On Fri, 2004-06-25 at 17:36, Ahmed A wrote: > Hello, > > I am using an embedded XScale board. I am trying to > run Linux 2.4.21 kernel (with some patches to make it > work on this platform). I have cross-compilation > tools. > > The kernel boots up pretty much all the way, gets an > IP address from DHCP, mounts nfs root, however panics > during Freeing init memory (I think). Naturally I > don't have access to the ksyms file, so the ksymoops > utility for this platform is not very helpful. Can > someone please suggeset ways/steps, or if there are > pointers on the net, to debug the oops trace. I am > pasting the output of the serial port below. > > Can someone please tell me what the phrase "In > interrupt handler - not syncing" means, specifically > the "not syncing" part. > > Thanks in advance, > Ahmed. > > RedBoot> > RedBoot> load -r -b 0x01008000 -h 10.0.16.156 zImage2 > Using default protocol (TFTP) > Raw file loaded 0x01008000-0x010bf00f, assumed entry > at 0x01008000 > RedBoot> > RedBoot> go 0x01008000 > Uncompressing > Linux.................................................... > done, booting the kernel. > Linux version 2.4.21-rmk1-ds3-iop1 (root@xlin6) (gcc > version 3.3.1 (MontaVista 3.3.1-3.0.10.0300532 > 2003-12-24)) #6 Thu Jun 24 12:03:16 PDT 2004 > CPU: XScale-IOP80321 revision 2 > Machine: Intel IQ31244 > Warning: bad configuration page, trying to continue > alloc_bootmem_low > memtable_init > On node 0 totalpages: 24576 > zone(0): 24576 pages. > zone(1): 0 pages. > zone(2): 0 pages. > Kernel command line: ip=boot root=nfs > console=ttyS0,115200 mem=96M > Setting up timer drift code > Calibrating delay loop... 593.10 BogoMIPS > Memory: 96MB = 96MB total > Memory: 95504KB available (1237K code, 240K data, 224K > init) > XScale Cache/TLB Locking Copyright(c) 2001 MontaVista > Software, Inc. > Dentry cache hash table entries: 16384 (order: 5, > 131072 bytes) > Inode cache hash table entries: 8192 (order: 4, 65536 > bytes) > Mount cache hash table entries: 512 (order: 0, 4096 > bytes) > Buffer-cache hash table entries: 4096 (order: 2, 16384 > bytes) > Page-cache hash table entries: 32768 (order: 5, 131072 > bytes) > POSIX conformance testing by UNIFIX > PCI: bus0: Fast back to back transfers disabled > PCI: bus1: Fast back to back transfers disabled > Linux NET4.0 for Linux 2.4 > Based upon Swansea University Computer Society > NET3.039 > Initializing RT netlink socket > Intel IOP3xx AAU RAID Copyright(c) 2003 Intel > Corporation > Starting kswapd > Journalled Block Device driver loaded > Installing knfsd (copyright (C) 1996 > okir@monad.swb.de). > pty: 256 Unix98 ptys configured > Serial driver version 5.05c (2001-07-08) with > MANY_PORTS SHARE_IRQ SERIAL_PCI enabled > ttyS00 at 0xfe800000x (irq = 28) is a 16550A > RAMDISK driver initialized: 16 RAM disks of 8192K size > 1024 blocksize > Intel(R) PRO/1000 Network Driver - version 5.0.43-k1 > Copyright (c) 1999-2003 Intel Corporation. > eth0: Intel(R) PRO/1000 Network Connection > eth1: Intel(R) PRO/1000 Network Connection > SCSI subsystem driver Revision: 1.00 > 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 8192 bind > 16384) > e1000: eth0 NIC Link is Up 100 Mbps Full Duplex > Sending BOOTP requests .<6>e1000: eth1 NIC Link is Up > 100 Mbps Full Duplex > . OK > IP-Config: Got BOOTP answer from 10.0.16.156, my > address is 10.0.16.198 > IP-Config: Complete: > device=eth0, addr=10.0.16.198, > mask=255.255.255.0, gw=10.0.16.2, > host=10.0.16.198, > domain=corp.silverbacksystems.com, > nis-domain=corp.silverbacksystems.com, > bootserver=10.0.16.156, rootserver=10.0.16.156, > rootpath=/opt/montavista/pro/devkit/arm/xscale_ > le/target > NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. > NetWinder Floating Point Emulator V0.97 (double > precision) > Looking up port of RPC 100003/2 on 10.0.16.156 > Looking up port of RPC 100005/1 on 10.0.16.156 > VFS: Mounted root (nfs filesystem). > Freeing init memory: 224K > Bad mode in data abort handler detected: mode ABT_32 > Vectors: (0xffff0000 to 0xffff0040) > 0000: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0020: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > Stubs: (0xffff0200 to 0xffff04b8) > 0200: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0220: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0240: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0260: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0280: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 02a0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 02c0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 02e0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0300: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0320: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0340: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0360: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0380: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 03a0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 03c0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 03e0: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0400: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0420: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0440: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0460: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 0480: 00000000 00000000 00000000 00000000 00000000 > 00000000 00000000 00000000 > 04a0: 00000000 00000000 00000000 00000000 00000000 > 00000000 > Internal error: Oops: 0 > CPU: 0 > pc : [<ffff000c>] lr : [<c00eb590>] Not tainted > sp : c017fec4 ip : 00000000 fp : c01956a8 > r10: a0016cb4 r9 : c0195ed8 r8 : c03c4acc > r7 : c03c4800 r6 : 00080000 r5 : 00000000 r4 : > c03c4acc > r3 : 00000007 r2 : c5e42bf4 r1 : c6c10000 r0 : > c03c4acc > Flags: nZCv IRQs off FIQs on Mode ABT_32 Segment > kernel > Control: 397F Table: A0008000 DAC: 0000001D > Process swapper (pid: 0, stack limit = 0xc017e368) > Stack: (0xc017ff0c to 0xc0180000) > ff00: ffffffff c03c4974 > c03c4960 c01966dc c00eb590 > ff20: c03c4974 00000000 c01966dc 00000000 c017ff3c > a0016cb4 c0056744 c017ff3c > ff40: c017ff3c c0195260 00000000 c0180040 00000000 > 60000093 ffffffff a0016cb4 > ff60: 00000000 c0052dcc c0195260 c0052ca8 00000001 > c0180060 fffffffe c0195240 > ff80: c00529d8 c017ffd0 0000001f 00000200 c0043468 > 60000013 c0042020 00000001 > ffa0: 00000032 00000000 60000013 c0043428 c017e000 > c018cbe8 c018cbf8 c0180d08 > ffc0: 69052c32 a0016cb4 00000000 20000013 c017ffe4 > c004345c c0043468 60000013 > ffe0: ffffffff c00434c0 c0196b30 c01b1830 c0008670 > c018d010 c01b1830 c0008080 > Backtrace: not available > Code: bad PC value. > Kernel panic: Aiee, killing interrupt handler! > In interrupt handler - not syncing If you can't use ksymoops, try to recompile your kernel with -g and use gdb with the address where the kernel crashes. Then you can do: # gdb /usr/src/linux/vmlinux (gdb) disassemble [saved IP address] And see the part of code where your kernel crashes, anyway I think that you can use kgdb or kdb. -- Alejandro Sanchez Acosta <asanchez@gnu.org> -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
