Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267200AbTGLAnE (ORCPT ); Fri, 11 Jul 2003 20:43:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267201AbTGLAnE (ORCPT ); Fri, 11 Jul 2003 20:43:04 -0400 Received: from pa208.myslowice.sdi.tpnet.pl ([213.76.228.208]:49281 "EHLO finwe.eu.org") by vger.kernel.org with ESMTP id S267200AbTGLAm7 (ORCPT ); Fri, 11 Jul 2003 20:42:59 -0400 Date: Sat, 12 Jul 2003 02:57:38 +0200 From: Jacek Kawa To: Russell King Cc: "Theodore Ts'o" , Kernel Mailing List Subject: 2.5.75, 8250 Oops Message-ID: <20030712005738.GA15060@finwe.eu.org> Mail-Followup-To: Russell King , Theodore Ts'o , Kernel Mailing List Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Organization: Kreatorzy Kreacji Bialej User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2922 Lines: 95 Hi! pppd was trying to open /dev/ttyS0 (persist & maxfail 0, etc.), but I had not created alias for it.... Jul 12 01:29:19 finwe pppd[643]: Failed to open /dev/ttyS0: No such device ...so I manually loaded 8250 and: Serial: 8250/16550 driver $Revision: 1.90 $ IRQ sharing disabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A Unable to handle kernel NULL pointer dereference at virtual address 00000014 printing eip: d08c6b21 *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[_end+274047177/1070142888] Not tainted EFLAGS: 00010282 EIP is at uart_close+0x11/0x200 [core] eax: d08c6b10 ebx: cbdfe000 ecx: 00000000 edx: cee66000 esi: cbbe6600 edi: 00000000 ebp: cbdfe000 esp: cec79e58 ds: 007b es: 007b ss: 0068 Process pppd (pid: 643, threadinfo=cec78000 task=c139f980) Stack: 00000000 c01bb9d5 ffffffff cbbe6600 00000000 cbdfe000 cbbe6600 00000001 00000000 c01bb4c1 cbdfe000 cbbe6600 00000000 d08c9bc0 c010822c d08c9bc0 00000000 00000004 d08c84a6 d08b7b8e 00000001 00000000 00000004 00000000 Call Trace: [tty_fasync+133/320] tty_fasync+0x85/0x140 [release_dev+1777/1840] release_dev+0x6f1/0x730 [__down_failed+8/12] __down_failed+0x8/0xc [_end+274053710/1070142888] .text.lock.core+0xcd/0x1a5 [core] [_end+274049152/1070142888] uart_open+0x58/0x160 [core] [tty_open+300/880] tty_open+0x12c/0x370 [chrdev_open+242/544] chrdev_open+0xf2/0x220 [dentry_open+336/528] dentry_open+0x150/0x210 [filp_open+104/112] filp_open+0x68/0x70 [sys_open+91/144] sys_open+0x5b/0x90 [syscall_call+7/11] syscall_call+0x7/0xb Code: 8b 47 14 89 44 24 10 b8 00 e0 ff ff 21 e0 8b 00 8b 40 14 85 ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Linux finwe 2.5.75 #1 Fri Jul 11 01:02:39 CEST 2003 i686 GNU/Linux processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 11 model name : Intel(R) Celeron(TM) CPU 1300MHz stepping : 1 cpu MHz : 1305.846 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 2580.48 Gnu C 3.3.1 Gnu make 3.80 util-linux 2.11z mount 2.11z e2fsprogs 1.34-WIP jfsutils 1.1.1 xfsprogs 2.4.12 PPP 2.4.1 Linux C Library 2.3.1 Dynamic linker (ldd) 2.3.1 Procps 3.1.9 Net-tools 1.60 Console-tools 0.2.3 Sh-utils 5.0 config: http://zeus.polsl.gliwice.pl/~jfk/kernel/2.5.75/config1 jk :) -- Jacek Kawa - 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/