Hi,
I am using slackware 10.2, with the ubuntu 2.6.15.6 kernel on a FS Amilo A1650 laptop.
I have a kingston 512mb pen drive (usb 2).
When I plug it in the usb port, it gets mounted automatically, I can read and write to it.
But there is something strange. When i write some large amount of data (an mp3 album for example), the gnome nautilus progress bar goes to 100% quite quickly and then the IOWait on the system monitor is at 100%.
This means that it still writes.

Why does this happen? Can anyone explain this to me?

Thanks in advance!

Does the data keep transferring to the device at this point, or does it just stop?

it keeps transfering although the progressbar has completed (100%).
The same happens if I copy files using the command line. cp returns but files are still being tranfered to the pen drive.
The same happens with my flash mp3 player and my digital photo camera...

In that case then, it's not a software issue (I don't think), but I don't know what. If it is at all related to software, then perhaps your host controller driver is buggy. I don't know anything about this stuff.

Try this: http://www.linux-usb.org/

Ok thanks!
I'll have a look at it!

Is there any sort of write cacheing enabled? Depending on the filesystem, it might have finished copying virtually but still be copying physically.