[Bug 51301] New: [-next-20121129] memory leak/page allocator fragmentation?

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https://bugzilla.kernel.org/show_bug.cgi?id=51301

           Summary: [-next-20121129] memory leak/page allocator
                    fragmentation?
           Product: Virtualization
           Version: unspecified
    Kernel Version: -next-20121129
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
        AssignedTo: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx
        ReportedBy: peter@xxxxxxxxxxxxxxxxxx
        Regression: No


With a single 2Gb/4-core VM on a 10Gb/8-core host, the _host_ ran out of 32kb
page blocks. I can't be certain that it was kvm because the OOM condition
triggered a GP fault in the SLUB allocator. (The other suspect is nouveau.)

I have attached the kernel log and a SysRq Show Memory dump of the machine
shortly after boot without running kvm.

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