Have you tried mounting the device with -o sync ? Matt
On Sat, Jul 19, 2003 at 01:25:12AM +0200, kri wrote:
> ooops - sent to wrong adress first, here we go:
>
> > Your problem sounds very similar to one that came up not too long ago.
> > In that case it turned out that the USB-IDE interface was unable to
> > handle data flows that were too fast. As more and more data was
> > transferred, the interface would just crash and require time-consuming
> > error recovery. The transfers just slowed down to a crawl, while
> > unwritten buffers filled up the memory.
>
> Thanks for the information :)
> That indeed is not totally unlikely. After a new test I did today, I
> noticed that my kernel does indeed not totally crash, but this happens:
> The transfer indeed slows down very much, and at some point (with about 2
> MB of Ram left ;) ) it stopped. My drive signaled no more activity. I
> could still switch consoles on my linux, but none of them would accept
> keyboard input. MagicSysRq Key still worked.
> I will compile a 2.6.0-test kernel and try for the rsync and bandwidth
> limiting, just to see if that is the problem.
> Thanks for the hint.
>
> Indeed, I just did that(compile and try with rsync), but this does not
> really seem to help. It (rsync bandwith throtteling) just slows down the
> process, making buffers in memory increase slower. I can see when commands
> are sent to the device (which are not a continuing stream, but more like a
> series of commands, pausing in between due to the bandwidth limiting.
> Maybe I need to lower it a lot more - I tried with rsync and between 50 kb
> and 20 kb), seeing it work in turn with those bursts and pausing in
> between.
> When the transfer begins, for a time nothing happens. I suspect the
> buffers of the USB to IDE connector, or of the HDD itself first fill - and
> then the commands are sent to the device. :(
> Is there anything I could do about it? (heh - maybe I have to learn to
> write my own driver... or just sell this stupid thing :( )
>
> --
> Today is Setting Orange, the 54th day of Confusion in the YOLD 3169
--
Matthew Dharm Home: [EMAIL PROTECTED]
Maintainer, Linux USB Mass Storage Driver
I'm a pink gumdrop! How can anything be worse?!!
-- Erwin
User Friendly, 10/4/1998
pgp00000.pgp
Description: PGP signature
