On Monday 25 June 2012 00:22:54 maxim naumov wrote:
> On Sun, Jun 24, 2012 at 2:33 PM, Hans Petter Selasky <hsela...@c2i.net> 
> > Ok, then it is not a USB host problem.
> I am not sure I follow. to me that just proves that the HDD doesn't
> have an irrecoverable error on a particular sector. by irrecoverable I
> mean an error that would stop the HDD working altogether until power
> cycle rather than report a sector read/write error.
> the question what screws up the HDD remains. the HDD can get screwed
> up by itself due to a bug in firmware, but why doesn't it happen with
> windoze or GNU/Linux? pure luck?


You should compare things like CPU usage and number of interrupts during data 
transfer, before we could say anything for sure.

BTW: Maximum block size for USB 2.0 under FreeBSD is 64Kbytes.

BTW: You could try to make a simple c-test program that reads and writes 
random LBA's from user-space, and see when it stops working.

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