UBIFS recovery truncates file to zero size
iram.shahzad at jp.fujitsu.com
Thu Mar 12 04:49:08 EDT 2009
>> For the write back enabled case, I was expecting the
>> following behaviour:
>> power went down before the file is sync-ed, so
>> on the next booting the file will be in its old state,
>> that is it will contain the contents which it had before
>> this write.
>> But instead of being in the old state, it becomes empty file.
>> Is this really expected(correct) behaviour?
> No. How were you updating the file?
The file is updated by a Java application in the following way.
FileOutputStream str = new FileOutputStream(aFilename);
// some write here
I switch off the power after confirming that the str.close() has been
If I add str.getFD().sync(); after the str.flush(), the file looks good in
the next boot. However my question still remains for the case
when I do not call str.getFD().sync:
"why the file becomes empty rather than being in its old state?".
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