystem_dnssd.dylib<br> 0x7fff8eb0d000 - 0x7fff8eb13ff7 libsystem_networkextension.dylib (167.40.3) <BA58B30B-8377-3B0A-8AE3-4F84021D9D4E> /usr/lib/system/libsystem_networkextension.dylib<br> 0x7fff8eb18000 - 0x7fff8eb1efff libsystem_trace.dylib (72.20.1) <840F5301-B55A-3078-90B9-FEFFD6CD741A> /usr/lib/system/libsystem_trace.dylib<br> 0x7fff8f494000 - 0x7fff8f494ff7 libunc.dylib (29) <5676F7EA-C1DF-329F-B006-D2C3022B7D70> /usr/lib/system/libunc.dylib<br> 0x7fff8f513000 - 0x7fff8f515fff libsystem_sandbox.dylib (358.20.5) <3F5E973F-C702-31AC-97BC-05F5C195683C> /usr/lib/system/libsystem_sandbox.dylib<br> 0x7fff8f54d000 - 0x7fff8f55eff3 libsystem_coretls.dylib (35.40.1) <155DA0A9-2046-332E-BFA3-D7974A51F731> /usr/lib/system/libsystem_coretls.dylib<br> 0x7fff8f55f000 - 0x7fff8f566ff7 libcompiler_rt.dylib (35) <BF8FC133-EE10-3DA6-9B90-92039E28678F> /usr/lib/system/libcompiler_rt.dylib<br> 0x7fff8fb97000 - 0x7fff8fbb3ff7 libsystem_malloc.dylib (53.30.1) <DDA8928B-CC0D-3255-BD8A-3FEA0982B890> /usr/lib/system/libsystem_malloc.dylib<br> 0x7fff90410000 - 0x7fff90411ff3 libSystem.B.dylib (1213) <1866C519-C5F3-3D09-8C17-A8F703664521> /usr/lib/libSystem.B.dylib<br> 0x7fff9195d000 - 0x7fff91985fff libxpc.dylib (559.40.1) <5C829202-962E-3744-8B50-00D38CC88E84> /usr/lib/system/libxpc.dylib<br> 0x7fff928f9000 - 0x7fff9290fff7 libsystem_asl.dylib (267) <F153AC5B-0542-356E-88C8-20A62CA704E2> /usr/lib/system/libsystem_asl.dylib<br> 0x7fff92c13000 - 0x7fff92c16ff7 libdyld.dylib (353.2.3) <CFBBE540-D503-3AFC-B5D6-644F1E69949B> /usr/lib/system/libdyld.dylib<br> 0x7fff93b58000 - 0x7fff93b61fff libsystem_pthread.dylib (105.40.1) <ACE90967-ECD0-3251-AEEB-461E3C6414F7> /usr/lib/system/libsystem_pthread.dylib<br> 0x7fff93b62000 - 0x7fff93b8cff7 libdispatch.dylib (442.1.4) <502CF32B-669B-3709-8862-08188225E4F0> /usr/lib/system/libdispatch.dylib<br> 0x7fff94527000 - 0x7fff94530ff7 libsystem_notify.dylib (133.1.1) <61147800-F320-3DAA-850C-BADF33855F29> /usr/lib/system/libsystem_notify.dylib<br> 0x7fff94531000 - 0x7fff94531ff7 liblaunch.dylib (559.40.1) <4F81CA3A-D2CE-3030-A89D-42F3DAD7BA8F> /usr/lib/system/liblaunch.dylib<br> 0x7fff94535000 - 0x7fff94539fff libcache.dylib (69) <45E9A2E7-99C4-36B2-BEE3-0C4E11614AD1> /usr/lib/system/libcache.dylib<br> 0x7fff94bd6000 - 0x7fff94bd8ff7 libsystem_coreservices.dylib (9) <41B7C578-5A53-31C8-A96F-C73E030B0938> /usr/lib/system/libsystem_coreservices.dylib<br> 0x7fff965f6000 - 0x7fff965fefff libsystem_platform.dylib (63) <64E34079-D712-3D66-9CE2-418624A5C040> /usr/lib/system/libsystem_platform.dylib<br> 0x7fff984d8000 - 0x7fff98551fe7 libcorecrypto.dylib (233.30.1) <5779FFA0-4D9A-3AD4-B7F2-618227621DC8> /usr/lib/system/libcorecrypto.dylib<br> 0x7fff98935000 - 0x7fff98936fff libDiagnosticMessagesClient.dylib (100) <2EE8E436-5CDC-34C5-9959-5BA218D507FB> /usr/lib/libDiagnosticMessagesClient.dylib<br> 0x7fff98f80000 - 0x7fff98f9dfff libsystem_kernel.dylib (2782.40.9) <16AD15EF-3DAE-3F63-9D26-26CCE1920762> /usr/lib/system/libsystem_kernel.dylib<br> 0x7fff98fb1000 - 0x7fff98fb3fff libquarantine.dylib (76.20.1) <7AF90041-2768-378A-925A-D83161863642> /usr/lib/system/libquarantine.dylib<br> 0x7fff991f1000 - 0x7fff99219fff libsystem_info.dylib (459.40.1) 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/usr/lib/system/libunwind.dylib<br> 0x7fff9b69d000 - 0x7fff9b6f1fff libc++.1.dylib (120) <1B9530FD-989B-3174-BB1C-BDC159501710> /usr/lib/libc++.1.dylib<br> 0x7fff9c06c000 - 0x7fff9c06dfff libsystem_secinit.dylib (18) <581DAD0F-6B63-3A48-B63B-917AF799ABAA> /usr/lib/system/libsystem_secinit.dylib<br><br>External Modification Summary:<br> Calls made by other processes targeting this process:<br> task_for_pid: 0<br> thread_create: 0<br> thread_set_state: 0<br> Calls made by this process:<br> task_for_pid: 0<br> thread_create: 0<br> thread_set_state: 0<br> Calls made by all processes on this machine:<br> task_for_pid: 3447975<br> thread_create: 0<br> thread_set_state: 143262<br><br><br>System Profile:<br>AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x10E), Broadcom BCM43xx 1.0 (7.15.166.24.3)<br>Bluetooth: Version 4.3.6f3 16238, 3 services, 27 devices, 1 incoming serial ports<br>Thunderbolt Bus: Mac mini, Apple Inc., 23.4<br>Memory Module: BANK 0/DIMM0, 8 GB, DDR3, 1600 MHz, 0x802C, 0x31364B544631473634485A2D314736453220<br>Memory Module: BANK 1/DIMM0, 8 GB, DDR3, 1600 MHz, 0x802C, 0x31364B544631473634485A2D314736453220<br>USB Device: Hub<br>USB Device: Hub<br>USB Device: Hub<br>USB Device: BRCM20702 Hub<br>USB Device: Bluetooth USB Host Controller<br>USB Device: IR Receiver<br>Serial ATA Device: APPLE SSD SM256E, 251 GB<br>Model: Macmini6,2, BootROM MM61.0106.B09, 4 processors, Intel Core i7, 2.6 GHz, 16 GB, SMC 2.8f1<br>Network Service: Ethernet, Ethernet, en0<br>Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In<br><br></div><div><div class="h5"><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br><div><blockquote type="cite"><div>On Jan 21, 2016, at 1:20 PM, Chris Matthews via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:</div><br><div><div style="word-wrap:break-word">The lit test directly pipes the output into the check, and does not store it in a temporary file.<div><br></div><div>Last week, I ran this test in a loop for 8 hours on a machine right after it failed in a build. It did not reproduce. Do you have any suggestions for reproducing? Maybe we need to have the system under more stress before running the test?</div><div><br><div><blockquote type="cite"><div>On Jan 20, 2016, at 1:41 PM, Kostya Serebryany <<a href="mailto:kcc@google.com" target="_blank">kcc@google.com</a>> wrote:</div><br><div><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 20, 2016 at 1:31 PM, Chris Matthews <span dir="ltr"><<a href="mailto:chris.matthews@apple.com" target="_blank">chris.matthews@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">I worded that poorly, the Jenkins check I added will explain to the user that we know this fails sometimes.<div><div><div><br><div><blockquote type="cite"><div>On Jan 20, 2016, at 1:30 PM, Chris Matthews <<a href="mailto:chris.matthews@apple.com" target="_blank">chris.matthews@apple.com</a>> wrote:</div><br><div><div style="word-wrap:break-word">I have added a Jenkins check for this test, which explains why it fails on some builds.<div><br></div><div>Can we change the test to keep its output? Will it just be blank anyways?</div></div></div></blockquote></div></div></div></div></div></blockquote><div><br></div><div>The test simply prints everything to stdout. </div><div>It's the lit driver that hides the output. </div><div><br></div><div>Maybe someone with a Mac can run this test manually (with exact same build command line)</div><div>a few thousand times? I continue to suspect a kernel bug. </div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><div><div><div><blockquote type="cite"><div><div style="word-wrap:break-word"><div><br><div><blockquote type="cite"><div>On Jan 20, 2016, at 1:23 PM, Kostya Serebryany <<a href="mailto:kcc@google.com" target="_blank">kcc@google.com</a>> wrote:</div><br><div><div dir="ltr">The test fails again: <a href="http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9739/testReport/junit/ThreadSanitizer/ThreadSanitizer/mmap_stress_cc/" target="_blank">http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA_check/9739/testReport/junit/ThreadSanitizer/ThreadSanitizer/mmap_stress_cc/</a><div>But unfortunately lit does not provide the original log, so we still don't know why... </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Jan 13, 2016 at 1:11 PM, Chris Matthews <span dir="ltr"><<a href="mailto:chris.matthews@apple.com" target="_blank">chris.matthews@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">These ran to completion without error. :(<div><div><div><br><div><blockquote type="cite"><div>On Jan 12, 2016, at 3:23 PM, Chris Matthews <<a href="mailto:chris.matthews@apple.com" target="_blank">chris.matthews@apple.com</a>> wrote:</div><br><div><div style="word-wrap:break-word">I’m running this on green-dragon-03 which is running OSX 10.10.5.<div><br></div><div><div style="margin:0px;font-size:12px;line-height:normal;font-family:Monaco;color:rgb(245,245,245);background-color:rgb(0,0,0)">/Users/buildslave/jenkins/sharedspace/clang-stage1-cmake-RA_workspace\@2/clang-build/bin/clang++ ../llvm/projects/compiler-rt/test/tsan/mmap_stress.cc -lpthread </div><div style="margin:0px;font-size:12px;line-height:normal;font-family:Monaco;color:rgb(245,245,245);background-color:rgb(0,0,0)">while true; do for((i=0;i<10;i++)); do ./a.out || echo ===============FAILED================ & done ; wait; done</div></div><div><br></div><div>Seems like it is getting about 225 runs a minute, so it will take about 8 hours to complete 100k runs.</div><div><br><div><blockquote type="cite"><div>On Jan 12, 2016, at 1:28 PM, Tobias Grosser via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:</div><br><div><div>On 01/12/2016 10:26 PM, Kostya Serebryany wrote:<br><blockquote type="cite">Hi Tobias,<br><br>What machine is that?<br>We have seen this and similar tests be flaky on older Linux kernels due<br>to kernel bug(s).<br>May I ask you to run the same test (just built with clang) on the same<br>machine for ~100000 times and see if it ever crashes?<br><br>clang++ ~/llvm/projects/compiler-rt/test/tsan/mmap_stress.cc -lpthread<br>while true; do for((i=0;i<10;i++)); do ./a.out || echo<br>===============FAILED================ & done ; wait; done<br></blockquote><br>Add Michael again (who might have access to this Machine).<br><br>Tobias<br>_______________________________________________<br>LLVM Developers mailing list<br><a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a><br><a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a><br></div></div></blockquote></div><br></div></div></div></blockquote></div><br></div></div></div></div></blockquote></div><br></div>
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