From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3A54BB35.B9C42734@esd-electronics.com> Date: Thu, 04 Jan 2001 19:04:37 +0100 From: Matthias Fuchs MIME-Version: 1.0 To: linuxppc-embedded Subject: 4MB initrd crashes linux on 405 hardhat linux Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Hello, I want to use an initial ramdisk (4 MB) on a IBM405 board. I am using Monta Vistas Hardhat Linux (kernel 2.4.0-test2). I have no problems with ramdisk with up to 2MB. They are working fine ! Here are the startup messages of my kernel, when it crashes. I put some debug messages in the source to see where it crashes. I found out that the kernel crashes while unpacking the compressed image. Linux version 2.4.0-test2_mvista_001126 (matthias@pc-linux-dev) (gcc version 2.95.2 19991024 (release)) #55 Don Jan 4 18:30: 57 CET 2001 ---------- progress: 0x3eab setup_arch: enter ---------- progress: 0x3eab setup_arch: bootmem ----- KGDB not requested ----- ---------- progress: 0x3eab arch: exit On node 0 totalpages: 4096 zone(0): 4096 pages. zone(1): 0 pages. zone(2): 0 pages. Kernel command line: root=/dev/ram console=ttyS0,115200 Calibrating delay loop... 199.88 BogoMIPS Memory: 13440k available (1096k kernel code, 520k data, 168k init) [c0000000,c1000000] 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 PCI: Probing PCI hardware ---------- progress: 0xffff Linux NET4.0 for Linux 2.3 Based upon Swansea University Computer Society NET3.039 NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 1024 bind 1024) Starting kswapd v1.6 i2c-core.o: i2c core module i2c-dev.o: i2c /dev entries driver module i2c-core.o: driver i2c-dev dummy driver registered. pty: 256 Unix98 ptys configured RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: registered device at major 7 loop: enabling 8 loop devices Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx cpci405ide: physical address=f0100000 cpci405ide: mapped address=da000000 ide0: CPCI405 IDE interface phy speed read failed phy duplex read failed <5>eth0: PPC405 EMAC 10 Mbs Half duplex MAC 00:02:27:00:00:67 do rd_image_load do identify_ramdisk_image RAMDISK: Compressed image found at block 0 identify_ramdisk_image done do crd_load do gunzip, inbuf= c0223000 flush_window ...0 copy from c0278000 to c0224000 (these are the read an write addresses from the copy_from_user call in the ramdisk driver) copy done copy from c0278400 to c0224400 copy done copy from c0278800 to c0224800 copy done copy from c0278c00 to c0224c00 copy done copy from c0279000 to c0276000 copy done copy from c0279400 to c0276400 copy done copy from c0279800 to c0276800 copy done copy from c0279c00 to c0276c00 copy done copy from c027a000 to c0275000 copy done copy from c027a400 to c0275400 copy done copy from c027a800 to c0275800 copy done copy from c027ac00 to c0275c00 copy done copy from c027b000 to c0274000 copy done copy from c027b400 to c0274400 copy done copy from c027b800 to c0274800 copy done copy from c027bc00 to c0274c00 copy done copy from c027c000 to c0273000 copy done copy from c027c400 to c0273400 copy done copy from c027c800 to c0273800 copy done copy from c027cc00 to c0273c00 copy done copy from c027d000 to c0272000 copy done copy from c027d400 to c0272400 copy done copy from c027d800 to c0272800 copy done copy from c027dc00 to c0272c00 copy done copy from c027e000 to c0271000 copy done copy from c027e400 to c0271400 copy done copy from c027e800 to c0271800 copy done copy from c027ec00 to c0271c00 copy done copy from c027f000 to c0270000 copy done copy from c027f400 to c0270400 copy done copy from c027f800 to c0270800 copy done copy from c027fc00 to c0270c00 copy done written ! flush_window ...8000 copy from c0278000 to c026e000 copy done copy from c0278400 to c026e400 copy done ... ... copy from c027f800 to c0dee800 copy done copy from c027fc00 to c0deec00 copy done written ! flush_window ...278000 copy from c0278000 to c0ded000 copy done copy from c0278400 to c0ded400 copy done copy from c0278800 to c0ded800 copy done copy from c0278c00 to c0dedc00 copy done copy from c0279000 to c0dec000 copy done copy from c0279400 to c0dec400 copy done copy from c0279800 to c0dec800 copy done copy from c0279c00 to c0decc00 copy done copy from c027a000 to c0deb000 copy done copy from c027a400 to c0deb400 copy done copy from c027a800 to c0deb800 copy done copy from c027ac00 to c0debc00 copy done NIP: C00153D4 XER: 20000000 LR: C00153D0 REGS: c0219270 TRAP: 1100 MSR: 00001230 EE: 0 PR: 0 FP: 0 ME: 1 IR/DR: 11 TASK = c0218000[1] 'swapper' Last syscall: 120 last math 00000000 last altivec 00000000 GPR00: 00000000 C0219320 C0218000 00000001 00009230 C0219358 C0219378 01234567 GPR08: C0218000 C0007488 00000000 C0219368 00000000 71000000 00000000 00000400 GPR16: 00000000 00003000 00005000 00000100 00001000 C027B000 000009EC C01A0000 GPR24: 00000000 00000000 00000400 000003FF C015B3E0 C0160000 00000000 C0219320 Call backtrace: C019AF54 C003A234 C0037870 C003790C C003E21C C0176A2C C009885C C00992A8 C00993F0 C009947C C0099988 C0176BA4 C01764EC C01768F0 C0174DEC C0170888 C0170924 C00024F4 C0007BD8 Kernel panic: kernel access of bad area pc c00153d4 lr c00153d0 address 40 tsk swapper/1 --------------------------- What could be the problem of this crash ? Matthias ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/