> Many people, including myself, have observed system stalls when using
> usb-storage.  It happens when copying large amounts of data to a USB
> device-- everything (except the USB access) just stops for a little
> while.  My best guess is that the block cache is filling up (easy since

Confirmed.
Maybe some information on how things went here:
I had complete hangs with USB-Storage, until 2.4.22-pre7 - but I do not
think this is kernelversion related. Turning off ALL debug and "enable
extra checks in new queuing code" finally seemed to help. Maybe this gives
a clue as to where the problem is. I still experience system stalls, but
no complete locks anymore.

-- 
Today is Setting Orange, the 59th day of Confusion in the YOLD 3169

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