[LLVMbugs] [Bug 22164] New: PPC64/Linux: test/asan/TestCases/Posix/wait4.cc fails sometimes

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Jan 8 15:01:17 PST 2015


http://llvm.org/bugs/show_bug.cgi?id=22164

            Bug ID: 22164
           Summary: PPC64/Linux: test/asan/TestCases/Posix/wait4.cc fails
                    sometimes
           Product: compiler-rt
           Version: unspecified
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: hfinkel at anl.gov
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

test/asan/TestCases/Posix/wait4.cc has been failing on and off recently when
self-hosting trunk (Release+Asserts) on my PPC64/Linux POWER7 system running
REL 6.5.

error: expected string not found in input
 // CHECK: {{in .*wait}}


The actual output looks something like this:
==15206==ERROR: AddressSanitizer: stack-buffer-overflow on address
0x0fffcbe106fc at pc 0x00001003e398 bp 0x0fffcbe0fbf0 sp 0x0fffcbe0fc68
WRITE of size 4 at 0x0fffcbe106fc thread T0
    #0 0x1003e394 
(/home/hfinkel/build/ppc64/llvm-stage1/projects/compiler-rt/test/asan/64bitConfig/TestCases/Posix/Output/wait4.cc.tmp+0x1003e394)
    #1 0x100de6c8 
(/home/hfinkel/build/ppc64/llvm-stage1/projects/compiler-rt/test/asan/64bitConfig/TestCases/Posix/Output/wait4.cc.tmp+0x100de6c8)
    #2 0x80b782c084  (/lib64/libc.so.6+0x80b782c084)

Address 0x0fffcbe106fc is located in stack of thread T0 at offset 124 in frame
    #0 0x100de290 
(/home/hfinkel/build/ppc64/llvm-stage1/projects/compiler-rt/test/asan/64bitConfig/TestCases/Posix/Output/wait4.cc.tmp+0x100de290)

The problem seems to be that we're not getting the function names printed;
perhaps this is a problem with the debug information?

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