Nate Lawson wrote: > On Sat, 13 Sep 2003, John-Mark Gurney wrote: > >>Andrew Thompson wrote this message on Sat, Sep 13, 2003 at 16:33 +1200: >> >>>I have just got around to trying this pen-drive again and have been >>>trying tracking down data corruptions. If I mount the drive, write a >>>file, umount/mount again the file is different. >>> >>Is this on an ohci controller? >> Yes, on a Compaq N1000v laptop (nothing but trouble) usb0: OHCI version 1.0, legacy support usb0: <NEC uPD 9210 USB controller> on ohci0 usb0: USB revision 1.0 >> >>This is wierd in that it's the second page of the second transfer. >>The ohci can do up to 8k transfers in one TD, and then chain the TD's >>together if a larger block sized is used. > > Maybe you can provide him a patch that limits transfers to a single page > as multi-page descriptors might be broken on his controller. > I have now tried the unit on my desktop at home and it works perfect, no corruptions. It seems to be related to my laptop usb controller as Nate suggests. AndyReceived on Sat Sep 13 2003 - 20:13:38 UTC
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