> Dnia czwartek, 21 lipca 2005 13:59, Alan Stern napisał: > 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 > > Dear Alan,
I have made additional test on this Dell Laptop - I used the Madkrake Move live CD. After plug in the player was recognized and system used the usb-storage driver. During the copy from player with the same speed as Win 500-600 kb/s it hangs up somewhere in the middle of copy almost every time - same like on my system (or maybe a little better - this is just feeling) Did You look at the logs which I send last time ? Regards Artur ------------------------------------------------------- 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_idt77&alloc_id492&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
