On 05/02/18 06:22, Eitan Adler wrote:
On 1 May 2018 at 20:53, Eitan Adler <li...@eitanadler.com> wrote:
Hi all,
I am noticing consistently high IRQ rates on xhci0
example from vmstat -i right now:
irq259: xhci0 2222153 1876
and this is not the highest I've seen.
My understanding is that a rate of 1876/s is insane for USB devices.
Any suggestions of what I can do to debug?
Things I've tried:
- disabling MSI interrupts
- disabling MSI-X interrupts
- powering off all usb devices using usbconfig
- unplugging all USB devices
One thing of note:
My mobo has a broken USB connector resulting in one of the two front
USB-3 ports not working. I'm guessing this is related but I'd like
some confirmation and/or a way to bypass the issue in software.
with insane debugging enabled:
Try to see with usbdump if any traffic is passing on xhci0.
--HPS
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