Date: Fri, 15 Apr 2005 02:17:36 -0400 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-acpi@FreeBSD.org, jpeg@thilelli.net Cc: bug-followup@FreeBSD.org Subject: Re: usb/74989: (regression) Lost USB support between 5.2.1-RELEASE and 5.3-RELEASE on K7T266 Pro2. Message-ID: <200504150217.37985.jhb@FreeBSD.org> In-Reply-To: <49704.192.168.1.18.1113475314.squirrel@webmail.thilelli.net> References: <49704.192.168.1.18.1113475314.squirrel@webmail.thilelli.net>
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On Thursday 14 April 2005 06:41 am, Julien Gabel wrote: > Hello, > > I made some progress here. After playing with BIOS settings, i am now > able to: > - Boot with ACPI enable (shutdown -p works as expected now); > - Use USB devices. > > In order to do that, i had to totally disable "APIC Function" in the > BIOS. With "APIC Function" enabled, neither version 1.4 nor 1.1 of the > "MPS Table Version" settings solved my problem. > > So, although i meed to disable "APIC Function", all seems to works > correctly together: ACPI support and USB support. As a side note, i > did not encountered anymore the interrupt storm on the uhci USB host > controller driver. > > Maybe can someone explain me what may be wrong with "APIC Function", > and if there is some drawbacks to disable it (or what is the purpose > of this setting)? APIC is used to route interrupts differently. You can also disable it from the loader with 'hint.apic.0.disabled=1'. I've looked at your dmesg's, and the problem is that in the ACPI case the IRQ 10 that your USB controllers are using is configured as an ISA IRQ (edge/high). For now you can either disable APIC or ACPI as a workaround until I figure out a better solution. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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