From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161230AbWHDOgg (ORCPT ); Fri, 4 Aug 2006 10:36:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161235AbWHDOgg (ORCPT ); Fri, 4 Aug 2006 10:36:36 -0400 Received: from wr-out-0506.google.com ([64.233.184.235]:57461 "EHLO wr-out-0506.google.com") by vger.kernel.org with ESMTP id S1161224AbWHDOgf (ORCPT ); Fri, 4 Aug 2006 10:36:35 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=pBQPic5e0Hjd4j16RGDfhZk2iT76t1XtfeaDAymyGG0+e8FewZv7IhlEKIwu+xbT+srkB8wdptPfGDxNsz5kyBoiYkFt31qUYc1y1tFVTWg41pUqKvsTE4rjsm5lBsgp9IkJ8m4fCchG/LcX13x7a48PmDMKQQsNfGZOyBKpp7g= Message-ID: <9a8748490608040736n5c9ea078x79f4ce56b613703a@mail.gmail.com> Date: Fri, 4 Aug 2006 16:36:33 +0200 From: "Jesper Juhl" To: "Alan Stern" Subject: Re: Problem: irq 217: nobody cared + backtrace Cc: "Linux Kernel Mailing List" , linux-usb-devel@lists.sourceforge.net, "Greg Kroah-Hartman" In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <9a8748490608030717x1db108f1m2cc616459bb776db@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 03/08/06, Alan Stern wrote: > > Has this happened more than once? Seems to happen consistently after ~100000 interrupts. > In case it happens again, here's how > you can get more information. Turn on CONFIG_USB_DEBUG and > CONFIG_DEBUG_FS, and mount a debugfs filesystem somewhere (say > /sys/kernel/debug). Then after the problem occurs, save a copy of > > /sys/kernel/debug/uhci/0000:00:1d.1 > # cat /sys/kernel/debug/uhci/0000:00:1d.1 Root-hub state: auto-stopped FSBR: 0 HC status usbcmd = 0048 Maxp32 CF EGSM usbstat = 0020 HCHalted usbint = 0002 usbfrnum = (1)160 flbaseadd = 37428160 sof = 40 stat1 = 0080 stat2 = 0080 Most recent frame: 458 (88) Last ISO frame: 458 (88) > That will indicate whether the UHCI controller thinks it is sending an > interrupt request. > And just for completenes, here's the backtrace I got just before saving the above info : irq 217: nobody cared (try booting with the "irqpoll" option) [] show_trace_log_lvl+0x152/0x165 [] show_trace+0xf/0x13 [] dump_stack+0x15/0x19 [] __report_bad_irq+0x24/0x7f [] note_interrupt+0x6b/0xd5 [] __do_IRQ+0xf4/0x100 [] do_IRQ+0x95/0xbc [] common_interrupt+0x1a/0x20 [] handle_IRQ_event+0x20/0x56 [] __do_IRQ+0x98/0x100 [] do_IRQ+0x95/0xbc [] common_interrupt+0x1a/0x20 [] mwait_idle+0x30/0x35 [] cpu_idle+0x78/0x81 [] start_kernel+0x173/0x19d [] 0xc0100210 DWARF2 unwinder stuck at 0xc0100210 Leftover inexact backtrace: ======================= handlers: [] (usb_hcd_irq+0x0/0x53) Disabling IRQ #217 -- Jesper Juhl Don't top-post http://www.catb.org/~esr/jargon/html/T/top-post.html Plain text mails only, please http://www.expita.com/nomime.html