Your bug report

#51345: dd with conv=fsync sometimes returns when its writes are still cached

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 51345@debbugs.gnu.org.

-- 
51345: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=51345
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