From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: "Etienne van der Linde" Subject: Kernel oops, sig: 7 at last init / modules To: linuxppc-embedded@lists.linuxppc.org Date: Wed, 10 Mar 2004 19:33:44 +0200 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hi guys I'm really desperate for some help - I've been struggling with this embedded system for a few months now (I'm still new at this) and are so close to getting my first login prompt... We are using an MPC8260 on a custom board with 16MB RAM, 16MB FLASH, DS1558W RTC, LAN83C183 PHY etc. I use Denx's U-Boot 0.4.0 for the boot loader, and then their PPC82xx embedded linux from their ELDK. For me it seems that the problem comes from executing a module on the file system (either on NFS or Ramdisk). Here is the output when using NFS: ##################################################### Total memory = 16MB; using 64kB for hash table (at c0190000) Linux version 2.4.4 (root@infineon.parsec) (gcc version 2.95.4 20010319 (prerelease/franzo/20011204)) #4 Mon Mar 8 144On node 0 totalpages: 4096 zone(0): 4096 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/nfs rw nfsroot=172.17.5.125:/predator ip=172.17.5.238:172.17.5.125:172.17.0.1:255.255.1Warning: real time clock seems stuck! Calibrating delay loop... 175.71 BogoMIPS Memory: 14412k available (1032k kernel code, 520k data, 48k init, 0k highmem) Dentry-cache hash table entries: 2048 (order: 2, 16384 bytes) Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 1024 (order: 1, 8192 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Starting kswapd v1.8 CPM UART driver version 0.02 ttyS0 on SMC1 at 0x0000, BRG1 ttyS1 on SCC1 at 0x8000, BRG1 ttyS2 on SCC2 at 0x8100, BRG1 pty: 256 Unix98 ptys configured block: queued sectors max/low 9488kB/3162kB, 64 slots per queue RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize eth0: FCC ENET Version 0.3, 00:00:00:80:00:01 eth0: Phy @ 0xe, type LAN83C183 (0x0016f840) JFFS version 1.0, (C) 1999, 2000 Axis Communications AB JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 1024 bind 1024) eth0: config: auto-negotiation on, 100FDX, 100HDX, 10FDX, 10HDX. NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. Looking up port of RPC 100003/2 on 172.17.5.125 Looking up port of RPC 100005/2 on 172.17.5.125 VFS: Mounted root (nfs filesystem). Freeing unused kernel memory: 48k init Machine check in kernel mode. Caused by (from SRR1=49030): Transfer error ack signal Oops: machine check, sig: 7 NIP: C000D594 XER: 20000000 LR: C0040238 SP: C0EE1DB0 REGS: c0ee1d00 TRAP: 0200 MSR: 00049030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c0ee0000[8] 'modprobe' Last syscall: 5 last math c0ee0000 last altivec 00000000 GPR00: 00000040 C0EE1DB0 C0EE0000 C0EDE000 0FFE0C58 00001000 C0EDDFFF 0FFDF304 GPR08: C01F25C0 00000000 C0EDE000 00000001 24888088 1003A1A8 00FFB000 007FFF79 GPR16: C013B478 C013B578 C0EE1F08 84888024 00009032 00EE1DF0 00000000 C0003DE4 GPR24: C0003B20 0FFEAA94 0FFED6A0 100389E8 00000008 C0EDE000 00001000 0FFE0C58 Call backtrace: C00401C8 C0033434 C0003B7C 00000000 0FF1A05C 0FF4FBF8 0FF4EA04 0FF4F858 0FF4C4C8 0FF85B60 0FF85998 10015108 0FEE67B8 0FECFF74 00000000 INIT: version 2.78 booting Machine check in kernel mode. Caused by (from SRR1=49030): Transfer error ack signal Oops: machine check, sig: 7 NIP: C000D594 XER: 20000000 LR: C0040238 SP: C01F1DF0 REGS: c01f1d40 TRAP: 0200 MSR: 00049030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c01f0000[1] 'init' Last syscall: 33 last math 00000000 last altivec 00000000 GPR00: 00000040 C01F1DF0 C01F0000 C0E7E000 0FFE6DA8 00001000 C0E7DFFF FEFEFEFF GPR08: C01F25E0 00000000 C0E7E000 00000001 4444408D 1001F5A8 00FFB000 007FFF79 GPR16: 00000001 00000000 007FFF00 10010000 00009032 001F1E70 00000000 C0003DE4 GPR24: C0003B20 10006BF0 7FFFFAD8 00000000 C01F1E38 C0E7E000 00001000 0FFE6DA8 Call backtrace: C00401C8 C00417FC C0032784 C0003B7C 3000B178 0FFB5D08 0FFB5F6C 1000660C 10006690 10003384 10004328 10005C64 10006088 0FECFF70 00000000 Kernel panic: Attempted to kill init! Rebooting in 1 seconds.. ##################################################### Here is the output when using a the ELDK ramdisk: ##################################################### Total memory = 16MB; using 64kB for hash table (at c0190000) Linux version 2.4.4 (root@infineon.parsec) (gcc version 2.95.4 20010319 (prerelease/franzo/20011204)) #4 Mon Mar 8 144On node 0 totalpages: 4096 zone(0): 4096 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/ram rw init=/bin/sh ip=172.17.5.238:172.17.5.125:172.17.0.1:255.255.0.0:predator::off 1Warning: real time clock seems stuck! Calibrating delay loop... 175.71 BogoMIPS Memory: 13044k available (1032k kernel code, 520k data, 48k init, 0k highmem) Dentry-cache hash table entries: 2048 (order: 2, 16384 bytes) Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes) Page-cache hash table entries: 4096 (order: 2, 16384 bytes) Inode-cache hash table entries: 1024 (order: 1, 8192 bytes) POSIX conformance testing by UNIFIX Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Starting kswapd v1.8 CPM UART driver version 0.02 ttyS0 on SMC1 at 0x0000, BRG1 ttyS1 on SCC1 at 0x8000, BRG1 ttyS2 on SCC2 at 0x8100, BRG1 pty: 256 Unix98 ptys configured block: queued sectors max/low 8576kB/2858kB, 64 slots per queue RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize eth0: FCC ENET Version 0.3, 00:00:00:80:00:01 eth0: Phy @ 0xe, type LAN83C183 (0x0016f840) RAMDISK: Compressed image found at block 0 Freeing initrd memory: 1367k freed JFFS version 1.0, (C) 1999, 2000 Axis Communications AB JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 1024 bind 1024) eth0: config: auto-negotiation on, 100FDX, 100HDX, 10FDX, 10HDX. NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. VFS: Mounted root (ext2 filesystem). Freeing unused kernel memory: 48k init Machine check in kernel mode. Caused by (from SRR1=49030): Transfer error ack signal Oops: machine check, sig: 7 NIP: C000D594 XER: 20000000 LR: C0040238 SP: C01FBE30 REGS: c01fbd80 TRAP: 0200 MSR: 00049030 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c01fa000[1] 'sh' Last syscall: 5 last math c01fa000 last altivec 00000000 GPR00: 00000040 C01FBE30 C01FA000 C0F72000 0FFE0C58 00001000 C0F71FFF 0FFDF304 GPR08: C01EE800 00000000 C0F72000 00000001 40444084 10063E5C 00FFB000 007FFF67 GPR16: 00000001 00000000 007FFF00 00FF6084 00009032 001FBE70 00000000 C0003DE4 GPR24: C0003B20 0FFEAA94 0FFED6A0 10070378 00000008 C0F72000 00001000 0FFE0C58 Call backtrace: C00401C8 C0033434 C0003B7C 00FF6084 0FF1A05C 0FF4FBF8 0FF4EA04 0FF4F858 0FF4C4C8 0FF85B60 0FF85998 1000F14C 1000F5C8 100106F0 1003A5E0 1003A200 0FECFF70 00000000 Kernel panic: Attempted to kill init! ##################################################### Furthermore, if I cross-compile my own simple program (that opens devices etc) I am able to run it flawlessly for a long time by passing an init=/tmp/myprogram argument to the kernel - no oops generated there...? Please let me know if any more information is required... Can someone please be so kind to help me debug this...what might be wrong / what should I do to try and get a better understanding of what is going wrong? I've tried getting ksymoops working (it was not included in my ELDK package, so I downloaded it from ftp.au.kernel.org), but I do not realy grasp the concept... Correct me if I'm wrong, but the kernel should create an oops report somewhere on the file system on which I can then run ksymoops (on my Redhat8 host machine?) to reconstruct the events of the oops? Thank you in advance Regards Etienne van der Linde Parsec (Pty) Ltd http://www.parsec.co.za _________________________________________________________________________________ Cut out the middle man with Dial Direct Insurance, click here for a free e-Quote! http://www.directquote.co.za/emailquote.asp?vdn=5800&tel=0860%2010%2022%2046 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/