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Date: Mon, 14 Nov 2005 17:14:06 -0800 From: Michael Madore <[EMAIL PROTECTED]> To: linux-kernel@vger.kernel.org Subject: USB handoff, irq 193: nobody cared! Hi, I'm getting the following errors in my kernel log with 2.6.14: Nov 14 09:27:06 asl95 kernel: ACPI: PCI Interrupt 0000:00:03.2[A] -> GSI 10 (level, low) -> IRQ 193 Nov 14 09:27:06 asl95 kernel: ehci_hcd 0000:00:03.2: EHCI Host Controller Nov 14 09:27:06 asl95 kernel: ehci_hcd 0000:00:03.2: new USB bus registered, assigned bus number 1 Nov 14 09:27:06 asl95 kernel: ehci_hcd 0000:00:03.2: irq 193, io mem 0xfebfd000 Nov 14 09:27:06 asl95 kernel: ehci_hcd 0000:00:03.2: USB 2.0 initialized, EHCI 1.00, driver 10 Dec 2004 Nov 14 09:27:07 asl95 kernel: hub 1-0:1.0: USB hub found Nov 14 09:27:07 asl95 kernel: hub 1-0:1.0: 4 ports detected Nov 14 09:27:07 asl95 kernel: hub 1-0:1.0: over-current change on port 1 Nov 14 09:27:07 asl95 kernel: ACPI: PCI Interrupt 0000:00:03.0[A] -> GSI 10 (level, low) -> IRQ 193 Nov 14 09:27:07 asl95 kernel: ohci_hcd 0000:00:03.0: OHCI Host Controller Nov 14 09:27:07 asl95 kernel: ohci_hcd 0000:00:03.0: new USB bus registered, assigned bus number 2 Nov 14 09:27:07 asl95 kernel: ohci_hcd 0000:00:03.0: irq 193, io mem 0xfebfb000 Nov 14 09:27:07 asl95 kernel: hub 2-0:1.0: USB hub found Nov 14 09:27:07 asl95 kernel: hub 2-0:1.0: 2 ports detected Nov 14 09:27:07 asl95 kernel: ACPI: PCI Interrupt 0000:00:03.1[A] -> GSI 10 (level, low) -> IRQ 193 Nov 14 09:27:08 asl95 kernel: ohci_hcd 0000:00:03.1: OHCI Host Controller Nov 14 09:27:08 asl95 kernel: irq 193: nobody cared! I don't see this behavior under kernel 2.6.12. Running git-bisect, I narrowed it down to this change: d49d431744007cec0ee1a3ade96f9e0f100c7907 is first bad commit diff-tree d49d431744007cec0ee1a3ade96f9e0f100c7907 (from 9198769363d4dc1d63d49ec b2e2b189aceb42d94) Author: David Brownell <[EMAIL PROTECTED]> Date: Sat May 7 13:21:50 2005 -0700 [PATCH] USB: misc ehci updates Various minor EHCI updates * Dump some more info in the debug dumps, notably the product description (e.g. chip vendor), BIOS handhake flags, and debug port status (when it's not managed by the HCD). * Minor updates to the BIOS handoff code: always flag the HCD as owned by Linux (in case BIOS doesn't grab it "early"), and on the buggy-BIOS path always match the "early handoff" code and forcibly disable SMI IRQs. * For the disabled 64bit DMA support, there's now a constant to use for the mask; use it. Signed-off-by: David Brownell <[EMAIL PROTECTED]> Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]> :040000 040000 e883b4103743cfeb337c5b914affcdcb51adc23f c55d891960ce2b85c70a9b43 2730c3a4aa70261c M drivers Reverting this patch restores the original behavior. Also, I only see this error if USB legacy support is _disabled_ in the BIOS. If I enable legacy support, then the error goes away. Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today Register for a JBoss Training Course. Free Certification Exam for All Training Attendees Through End of 2005. For more info visit: http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel