Ubuntu
linux-source-2.6.20 package

  1. Bug #89746
  2. Comment #32

Comment 32 for bug 89746

Revision history for this message
Robert W. Brewer (rwb123) wrote :

Any suggestions on how to debug this problem?

I have tried using powertop to see the interrupt usage. With no USB devices plugged in, my machine shows about 450 ehci_hcd interrupts per second. When I unload the ehci_hcd module these interrupts stop. This is all with boot parameters "noapic noirqdebug". My machine still won't boot without those parameters.