From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762808AbXGFODe (ORCPT ); Fri, 6 Jul 2007 10:03:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753694AbXGFODY (ORCPT ); Fri, 6 Jul 2007 10:03:24 -0400 Received: from mail.phnxsoft.com ([195.227.45.4]:4336 "EHLO posthamster.phnxsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753665AbXGFODX (ORCPT ); Fri, 6 Jul 2007 10:03:23 -0400 Message-ID: <468E4BA5.8010601@imap.cc> Date: Fri, 06 Jul 2007 16:03:17 +0200 From: Tilman Schmidt User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.8.1.4) Gecko/20070509 SeaMonkey/1.1.2 Mnenhy/0.7.5.666 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Andrew Morton Subject: kgdb Bad IO access (was: 2.6.22-rc6-mm1) References: <20070628034321.38c9f12b.akpm@linux-foundation.org> In-Reply-To: <20070628034321.38c9f12b.akpm@linux-foundation.org> X-Enigmail-Version: 0.95.1 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig2713E61736B9BF6CD63B50B5" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig2713E61736B9BF6CD63B50B5 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Andrew Morton schrieb: > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc= 6/2.6.22-rc6-mm1/ >=20 > - Added the kgdb tree, as git-kgdb.patch (Jason Wessel > ) >=20 > This is a large patch which unifies all the various kgdb stubs lying > around various architectures and extends kgdb support to other > architectures. Supported architectures are at present arm, i386, ia6= 4, > mips, ppc32, ppc64, sh, and x86_64. >=20 > Subject to review, we're aiming this at 2.6.24. Built a kernel with this just for fun on a Pentium D 940 system running a 32 bit install of SuSE 10.2. It complained thusly relatively early during startup: --------8<--------8<--------8<--------8<--------8<--------8<--------8< Bad IO access at port 10000 (outb(val,port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [iowrite8+52/54] iowrite8+0x34/0x36 [kgdb8250_uart_init+164/609] kgdb8250_uart_init+0xa4/0x261 [kgdb_init_io+172/200] kgdb_init_io+0xac/0xc8 [kgdb_late_entry+54/164] kgdb_late_entry+0x36/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Bad IO access at port 10000 (return inb(port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [ioread8+40/47] ioread8+0x28/0x2f [kgdb8250_uart_init+334/609] kgdb8250_uart_init+0x14e/0x261 [kgdb_init_io+172/200] kgdb_init_io+0xac/0xc8 input: AT Translated Set 2 keyboard as /class/input/input1 [kgdb_late_entry+54/164] kgdb_late_entry+0x36/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Bad IO access at port 10000 (outb(val,port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [iowrite8+52/54] iowrite8+0x34/0x36 [kgdb8250_uart_init+164/609] kgdb8250_uart_init+0xa4/0x261 [kgdb8250_late_init+32/153] kgdb8250_late_init+0x20/0x99 [kgdb_late_entry+136/164] kgdb_late_entry+0x88/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Bad IO access at port 10000 (return inb(port)) WARNING: at lib/iomap.c:44 bad_io_access() [dump_trace+99/475] dump_trace+0x63/0x1db [show_trace_log_lvl+26/47] show_trace_log_lvl+0x1a/0x2f [show_trace+18/20] show_trace+0x12/0x14 [dump_stack+22/24] dump_stack+0x16/0x18 [bad_io_access+84/86] bad_io_access+0x54/0x56 [ioread8+40/47] ioread8+0x28/0x2f [kgdb8250_uart_init+334/609] kgdb8250_uart_init+0x14e/0x261 [kgdb8250_late_init+32/153] kgdb8250_late_init+0x20/0x99 [kgdb_late_entry+136/164] kgdb_late_entry+0x88/0xa4 [kernel_init+346/732] kernel_init+0x15a/0x2dc [kernel_thread_helper+7/16] kernel_thread_helper+0x7/0x10 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D KGDB failed to request the serial IRQ (0) registered taskstats version 1 Freeing unused kernel memory: 236k freed --------8<--------8<--------8<--------8<--------8<--------8<--------8< Apart from that, the kernel runs fine, though its subjectively a bit sluggish compared to 2.6.22-rc6-mm1 without kgdb. Its uname -a is: Linux xenon 2.6.22-rc6-mm1-test4 #10 SMP PREEMPT Thu Jul 5 23:41:32 CEST = 2007 i686 i686 i386 GNU/Linux I didn't even try to actually do anything with kgdb, though. The .config delta is: --- good.config-3 2007-07-05 22:35:30.000000000 +0200 +++ .config 2007-07-05 23:23:09.000000000 +0200 @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit # Linux kernel version: 2.6.22-rc6-mm1 -# Thu Jul 5 22:05:32 2007 +# Thu Jul 5 23:23:09 2007 # CONFIG_X86_32=3Dy CONFIG_GENERIC_TIME=3Dy @@ -35,7 +35,7 @@ # # General setup # -CONFIG_LOCALVERSION=3D"-test3" +CONFIG_LOCALVERSION=3D"-test4" CONFIG_LOCALVERSION_AUTO=3Dy CONFIG_SWAP=3Dy CONFIG_SWAP_PREFETCH=3Dy @@ -2529,8 +2529,24 @@ CONFIG_FAIL_MAKE_REQUEST=3Dy CONFIG_FAULT_INJECTION_DEBUG_FS=3Dy CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=3Dy -# CONFIG_WANT_EXTRA_DEBUG_INFORMATION is not set -# CONFIG_KGDB is not set +CONFIG_WANT_EXTRA_DEBUG_INFORMATION=3Dy +CONFIG_KGDB=3Dy +# CONFIG_KGDB_CONSOLE is not set +# CONFIG_KGDB_ONLY_MODULES is not set +CONFIG_KGDB_8250_NOMODULE=3Dy +# CONFIG_KGDBOE_NOMODULE is not set +# CONFIG_KGDB_MPSC is not set +# CONFIG_KGDB_CPM_UART is not set +# CONFIG_KGDB_SIBYTE is not set +# CONFIG_KGDB_TXX9 is not set +# CONFIG_KGDB_SH_SCI is not set +# CONFIG_KGDB_AMBA_PL011 is not set +# CONFIG_KGDB_PXA_SERIAL is not set +# CONFIG_KGDBOE is not set +CONFIG_KGDB_8250=3Dy +CONFIG_KGDB_SIMPLE_SERIAL=3Dy +CONFIG_KGDB_BAUDRATE=3D115200 +CONFIG_KGDB_PORT_NUM=3D1 CONFIG_EARLY_PRINTK=3Dy CONFIG_DEBUG_STACKOVERFLOW=3Dy CONFIG_DEBUG_STACK_USAGE=3Dy HTH T. --=20 Tilman Schmidt E-Mail: tilman@imap.cc Bonn, Germany Diese Nachricht besteht zu 100% aus wiederverwerteten Bits. 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