[GitHub] [incubator-brpc] niukuo opened a new issue #859: 链接jemalloc后可能会有死锁的问题

[GitBox <gi...@apache.org>]

niukuo opened a new issue #859: 链接jemalloc后可能会有死锁的问题
URL: https://github.com/apache/incubator-brpc/issues/859
 
 
   **Describe the bug (描述bug)**
   jemalloc在申请内存时会有lock/unlock操作，brpc劫持了pthread_mutex_unlock函数后在submit_contention里面又有内存操作，导致出现死锁。
   
   **To Reproduce (复现方法)**
   在内存操作时有小概率出现。
   
   **Expected behavior (期望行为)**
   
   
   **Versions (各种版本)**
   OS: centos 5.7
   Compiler: CC=/usr/local/gcc-4.9.2/bin/gcc CXXFLAGS='-gdwarf-2'
   brpc: 3becc72864e748774f13e4347f98b30585664ea4
   protobuf:2.4.1
   
   **Additional context/screenshots (更多上下文/截图)**
   Thread 10 (Thread 0x7fe2009ff700 (LWP 17081)):
   #0 0x00007fe28a98d51d in __lll_lock_wait () from /lib64/libpthread.so.0
   #1 0x00007fe28a988e51 in _L_lock_1022 () from /lib64/libpthread.so.0
   #2 0x00007fe28a988df2 in pthread_mutex_lock () from /lib64/libpthread.so.0
   #3 0x0000000000ac982b in pthread_mutex_lock ()
   #4 0x000000000050d860 in je_arena_choose_hard ()
   #5 0x0000000000544028 in je_tcache_get_hard ()
   #6 0x000000000051165b in malloc ()
   #7 0x00000000011e97ec in operator new(unsigned long, std::nothrow_t const&) ()
   #8 0x0000000000aca071 in bthread::submit_contention(bthread_contention_site_t const&, long) ()
   #9 0x0000000000ac9bb7 in pthread_mutex_unlock ()
   #10 0x0000000000522750 in je_base_alloc ()
   #11 0x0000000000516f4f in je_arena_new ()
   #12 0x000000000050d7ab in arena_init_locked ()
   #13 0x000000000050d94d in je_arena_choose_hard ()
   #14 0x0000000000544028 in je_tcache_get_hard ()
   #15 0x000000000051165b in malloc ()
   #16 0x00000000011f4cd8 in operator new(unsigned long) ()
   #17 0x0000000000693e5e in std::function ()>::function, std::__future_base::_Result_base::_Deleter>, rocksdb::Status>, void>(std::__future_base::_Task_setter, std::__future_base::_Result_base::_Deleter>, rocksdb::Status>) ()
   

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