[SOLVED] kernel panic when booting linux-2.6.30 uImage on at91rm9200ek board

hello,
I built a uImage using the linux-2.6.30 kernel source. My toolchain is gcc (GCC) 3.2.3, coming from Sourcery_G++_Lite. My uboot is version 1.1.1 and I boot via NFS.

I'm getting a kernel panic right around the mounting of the filesystem.

my filesystem was built using Buildroot and a different toolchain (gnu 4.4.x). I realize this is not recommended to mix toolchains but I can't get a clean build of the kernel via Buildroot and gnu 4.4.x when I select the at01rm9200 default config (different post).

anything wrong with my bootargs ?

any help is welcome,

Thanks
Alex



Low Level Init performed


boot 1.0 (Nov 25 2003 - 23:08:05)

Uncompressing image...



U-Boot 1.1.1 (Oct 2 2004 - 19:04:01)

U-Boot code: 21F00000 -> 21F16DF0 BSS: -> 21F1B4AC
RAM Configuration:
Bank #0: 20000000 32 MB
Atmel: AT49BV6416 (64Mbit)
Flash: 8 MB
In: serial
Out: serial
Err: serial
Hit any key to stop autoboot: 0
TFTP from server 128.224.220.10; our IP address is 128.224.218.109
Filename 'arm9_at91rm9200ek/boot/uImage'.
Load address: 0x21000000
Loading: #################################################################
#################################################################
#################################################################
############################################################
done
Bytes transferred = 1305024 (13e9c0 hex)
## Booting image at 21000000 ...
Image Name: Linux-2.6.30
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1304960 Bytes = 1.2 MB
Load Address: 20008000
Entry Point: 20008000
Verifying Checksum ... OK
OK

Starting kernel ...

Uncompressing Linux.................................................................................... done, booting th
e kernel.
Linux version 2.6.30 (alexf@van-cc-pb01l) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #11 Wed Jul 8 21:44:04 CES
T 2009
CPU: ARM920T [41129200] revision 0 (ARMv4T), cr=c0007177
CPU: VIVT data cache, VIVT instruction cache
Machine: Atmel AT91RM9200-EK
Memory policy: ECC disabled, Data cache writeback
Clocks: CPU 179 MHz, master 59 MHz, main 18.432 MHz
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line: root=/dev/nfs rw nfsroot=128.224.220.10:/guer1/tftpboot/arm9_at91rm9200ek/filesystem ip=128.224.218
.109:128.224.220.10:128.224.218.1:255.255.0.0::eth0:none;
NR_IRQS:192
AT91: 128 gpio irqs in 4 banks
PID hash table entries: 128 (order: 7, 512 bytes)
Console: colour dummy device 80x30
console [tty0] enabled
console [ttyS0] enabled
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Memory: 32MB = 32MB total
Memory: 29752KB available (2372K code, 211K data, 108K init, 0K highmem)
SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Calibrating delay loop... 89.79 BogoMIPS (lpj=350208)
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
net_namespace: 520 bytes
NET: Registered protocol family 16
bio: create slab <bio-0> at 0
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
NET: Registered protocol family 1
NetWinder Floating Point Emulator V0.97 (double precision)
msgmni has been set to 58
io scheduler noop registered
io scheduler anticipatory registered (default)
atmel_usart.0: ttyS0 at MMIO 0xfefff200 (irq = 1) is a ATMEL_SERIAL
atmel_usart.1: ttyS1 at MMIO 0xfffc4000 (irq = 7) is a ATMEL_SERIAL
brd: module loaded
eth0: Link now 100-FullDuplex
eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (12:24:96:78:9a:bc)
eth0: Davicom 9161 PHY (Copper)
physmap platform flash device: 00200000 at 10000000
physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank
NOR chip too large to fit in mapping. Attempting to cope...
Amd/Fujitsu Extended Query Table at 0x0041
physmap-flash.0: Swapping erase regions for broken CFI table.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
Reducing visibility of 8192KiB chip to 2048KiB
RedBoot partition parsing not available
usbmon: debugfs is not available
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
at91_ohci at91_ohci: AT91 OHCI
at91_ohci at91_ohci: new USB bus registered, assigned bus number 1
at91_ohci at91_ohci: irq 23, io mem 0x00300000
usb usb1: New USB device found, idVendor=1d6b, idProduct=0001
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: AT91 OHCI
usb usb1: Manufacturer: Linux 2.6.30 ohci_hcd
usb usb1: SerialNumber: at91
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
udc: at91_udc version 3 May 2006
mice: PS/2 mouse device common for all mice
IRQ 1/at91_rtc: IRQF_DISABLED is not guaranteed on shared IRQs
at91_rtc at91_rtc: rtc core: registered at91_rtc as rtc0
AT91 Real Time Clock driver.
i2c /dev entries driver
i2c-gpio i2c-gpio: using pins 57 (SDA) and 58 (SCL)
AT91 Watchdog Timer enabled (5 seconds, nowayout)
TCP cubic registered
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
at91_rtc at91_rtc: setting system clock to 1998-01-01 00:00:17 UTC (883612817)
eth0: Link now 100-FullDuplex
IP-Config: Complete:
device=eth0, addr=128.224.218.109, mask=255.255.0.0, gw=128.224.218.1,
host=128.224.218.109, domain=, nis-domain=(none),
bootserver=128.224.220.10, rootserver=128.224.220.10, rootpath=
Looking up port of RPC 100003/2 on 128.224.220.10
Looking up port of RPC 100005/1 on 128.224.220.10
VFS: Mounted root (nfs filesystem) on device 0:12.
Freeing init memory: 108K
Kernel panic - not syncing: Attempted to kill init!
Backtrace:
[<c0027774>] (dump_backtrace+0x0/0x114) from [<c01ee848>] (dump_stack+0x18/0x1c)
r7:c1c1bf54 r6:c1c18000 r5:c1c18000 r4:c028de94
[<c01ee830>] (dump_stack+0x0/0x1c) from [<c01ee898>] (panic+0x4c/0x11c)
[<c01ee84c>] (panic+0x0/0x11c) from [<c003c684>] (do_exit+0x70/0x58c)
r3:c027bb8c r2:c1c18000 r1:c1c1bd1c r0:c02411b4
[<c003c614>] (do_exit+0x0/0x58c) from [<c003cc30>] (do_group_exit+0x90/0xc4)
[<c003cba0>] (do_group_exit+0x0/0xc4) from [<c0046644>] (get_signal_to_deliver+0x2e0/0x318)
r4:0000000b
[<c0046364>] (get_signal_to_deliver+0x0/0x318) from [<c0025f2c>] (do_signal+0x58/0x4dc)
[<c0025ed4>] (do_signal+0x0/0x4dc) from [<c00263e0>] (do_notify_resume+0x30/0x34)
[<c00263b0>] (do_notify_resume+0x0/0x34) from [<c0023dcc>] (work_pending+0x1c/0x20)

Originally Posted by alexf007 Kernel panic - not syncing: Attempted to kill init!

This problem has been written about extensively. Use the search page on LQ to find threads about this. Or use Google. Or both.

I have of course searched google about this before posting a thread. Could you point me to some URL please ? Thanks in advance.

Hi ,
Im using the at91sam9261 board. canu please let me know how did u enable the ttyS1 port? what changes do we hav to make in the board file?
warm regards,
Ravi Kulkarni.

hi. I didn't specifically enabled it, so I'd say it was by default for the 9200EK board...
By the way, I'm past my original problem. I went back a couple of kernel revs, so I'm using 2.6.28 now on which buildroot lets me apply a specific atmel patch. Kernel and NFS are running fine now. Trying to get matchbox to run now . Thanks, Alex