KDE "safely remove" is not safe in the sense that some data is lost, specially in the case one has just copied a large (say, 100 Mb) file to the pen drive. According to Markku Kolkka, «the problem I have seen is that the device icon on the KDE desktop changes immediately after "safely remove" to indicate that the device is unmounted and ready to be removed, but the system is actually still in the process of writing data to the device. If the device is removed too early, some files will be missing or the filesystem may be corrupted and there's no way to know when it's actually safe to remove it.»
This bug may be related to "199128: USB drive icon disappears before write cache flushed".
Ah ha, looks very similar indeed, so far we have fc4: bug #199128: "USB drive icon disappears before write cache" fc5: bug #194296 "USB drive icon shows as unmounted before write cache flushed"
Does the problem still persist in F8?
*** Bug 218775 has been marked as a duplicate of this bug. ***
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I cannot test it anymore, as now I do not use KDE. Paul
Thanks, we'll just have to keep an eye out for this.