Messages in this thread | | | Subject | RE: Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble | Date | Sun, 10 Jul 2005 13:50:50 -0500 | From | "Protasevich, Natalie" <> |
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> -----Original Message----- > From: linux-kernel-owner@vger.kernel.org > [mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of > Michel Bouissou > Sent: Sunday, July 10, 2005 2:11 AM > To: linux-kernel@vger.kernel.org > Cc: stern@rowland.harvard.edu; mingo@redhat.com > Subject: Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble > > Hi there, > > I use a Gigabyte GA7-VAXP motherboard that has been fine for > more than 2 years with 2.4 series kernels, and that gives > trouble with 2.6.12 (and previous) kernels. > > The problem seems to sit between the UP IO-APIC and USB > uhci_hcd driver. > > The GA7-VAXP MB is equipped with an Athlon 2000+ XP and a VIA > KT400 chipset. > > Using 2.4 series kernel the IO-APIC is used just fine. Was > never source of any kind of problem. > > Using 2.6.12 kernel, if the IO-APIC is enabled in the kernel > configuration, then the interrupt controlling the uhci_hcd > USB controller gets disabled as soon as uhci_hcd is initialized.
Michel, Symptoms that you describe resemble several IRQ problems with VIA chipset reported by others (but not quite...) Could you check on bugzilla #4843 please http://bugzilla.kernel.org/show_bug.cgi?id=4843 and see if the patch fixes your problem. Thanks, --Natalie
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