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Subject: Re: problems copying over many files

Re: problems copying over many files

From: Matthew White <>
Date: Sat, 29 Mar 2003 03:10:48 -0800

upgrading the kernel to a kernel with USB2.0 support (2.4.19) has solved
this problem.

Thanks Gerald!


On Fri, Mar 28, 2003 at 07:30:22PM -0600, Gerald Clark ( wrote:
> Are you running Linux and USB1 ?
> I suspect it starts out fast as it fills
> Many megs of buffers. When it runs out of buffers, it starts writing them.
> This is the long pause.
> I recommend getting a USB 2.0 card.
> ------------
> I've recently purchased an Archos Jukebox 20 recorder. I'm able to mount
> the hard disk and copy/delete files etc. The problem I'm running into is
> that when I copy a lot of files, the cp process hangs for a few minutes,
> then begins again very slowly.
> While this is happening, I can see (from top) that bdflush and
> usb-storage-0 seem to waiting for someting. Their "STAT" is "DW".
> When I see bdflush and usb-storage-0 drop from the top of the process
> list, the file copies begin again at their normal pace.
> Mounting the filesystem in synchronus mode takes care of this problem
> but the copy process is quite a bit slower. I'm happy to provide any
> system details folks might deem relevant.
> thanks for your time,
> -mtw
> --

Received on 2003-03-29

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