On Tue, 23 Nov 2004 [EMAIL PROTECTED] wrote: > Hi everybody, > I have recently bought a VIA PCI USB2.0 card with a VT6202 chipset. The > problem is that when I plug in an external HDD or flashdisk drive the > system performance drops, with horrifying response time and disk transfer > rates. I've noticed with top that the cpu runs sys mode during more than > half the time!. > The problem still remains when devices are unplugged, but when ehci_hcd > module is removed, the system recovers. > There are also other problems regarding the external HDD: when shuting > down umount command gives a kernel error at the moment of unmounting local > file systems (umount_error.txt attachment), removing the ehci_hcd module > with all partitions unmounted gives some ReiserFS errors (I don't think > these are relevant). > With ehci module removed I can plug in devices and make use of them with > the uhci_hcd driver. All ehci_hcd, uhci_hcd and ohci_hcd (because of the > USB1.1 onboard ports) are loaded at boot time but I believe it is not a > problem at all. > I use a self-compiled 2.6.8 kernel and a Debian-Sarge distro, but I've > realized the same problem with 2.4.27 and 2.6.9 versions. > My motherboard is an Iwill XA100 Plus v1.1 (Ali M1541 chipset) and the > output of lspci can be seen in the lspci.txt attachment. > Thanks for reading and hope that someone may help, > Juan
Some of the problems you saw may be fixed in 2.6.10-rc2. As for the rest, the VT6202 is known to be flakey in several respects. For more information, you should try contacting the maintainer of the ehci_hcd driver. Alan Stern ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
