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    SubjectRe: serious 2.6 bug in USB subsystem?
    On Mon, Oct 27, 2003 at 02:35:09PM -0800, David Mosberger wrote:
    > One-line summary: plug-in your USB keyboard, see your machine die.

    Any chance to know where the machine dies? Any oops you can help us out
    with?

    > So, I have this non-name USB keyboard (with built-in 2-port USB hub)
    > which reliably crashes 2.6.0-test{8,9} on both x86 and ia64. In
    > retrospect, it's clear to me that the same keyboard also occasionally
    > crashes 2.4 kernels, but there the problem appears more seldom.
    > Perhaps once in 10 reboots and once the machine is booted and the
    > keyboard is running, it keeps on working. The keyboard in question is
    > a BTC 5141H.

    If you do not load the HID driver, and disable automatic loading of the
    hid driver (echo '/sbin/true' > /proc/sys/kernel/hotplug) and plug in
    the device, does it still crash?

    If not, can you get us the output of /proc/bus/usb/devices and lsusb
    with the device plugged in?

    If not, does then loading the hid driver cause the problem?

    thanks,

    greg k-h
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