On Mon, 13 Mar 2006, Will Dyson wrote: > I've run into a problem with the high-speed usb hub integrated into > my Dell 1905 flatpanel when upgrading from 2.6.16-rc4 to 2.6.15-rc6. > > My system is debian unstable amd64. My motherboard is nforce3-based. I > am attatching the monitor's hub to one of the ports on the > motherboard. > > The symptom is that when I plug it in, I get console messages like the > following: > > usb 1-2: device descriptor read/64, error -110 > usb 1-2: device not accepting address 8, error -110 > > And the hub is not recognized. > > I'm attatching the dmesg (with usb debugging enabled) from both a > working boot and a non-working boot. > > I also performed a git bisect to search for the changeset that broke > it, but the result does not make much sense to me. The changeset > identified through the bisect touches only arch/i386, and I am running > an amd64 kernel. Furthermore, when I back said changeset out of > 2.6.16-rc6, the problem remains. The bisect log is pasted below. > > I'm puzzled here. Help?
This is an odd sort of error. Particular places to look at for changes are drivers/usb/host/ehci*.c and drivers/usb/host/pci-quirks.c. That's where changes could have a direct effect. There are loads of other places where changes could have an indirect effect. For example, changes in ACPI might cause incorrect IRQ vector assignments (compare /proc/interrupts in the two kernels). Or changes in the DMA code could mess things up. The git bisection question probably has to do with exactly which patches were applied during the bisection process. If you apply only the changesets leading up to the one identified and the test succeeds, and then you add that extra changeset and the test fails, then you know something has happened. Even if removing that particular changeset from 2.6.16-rc6 doesn't make any difference. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
