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Re: serialize_io and 2.6.16 and Prolific chipset: msg#00008

Subject: Re: serialize_io and 2.6.16 and Prolific chipset
Daniel Smolik wrote:
> I have external enclosure with disk (Prolific chipset) I must upgrade 
> firmware to get it working with 2.6.x kernels. And with serialize_io=1 
> I get ~35Mb/s writing speed. With serialize_io=0 ~ 45Mb/s but disk 
> after copying 500MB freeze I must unplug it. Why disk freeze ? Chipset 
> doesn't support some feature ? Or hardware is buggy ?

If problems remain with the newest firmware, they are likely caused by a 
sbp2 driver bug. (Perhaps I get it fixed during the summer...)

By 'freeze' do you mean the copying process stops? Or does the entire 
system freeze? And do you mean by Mb/s MByte/s or Mbit/s?
-- 
Stefan Richter
-=====-=-==- -=== --==-
http://arcgraph.de/sr/

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