Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753912Ab0KYQOi (ORCPT ); Thu, 25 Nov 2010 11:14:38 -0500 Received: from mail-bw0-f46.google.com ([209.85.214.46]:50482 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753375Ab0KYQOg (ORCPT ); Thu, 25 Nov 2010 11:14:36 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=TaCdZ+/yeN1rEnAjL584zonmNl0OuYCskSIUiSe9WD9DBDNDMbXZLbXD3YRwQqkvK3 /lDooYOcrgaOaiUQLjF0+bTaCL+gFKQriF9hR5HLi6UD9xdmx2KRXDeP8ansKaOIDy7p 02HiYLSYP9Fvob1wSfN+vR/C3g/MXhT4S11qk= Message-ID: <4CEE8B67.2050701@gmail.com> Date: Thu, 25 Nov 2010 21:14:31 +0500 From: "Alexander E. Patrakov" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101029 Lightning/1.0b3pre Thunderbird/3.1.6 MIME-Version: 1.0 To: Alan Stern CC: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: Nobody cared about IRQs at shutdown References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1415 Lines: 38 25.11.2010 21:06, Alan Stern wrote: > On Thu, 25 Nov 2010, Alexander E. Patrakov wrote: > >> Hello. >> >> After switching my Gentoo desktop from sysvinit + openrc to systemd, I >> started getting "nobody cared" messages about IRQs 16 and 19 (common >> thing: they are assigned to the USB controllers, that's why CC: > According to your listing, they are used by uhci-hcd. Do the messages > go away if you unload uhci-hcd before shutting down? It is not a module here, so I have to recompile the kernel in order to try this. Will do that tomorrow. > You may need to debug the uhci-hcd driver. Look into > drivers/usb/host/uhci-hcd.c; the uhci_shutdown() routine ought to be > called and it ought to call uhci_hc_died(), which in turn calls > uhci_reset_hc() in pci-quirks.c, which is supposed to prevent the > controller from generating any IRQs. OK, tomorrow I will add some printks there. > Do you have any USB devices attached to bus 3 or bus 6? Yes: Bus 006 Device 002: ID 05d8:4002 Ultima Electronics Corp. Artec Ultima 2000 (GT6801 based)/Lifetec LT9385/ScanMagic 1200 UB Plus Scanner Should I unplug it and retest the bug now? -- Alexander E. Patrakov -- 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/