I took my N900 with me to my skying holiday as an "offload device" for my photos, when the card of my camera would fill up.

This is the first time where I really "stressed out" USB host-mode.

The first day, I had around 100 Megs of photos to transfer (using gphoto), and midway through the transfer, the phone suddenly became very slow, until the transfer broke up. I rebooted, and continued (with a USB card reader that I had with me, fortunately).

Eventually, the same thing happened (slower, and slower transfer). Eventually, the light on the card reader went off, just as if VBUS power had been cut (but this was not the case).

After quitting and relaunching h-e-n, and removing zero-sized files, I could finish the copy.

The other days, I already started with the card reader, but same thing kept happening, as long as there was a big enough amount of photos.

It looks as if there might be some resource (memory buffer?) starvation issue. Any ideas?

Thanks,

Alain