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Linux may cache a stale copy of block device #58

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KimEbert42 opened this issue Aug 13, 2018 · 0 comments
Open

Linux may cache a stale copy of block device #58

KimEbert42 opened this issue Aug 13, 2018 · 0 comments

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@KimEbert42
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Linux may cache a stale copy of the block device. To work around the issue, you could use O_DIRECT or flush the buffers for the lvm blockdev --flushbufs /dev/mapper/snapshot_cow before reading the values to ensure getting a more up to date value.
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