[LLVMbugs] [Bug 4486] New: llvm-ld: Assertion `writers == 0 && " Writer lock already acquired!"'

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=4486

           Summary: llvm-ld: Assertion `writers == 0 && "Writer lock already
                    acquired!"'
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Core LLVM classes
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: haohui.mai at gmail.com
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=3142)
 --> (http://llvm.org/bugs/attachment.cgi?id=3142)
test case

It seems that llvm-ld has acquire a lock twice.

llvm-ld mm/page_alloc.bc mm/page-writeback.bc -o a
llvm-ld: /home/mai4/work/src/llvm/include/llvm/System/RWMutex.h:119: bool
llvm::sys::SmartRWMutex<mt_only>::writer_acquire() [with bool mt_only = true]:
Assertion `writers == 0 && "Writer lock already acquired!"' failed.
0   llvm-ld 0x083694c8
Stack dump:
0.      Program arguments: llvm-ld mm/page_alloc.bc mm/page-writeback.bc -o a 
Aborted


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