From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263761AbTDHCXA (for ); Mon, 7 Apr 2003 22:23:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263876AbTDHCXA (for ); Mon, 7 Apr 2003 22:23:00 -0400 Received: from franka.aracnet.com ([216.99.193.44]:22425 "EHLO franka.aracnet.com") by vger.kernel.org with ESMTP id S263761AbTDHCW6 (for ); Mon, 7 Apr 2003 22:22:58 -0400 Date: Mon, 07 Apr 2003 19:33:19 -0700 From: "Martin J. Bligh" To: linux-kernel Subject: [Bug 550] New: reading /proc/bus/pnp/escd results in oops Message-ID: <7590000.1049769199@[10.10.2.4]> X-Mailer: Mulberry/2.2.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org http://bugme.osdl.org/show_bug.cgi?id=550 Summary: reading /proc/bus/pnp/escd results in oops Kernel Version: 2.5.67 Status: NEW Severity: normal Owner: ambx1@neo.rr.com Submitter: bwindle-kbt@fint.org Distribution: Debian Testing Hardware Environment: Compaq Armada 1650DMT Laptop Software Environment: Problem Description: Linux Plug and Play Support v0.96 (c) Adam Belay PnPBIOS: Scanning system for PnP BIOS support... PnPBIOS: Found PnP BIOS installation structure at 0xc00fe2d0 PnPBIOS: PnP BIOS version 1.0, entry 0xf0000:0x2621, dseg 0xf0000 PnPBIOS: 19 nodes reported by PnP BIOS; 19 recorded by driver block request queues: 128 requests per read queue 128 requests per write queue 8 requests per batch enter congestion at 15 exit congestion at 17 isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found (cat /proc/bus/pnp/escd here) Unable to handle kernel paging request at virtual address 000ea002 printing eip: 0000100c *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0098:[<0000100c>] Not tainted EFLAGS: 00010012 EIP is at 0x100c eax: 80000100 ebx: 00000411 ecx: 00008000 edx: 00000000 esi: 000e0000 edi: 00000000 ebp: c3b97ea8 esp: c3b97e7c ds: 00a0 es: 00a8 ss: 0068 Process cat (pid: 301, threadinfo=c3b96000 task=c4d4e660) Stack: 04118000 00120100 267a0fcb 00000006 007b007b 00000202 000e0000 00000000 000000a0 00000042 00b000a8 c3b97efc 0090000b 00000042 00b000a8 000000a0 00000000 c020502f 00000060 00000046 00000000 00000000 0000007b 0000007b Call Trace: [] __pnp_bios_read_escd+0x1a7/0x2a0 [] pnp_bios_read_escd+0x11/0x34 [] proc_read_escd+0x66/0xfc [] proc_file_read+0xb7/0x1fc [] vfs_read+0xa2/0xd4 [] sys_read+0x2a/0x40 [] syscall_call+0x7/0xb Code: Bad EIP value. <6>note: cat[301] exited with preempt_count 2 bad: scheduling while atomic! Call Trace: [] schedule+0x40/0x5d4 [] unmap_vmas+0xfd/0x2e0 [] __cond_resched+0x17/0x1c [] unmap_vmas+0x1d4/0x2e0 [] exit_mmap+0xdd/0x24c [] mmput+0xc6/0xe4 [] do_exit+0x28a/0x900 [] die+0x18f/0x190 [] do_page_fault+0x30b/0x449 [] do_page_fault+0x0/0x449 [] do_softirq+0x52/0xb0 [] do_IRQ+0x2e4/0x300 [] common_interrupt+0x18/0x20 [] poison_obj+0x35/0x44 [] cache_init_objs+0x44/0x104 [] error_code+0x2d/0x40 [] __pnp_bios_read_escd+0x1a7/0x2a0 [] pnp_bios_read_escd+0x11/0x34 [] proc_read_escd+0x66/0xfc [] proc_file_read+0xb7/0x1fc [] vfs_read+0xa2/0xd4 [] sys_read+0x2a/0x40 [] syscall_call+0x7/0xb drivers/pnp/pnpbios/core.c:191: spin_lock(drivers/pnp/pnpbios/core.c:c03e7260) a lready locked by drivers/pnp/pnpbios/core.c/191