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    SubjectRe: [PATCH 26/30] ext4: do not send discards as barriers
    Jan Kara <> writes:

    > An update: I've set up an ext4 barrier testing in KVM - run fsstress,
    > kill KVM at some random moment and check that the filesystem is consistent
    > (kvm is run in cache=writeback mode to simulate disk cache). About 70 runs

    But doesn't your "disk cache" survive the "power cycle" of your guest?
    It's tough to tell exactly what you're testing with so few details;
    care to elaborate?


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