On Thu, 28 Jul 2005, Vedran Rodic wrote: > Hello > > I'm using the latest available kernel.org version 2.6.13-git9, on a > nforce2 IGP chipset. > > There is a Flash card reader attached. > > As soon as I've booted the kernel, I got some kernel messages about USB > errors. > > In kernel 2.6.10-ac12 I can at least without errors, and sometimes the > reader device works normally, usually just after the reboot. Then I can > insert a couple of flash cards, but at some point that stops working > also, and I can't even insert a separate USB flash reader. > > What is strange is that every time the usb fails /proc/interrupts says > that the interrupt count is 100000. On any kernel I've tried. See the > attached interrupts.out. > > I'll try with various kernel options tomorrow (noacpi, irqpoll, noapic > etc) and report back with results.
An interrupt count of 100000 is what you get when some device is issuing interrupt requests on that IRQ line and the kernel doesn't realize it. Apparently one of your devices other than the EHCI controller is using IRQ 18. Sometimes upgrading the computer's BIOS will fix such problems. Alan Stern ------------------------------------------------------- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
