Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 9 Nov 2000 02:40:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 9 Nov 2000 02:40:08 -0500 Received: from nifty.blue-labs.org ([208.179.0.193]:36648 "EHLO nifty.Blue-Labs.org") by vger.kernel.org with ESMTP id ; Thu, 9 Nov 2000 02:40:01 -0500 Message-ID: <3A0A54B8.66A66AAB@linux.com> Date: Wed, 08 Nov 2000 23:39:36 -0800 From: David Ford Organization: Blue Labs X-Mailer: Mozilla 4.75 [en] (X11; U; Linux 2.4.0-test11 i686) X-Accept-Language: en MIME-Version: 1.0 To: Greg KH CC: linux-kernel@vger.kernel.org, Keith Owens Subject: Re: [bug] usb-uhci locks up on boot half the time In-Reply-To: <3A09F158.910C925@linux.com> <14857.62696.393621.795132@somanetworks.com> <3A09FD81.E7DA9352@linux.com> <20001108200844.A13446@wirex.com> <3A0A25C1.C46E392B@linux.com> <20001108215901.A13572@wirex.com> Content-Type: multipart/mixed; boundary="------------AE85AA585E961E326C069E54" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a multi-part message in MIME format. --------------AE85AA585E961E326C069E54 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sigh. That's not the real hang position. I needed to step slower. kdb> ss 0xc01100f8 pci_conf1_write_config_word+0x40: outw %ax,(%dx) SS trap at 0xc01100fa (pci_conf1_write_config_word+0x42) 0xc01100fa pci_conf1_write_config_word+0x42: popl %ebx kdb> ss 0xc01100fa pci_conf1_write_config_word+0x42: popl %ebx SS trap at 0xc01100fb (pci_conf1_write_config_word+0x43) 0xc01100fb pci_conf1_write_config_word+0x43: xorl %eax,%eax kdb> ss 0xc01100fb pci_conf1_write_config_word+0x43: xorl %eax,%eax SS trap at 0xc01100fd (pci_conf1_write_config_word+0x45) 0xc01100fd pci_conf1_write_config_word+0x45: popl %esi kdb> ss 0xc01100fd pci_conf1_write_config_word+0x45: popl %esi SS trap at 0xc01100fe (pci_conf1_write_config_word+0x46) 0xc01100fe pci_conf1_write_config_word+0x46: movl %ebp,%esp kdb> ss 0xc01100fe pci_conf1_write_config_word+0x46: movl %ebp,%esp SS trap at 0xc0110100 (pci_conf1_write_config_word+0x48) 0xc0110100 pci_conf1_write_config_word+0x48: popl %ebp kdb> ss 0xc0110100 pci_conf1_write_config_word+0x48: popl %ebp SS trap at 0xc0110101 (pci_conf1_write_config_word+0x49) 0xc0110101 pci_conf1_write_config_word+0x49: ret kdb> ss 0xc0110101 pci_conf1_write_config_word+0x49: ret SS trap at 0xc020c7af (pci_write_config_word+0x2b) 0xc020c7af pci_write_config_word+0x2b: pushl %ebx kdb> ss 0xc020c7af pci_write_config_word+0x2b: pushl %ebx SS trap at 0xc020c7b0 (pci_write_config_word+0x2c) 0xc020c7b0 pci_write_config_word+0x2c: popf kdb> ss 0xc020c7b0 pci_write_config_word+0x2c: popf Here is where it hung this time. Register dump below. usb-uhci.c: $Revision: 1.242 $ time 20:13:32 Nov 8 2000 usb-uhci.c: High bandwidth mode enabled Instruction(i) breakpoint #0 at 0xc03f5a8c (adjusted) 0xc03f5a8c start_uhci: pushl %ebp Entering kdb (current=0xcfff4000, pid 1) due to Breakpoint @ 0xc03f5a8c kdb> bp pci_write_config_word+0x2c Instruction(i) BP #1 at 0xc020c7b0 (pci_write_config_word+0x2c) is enabled globally adjust 1 kdb> g Instruction(i) breakpoint #1 at 0xc020c7b0 (adjusted) 0xc020c7b0 pci_write_config_word+0x2c: popf Entering kdb (current=0xcfff4000, pid 1) due to Breakpoint @ 0xc020c7b0 kdb> rd eax = 0x00000000 ebx = 0x00000256 ecx = 0x000000c0 edx = 0x00000cfc esi = 0x000000c0 edi = 0xc144c800 esp = 0xcfff5f74 eip = 0xc020c7b0 ebp = 0xcfff5f90 xss = 0x00000018 xcs = 0x00000010 eflags = 0x00000046 xds = 0xc1440018 xes = 0x00000018 origeax = 0xffffffff ®s = 0xcfff5f40 0xc020c7aa pci_write_config_word+0x26: movl 0x10(%edx),%eax 0xc020c7ad pci_write_config_word+0x29: call *%eax 0xc020c7af pci_write_config_word+0x2b: pushl %ebx 0xc020c7b0 pci_write_config_word+0x2c: popf 0xc020c7b1 pci_write_config_word+0x2d: jmp 0xc020c7bc pci_write_config_word+0x38 0xc020c7b3 pci_write_config_word+0x2f: nop 0xc020c7b4 pci_write_config_word+0x30: movl $0x87,%eax 0xc020c7b9 pci_write_config_word+0x35: leal 0x0(%esi),%esi 0xc020c7bc pci_write_config_word+0x38: leal 0xfffffff4(%ebp),%esp I'm going to have to drop this debug shortly and return to my regular work :( -d -- "The difference between 'involvement' and 'commitment' is like an eggs-and-ham breakfast: the chicken was 'involved' - the pig was 'committed'." --------------AE85AA585E961E326C069E54 Content-Type: text/x-vcard; charset=us-ascii; name="david.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for David Ford Content-Disposition: attachment; filename="david.vcf" begin:vcard n:Ford;David x-mozilla-html:TRUE adr:;;;;;; version:2.1 email;internet:david@kalifornia.com title:Blue Labs Developer x-mozilla-cpt:;14688 fn:David Ford end:vcard --------------AE85AA585E961E326C069E54-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/