From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: Intel ICH9M bug : sata unusable with usbserial Date: Wed, 02 Mar 2011 08:34:50 -0500 Message-ID: <4D6E477A.9020401@teksavvy.com> References: <20110228140149.GA18189@frolo.macqel> <20110228150553.66d02bc7@lxorguk.ukuu.org.uk> <20110228151618.GA16322@htj.dyndns.org> <20110228170556.GA29545@frolo.macqel> <20110228173634.GA23008@htj.dyndns.org> <20110228192700.GA3305@kroah.com> <20110301123452.GA1954@frolo.macqel> <20110301141627.GB12881@kroah.com> <20110301150018.GA17827@frolo.macqel> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20110301150018.GA17827-NqYOdiUDesgPnqCj3zZnUQ@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Philippe De Muyter Cc: Greg KH , Tejun Heo , Alan Cox , linux-ide-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Greg Kroah-Hartman , linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-ide@vger.kernel.org On 11-03-01 10:00 AM, Philippe De Muyter wrote: > On Tue, Mar 01, 2011 at 09:16:27AM -0500, Greg KH wrote: >> On Tue, Mar 01, 2011 at 01:34:52PM +0100, Philippe De Muyter wrote: >>> previously we had all but one usb interrupts on the same line as ata_piix : >>> 5: 17183 XT-PIC-XT-PIC ata_piix, ata_piix, ehci_hcd:usb1, ehci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb5, uhci_hcd:usb6, uhci_hcd:usb7, uhci_hcd:usb8 >>> while now they are spread on different lines : 16, 18, 19, 21 and 22 >>> >>> So I wonder if there is still a bug, but that it is not triggered anymore. >>> >>> Is there a way to tell which interrupt line the USB GPS receiver is connected >>> to ? >> >> See which USB bus the device is on, using lsusb. It should match up >> with the usbX number in the above list. > > Given that I get : > > tmp199:~ # lsusb > ... > Bus 007 Device 002: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port > tmp199:~ # cat /proc/interrupts > CPU0 CPU1 > ... > 19: 996143 995511 IO-APIC-fasteoi ata_piix, ata_piix, uhci_hcd:usb5, uhci_hcd:usb7 > tmp199:~ # > > my USB GPS receiver and my sata disk still share the same interrupt, I assume ? > > What's changed now is that this interrupt line is now IO-APIC-fasteoi instead > of XT-PIC-XT-PIC. Maybe there's something to look at there ? > >> >> Glad enabling APIC in your BIOS fixed this. > > I am glad too :) Nothing got "fixed" by doing that. Swept under the rug, yes. But the bug is still there. Cheers -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html