Re: [linux-usb-devel] VIA and NEC EHCI

2003-01-18 Thread David Brownell
Jonathan Thorpe wrote: > Greetings, Thanks for the info ... the irq threshold experiment worked as I had expected, although I hadn't noticed "hdparm" gave such low numbers on 2.4 kernels. On 2.5 they can be more than four times bigger, in part because usb-storage there uses urb queueing. > Afte

Re: [linux-usb-devel] VIA and NEC EHCI

2003-01-18 Thread David Brownell
Jonathan Thorpe wrote: However, the BIOS on this board (an AMI BIOS, latest release from the motherboard vendor) has an option called "PCI Latency (PCI Clocks)" with a default setting of 32. I changed this to the maximum, which is 248 and the stability was far greater than before, on both NEC a

[linux-usb-devel] VIA and NEC EHCI

2003-01-18 Thread Jonathan Thorpe
Greetings, Recently, I've been testing an Asrock K7VT2 motherboard on Linux Kernel 2.4.21-pre2 with David Brownwell's EHCI patch dated 20th of December 2002. Since the application of the patch, there have been some improvements, but there are still many hangs. I've been in contact with David with