On Thu, 21 Jul 2005, Artur Szymiec wrote: > Dear Alan, > > I just tried complex testing including: > 1) Use another PC (Dell Laptop) with some linux distro - I used Knoppix live > CD > 2) Use 2.6.13 kernel with and without your patches > 3) Use the ub module > 4) test new USB 2.0 usb device - 512 M Kingston on my PC > 5) test my system with Knoppix live distro > > Ad 1) This test succeeded - the device works fine - however: > a) the Knoppix (latest version) uses the UB driver (I don't know why - even > after unloading > the ub he's loading it back instead of using usb-storage) > b) The transfer speed is only between 100 KB - 180 KB /sec (average 150) > while Win can make almost 600 (estimated) > on the same hardware > > Ad 2) This trial failed. Results are NG. The device is recogonized and it's > possible to mount / dir and even > start a copy - but hangs very soon after. Please see attached logs > (all are from 2.6.13-rc3 with 2 suggested patches). > I tried to remove ehci and use only ohci - no different > > Ad 3) The UB module with 2.6.13-rc3 kernel test fails - the phenomena is > almost same - start copying but very soon hangs. > > Ad 4) This test was to check my mainboard - the 512 mem stick works perfect - > very high transfer rates - no problems at all. > > Ad 5) Fail even with knoppix UB storage on my system. > > This test leads me to conclusion (correct me if I'm wrong) > > a) the cables of this mp3 players are ok (works on Win and Linux on the Dell > PC) > b) my motherboard is ok - no problem with 5 different devices (Kingston 512 > MB, Rhomba mp3 player, HP camera, Speed Touch USB > ADSL, Motorola phones etc.etc. ) > c) the device itself seems to be somehow tricky - don't know at which level > but seems that at the slow > transfer speeds everything is ok (UB driver on Knoppix, write to device > in my system fails low frequently with a transfer about 200 k/sec) > > I hope this is not the end .... or maybe from log this is filesystem issues > (I tried reformat on linux - reformat is ok but the behavior is same) > > So what now ? > Hope You'll not give up :-) > > Best Regards > Artur > > > PS. The Dell USB ports are all 1.1 my all are USB 2.0 - maybe this will give > You some clues ? > (My BIOS MB is the latest one from ASUS)
These are good tests, even if they don't answer the most important question. I won't have time to look at your data until next week because I'm away at a conference now. Alan Stern ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
