Why do I see an absurdly large size for a particular file?
Issue
On our gfs cluster, we find a file with incoherent file size. When running "ls -l", we get:
-rw-rw-r-- 1 hrprod hrprod 72057594037927935 Sep 24 15:34 PSWTFIRX.C
Which is obviously impossible as the gfs volume is 250GB and du says the file is 2G:
# du -sh PSWTFIRX.C
2.0G PSWTFIRX.C
This isn't a problem in itself except tar fails to archive the file as it thinks it's too large.
This may happen with other filesystems than gfs.
Environment
Red Hat Enterprise Linux (all versions, (nearly?) all filesystems)
sparse file
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