[LLVMbugs] [Bug 17116] New: StackTrace::SlowUnwindStack dead locked

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=17116

            Bug ID: 17116
           Summary: StackTrace::SlowUnwindStack dead locked
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: manjian2006 at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

when asan try the get the stack trace from malloc,StackTrace::SlowUnwindStack
invoking _Unwind_Backtrace,which is also trying to invoke malloc.And because
the previous _Unwind_Backtrace holds  a lock ,the program is dead locked.
ASAN_OPTIONS=fast_unwind_on_malloc=0

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