[Bug 30640] Re: displayed progress not correct when copying files to an usb stick

Phillip Susi psusi at cfl.rr.com
Mon Nov 1 00:47:35 UTC 2010


** Changed in: nautilus (Ubuntu)
   Importance: Wishlist => Low

** Changed in: nautilus (Ubuntu)
       Status: New => Triaged

** Summary changed:

- displayed progress not correct when copying files to an usb stick
+ Displayed progress not correct due to kernel fs cache.  Need O_SYNC when copying files.

** Description changed:

  When copying files to an usb stick the progress is not displayed
  correctly. The progress bar shows that it is finished but when plugging
  the usb stick out and in the files are not on the usb stick. When
  waiting for some time after copying the files the files are really on
  the stick.
  
- This happens in Breezy and Dapper.
- 
- Please, change the package name if I selected the wrong package. Thanks!
+ This problem is especially acute for slow usb sticks, but the progress
+ bar is wrong in all cases since it is only reporting progress of the
+ kernel to accept the writes into its cache.  Nautilus should use O_SYNC
+ on the destination file so it will be informed of the progress properly.

-- 
Displayed progress not correct due to kernel fs cache.  Need O_SYNC when copying files.
https://bugs.launchpad.net/bugs/30640
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