[LLVMbugs] [Bug 14563] New: de-flake gdb.base/info-os.exp

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14563

             Bug #: 14563
           Summary: de-flake gdb.base/info-os.exp
           Product: clang
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Keywords: googler
          Severity: enhancement
          Priority: P
         Component: C++
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: dblaikie at gmail.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
            Blocks: 14395
    Classification: Unclassified


This test regularly flakes out with failures while calling semget(2). The
system reaches internal semaphore resource limits (as seen in log files since I
added extra logging in r169748:

A lot of this:
Trying to create a semaphore: File exists

Followed by a lot of this:
Trying to create a semaphore: No space left on device

I don't know whether this is due to a resource leak (I couldn't find anything
about how to destroy semaphores created with semget so maybe we're just making
too many & they're not being destroyed/reclaimed) or that the test suite should
expect to reach limits higher than the current system settings (in which case
we may need to increase the system limits).

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