Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753870Ab3CFQSY (ORCPT ); Wed, 6 Mar 2013 11:18:24 -0500 Received: from mail-oa0-f44.google.com ([209.85.219.44]:35627 "EHLO mail-oa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752927Ab3CFQSW (ORCPT ); Wed, 6 Mar 2013 11:18:22 -0500 MIME-Version: 1.0 In-Reply-To: <1362585587.2140.8.camel@localhost> References: <1362585587.2140.8.camel@localhost> Date: Wed, 6 Mar 2013 11:18:21 -0500 Message-ID: Subject: Re: [REGRESSION] 3.9-rc1 kernel usb root hub stops working and cannot reboot From: Josh Boyer To: Eric Paris Cc: Linux Kernel Mailing List Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1617 Lines: 32 On Wed, Mar 6, 2013 at 10:59 AM, Eric Paris wrote: > I've got a Lenovo T530. Booting a 3.8 based Fedora kernel my machine > works just fine. Booting a 3.9-rc1 based Fedora kernel my USB 2.0 root > hub doesn't seem to notice when devices are plugged in. (The USB 3.0 > root hub has no such problem) I'm assuming (maybe stupidly) it is > associated with: > > Mar 06 09:52:35 localhost kernel: pci 0000:00:1c.0: can't find IRQ for PCI INT A; please try using pci=biosirq > Mar 06 09:52:35 localhost kernel: pci 0000:00:1c.1: can't find IRQ for PCI INT B; please try using pci=biosirq > Mar 06 09:52:35 localhost kernel: pci 0000:00:1c.2: can't find IRQ for PCI INT C; please try using pci=biosirq > > (also, funny thing, pci=biosirq is not a valid command line option, glad > it told me to try that) > > I also notice that the 3.9 kernels cannot reboot. The kernel output the > machine restart message and then just hangs forever. Again, this works > just fine on the 3.8 kernels. You're booting via EFI, right? I'm debugging an identical issue on an EFI machine here. Basically, it looks like the efi_info variable in the bootparams thing is cleared so EFI/ACPI is all broken. There's a suspect commit but I'm still bisecting so I won't be blaming anything yet. If you'd like to follow along in Fedora land, I'm working with bug 918408. josh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/