From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) by ozlabs.org (Postfix) with ESMTP id 3789267B28 for ; Thu, 1 Jun 2006 11:03:01 +1000 (EST) To: "Behre, Frederik - LT" From: Wolfgang Denk Subject: Re: AW: MPC8270 on Microsys PM827 Kernel 2.6 Oops: kernel access of bad area, sig: 11 [#1] Mime-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 In-reply-to: Your message of "Wed, 31 May 2006 09:49:58 +0200." Date: Thu, 01 Jun 2006 03:02:59 +0200 Sender: wd@denx.de Message-Id: <20060601010259.35A1C353B06@atlas.denx.de> Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , In message you wrote: > Thanks for answer me. > I want to install Xenomai on this mpc8270. Therefor I need 2.6.14 > ,because I need the adeos patch. You should be able to use a more recent kenrel tree as well. Looking closer at your problem, it seems obvious where the problem is: ... > RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize > NFTL driver: nftlcore.c $Revision: 1.97 $, nftlmount.c $Revision: 1.40 $ > Oops: kernel access of bad area, sig: 11 [#1] > NIP: C0107A14 LR: C0106660 SP: C036FE30 REGS: c036fd80 TRAP: 0300 Not > tainted ... That's when the kernel attempts to access the flash devices on your board. Please use a later kernel. I just verified that the 2.6.15 kernel (git tag DENX-v2.6.15 in our repo) works fine: Linux version 2.6.15-gref: ref (wd@pollux.denx.de) (gcc version 4.0.0 (DENX ELDK 4.0 4.0.0)) #1 Thu Jun 1 02:55:30 MEST 2006 Microsys PM82x PowerPC port arch/ppc/syslib/m82xx_pci.c: The PCI bus is 37500000 Mhz. Waiting 0.5 seconds after deasserting RST... Built 1 zonelists Kernel command line: root=/dev/nfs rw nfsroot=192.168.1.1:/opt/eldk-4.0-2006-02-19/ppc_6xx ip=192.168.200.5:192.168.1.1::255.255.0.0:pm827:eth0:off panic=1 console=ttyCPM1,9600 PID hash table entries: 1024 (order: 10, 16384 bytes) Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Memory: 127616k available (1592k kernel code, 412k data, 124k init, 0k highmem) Mount-cache hash table entries: 512 NET: Registered protocol family 16 PCI: Probing PCI hardware PCI: Cannot allocate resource region 0 of device 0000:00:00.0 PCI: Cannot allocate resource region 1 of device 0000:00:00.0 io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered Generic RTC Driver v1.07 Serial: CPM driver $Revision: 0.01 $ ttyCPM0 at MMIO 0xf0011a80 (irq = 4) is a CPM UART ttyCPM1 at MMIO 0xf0011a90 (irq = 5) is a CPM UART ttyCPM2 at MMIO 0xf0011a00 (irq = 40) is a CPM UART ttyCPM3 at MMIO 0xf0011a20 (irq = 41) is a CPM UART ttyCPM4 at MMIO 0xf0011a40 (irq = 42) is a CPM UART ttyCPM5 at MMIO 0xf0011a60 (irq = 43) is a CPM UART RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize NFTL driver: nftlcore.c $Revision: 1.98 $, nftlmount.c $Revision: 1.41 $ Found: Intel 28F640C3B PM82x-0: Found 4 x16 devices at 0x0 in 64-bit bank PM82x flash bank 0: Using static image partition definition Creating 4 MTD partitions on "PM82x-0": 0x00000000-0x00040000 : "U-Boot" 0x00040000-0x00100000 : "kernel" 0x00100000-0x00400000 : "ramdisk" 0x00400000-0x02000000 : "user" No valid DiskOnChip devices found eth0: FCC ENET Version 0.3, 00:40:42:81:27:0d mii_reg: 608e78e2 eth0: Phy @ 0x1, type LXT971 (0x001378e2) NET: Registered protocol family 2 IP route cache hash table entries: 2048 (order: 1, 8192 bytes) TCP established hash table entries: 8192 (order: 3, 32768 bytes) TCP bind hash table entries: 8192 (order: 3, 32768 bytes) TCP: Hash tables configured (established 8192 bind 8192) TCP reno registered TCP bic registered NET: Registered protocol family 1 NET: Registered protocol family 17 eth0: config: auto-negotiation on, 100HDX, 10HDX. IP-Config: Complete: device=eth0, addr=192.168.200.5, mask=255.255.0.0, gw=255.255.255.255, host=pm827, domain=, nis-domain=(none), bootserver=192.168.1.1, rootserver=192.168.1.1, rootpath= Looking up port of RPC 100003/2 on 192.168.1.1 Looking up port of RPC 100005/1 on 192.168.1.1 VFS: Mounted root (nfs filesystem). Freeing unused kernel memory: 124k init ... Also, the current top-of-tree version (Linux-2.6.17-rc5-g1d475c9f) works fine. Please use current code. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de We are Microsoft. Unix is irrelevant. Openness is futile. Prepare to be assimilated.