On Fri, 27 Aug 2004, Alex Villac��s Lasso wrote: > I checked the thread. As far as I can see, the problem described is > about the ethernet device causing spurious interrupts in the USB IRQ. > However, > there are two things that are not explained from reading the thread: > > * How can an Ethernet card in my home machine, without any cable > connected to it, make the system generate a spurious interrupt at IRQ 5, > at the exact moment in which the memory stick is plugged?
It doesn't have to be the Ethernet card; it could be any device. But you're right that it's unlikely this would happen just when you plug in the stick. Another possibility is that the UHCI controller _is_ generating the interrupt but is failing to set the apropriate status bits to indicate that it is indeed the source. This seems pretty unlikely too. > * Why is the problem temporarily fixed when I rmmod ehci-hcd? Beats me. Maybe the EHCI controller is the other device responsible for creating the spurious interrupts? Of course, that's what you originally guessed -- so perhaps you were right. Your experiments with ACPI turned off should be informative. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
