kern/74989: (regression) Lost USB support between 5.2.1-RELEASE and 5.3-RELEASE on K7T266 Pro2.

Julien Gabel jpeg at thilelli.net
Mon Feb 7 23:19:56 PST 2005


Just a side note, the desktop on which the problem (still) occurs follow
the RELENG_5 branch and the build used at this time is as follow:
  FreeBSD 5.3-STABLE #0: Fri Feb  4 05:38:57 CET 2005

But since mid/end-december 2004 (for ~2 months now _approximatively_) i
encountered systematically an interrupt storm from the USB host controller
which prevent me inevitably to be able to use all of ly USB devices:
  Interrupt storm detected on "irq10: uhci0 uhci1+"; throttling interrupt
source

In this context, if i reenable ACPI support on boot, i didn't see any
interrupt storm problem anymore... but i still can't use USB on this
system.

So, i now had an unusable USB system:
  - ACPI disable / uhci interrupt storm (doesn't even get the device
    created on the fly) => unusable USB devices
  - ACPI enable / "conflict" with USB stack (doesn't even get the device
    created on the fly) => unusable USB devices

Any advice?
-- 
-jpeg.

PS: Please CC me, since i am not a suscriber of freebsd-acpi@ nor
freebsd-usb at .



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