On Thu, Jan 21, 2021 at 11:25:30AM +0100, Roberto Ragusa wrote: > On 1/21/21 12:29 AM, Patrick マルタインアンドレアス Uiterwijk wrote: > > On installation of two different VMs, one with the resigned RPMs, and one > > with the resigned+ima RPMs, the /usr directory size does not change at all > > (both are exactly 1417064 bytes). > > How is this physically possible? (and one million bytes for a directory > makes no sense, I wonder what measurement this is) > The signatures are stored in file extended attributes. Some file systems inline short extended attributes into i-node data structure. It could happen then the signature was placed into alignment gaps of the inode table resulting into no increase of the occupied blocks.
But a simpler explanation could be that the used file system forgets to count extended attributes into stat.st_blocks value. We really need to know the details. -- Petr
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