Re: Booting ML405 (Kernel panic - not syncing: No init found)

[Marco Stornelli <marco.stornelli@coritel.it>]

neeraj garg ha scritto:
> Hi,
> 
> I am trying to boot ML405 with Linux source code downloaded from 
> http://www.git.xilinx.com . My cross compiler tool chain version is 
> gcc-3.4.1, glibc-2.3.2 and binutils-2.15. I have also downloaded RAMDISK 
> from same url (http://www.git.xilinx.com). When I download 
> zImage.initrd.elf using XMD everything goes fine, untill RAMDISK is 
> uncompressed, I get following messages :
> 
> 
> loaded at:     00400000 008E519C
> board data at: 008E3120 008E319C
> relocated to:  00404074 004040F0
> zimage at:     00404E65 00517841
> initrd at:     00518000 008E2B4A
> avail ram:     008E6000 02000000   //there is restriction to use 32 MB 
> of memory
> 
> some of the initial messages, and then
> 
> [    0.000000] Zone PFN ranges:
> [    0.000000]   DMA             0 ->     8192
> [    0.000000]   Normal       8192 ->     8192
> [    0.000000] Movable zone start PFN for each node
> [    0.000000] early_node_map[1] active PFN ranges
> [    0.000000]     0:        0 ->     8192
> [    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  
> Total pages: 8128
> [    0.000000] Kernel command line: console=ttyUL0,19200 ip=off 
> root=/dev/ram rw init=/sbin/init
> [    0.000000] Xilinx INTC #0 at 0x1E000000 mapped to 0xFDFFF000
> [    0.000000] PID hash table entries: 128 (order: 7, 512 bytes)
> [    0.000116] Console: colour dummy device 80x25
> [    0.000285] Dentry cache hash table entries: 4096 (order: 2, 16384 
> bytes)
> [    0.000506] Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
> [    0.004931] Memory: 26168k available (1740k kernel code, 576k data, 
> 104k init, 0k highmem)
> [    0.096364] Mount-cache hash table entries: 512
> 
> few more messages, and then
> 
> [    2.218059] RAMDISK: Compressed image found at block 0
> [    3.708864] VFS: Mounted root (ext2 filesystem).
> [    3.716225] Freeing unused kernel memory
>                                           [    3.736691] Failed to 
> execute /sbin/init.  Attempting defaults...
> [    3.748073] Kernel panic - not syncing: No init found.  Try passing 
> init= option to kernel.
> [    3.772040] Rebooting in 180 seconds..[  183.487314]   Signal: 8
> 
> 
> [  183.487322]   Code:   0
> [  183.487329]   Addr:   c0010540
> [  183.488000] Oops: Exception in kernel mode, sig: 8 [#1]
> [  183.488000] NIP: c0010540 LR: 00029030 CTR: c0246cec
> [  183.488000] REGS: c1c17dd0 TRAP: 2007e90   Not tainted  (2.6.25-xlnx)
> [  183.488000] MSR: 00000000 <>  CR: c022e764  XER: c024c0e8
> [  183.488000] TASK = c1c14850[1] 'init' THREAD: c1c16000
> [  183.488000] GPR00: 00000000 00000000 c0240000 c0246cec 00000000 
> 00000000 c0240000 c0246cec
> [  183.488000] GPR08: c0250000 0002bf20 c022e764 c0250000 c1c17e80 
> c0018e44 c1c14850 00000000
> [  183.488000] GPR16: 0000002a b8a199a2 0000002a b87fa729 c000bc58 
> b8a199a2 b873dc16 0000002a
> [  183.488000] GPR24: b87fa729 c0018e44 c022e764 000000b4 c1c17e70 
> 00029030 00000000 00000000
> [  183.488000] NIP [c0010540] cpu_clock+0x44/0x6c
> [  183.488000] LR [00029030] 0x29030
> [  183.488000] Call Trace:
> [  183.488000] [c1c17ca0] [c0008ad8] show_stack+0x58/0x180 (unreliable)
> [  183.488000] [c1c17cd0] [c0008dec] show_regs+0x1e0/0x2cc
> [  183.488000] [c1c17d00] [c00031d0] die+0x6c/0x88
> [  183.488000] [c1c17d20] [c000323c] _exception+0x50/0xe0
> [  183.488000] [c1c17dc0] [c0002d90] ret_from_except_full+0x0/0x4c
> [  183.488000] Instruction dump:
> [  183.488000] XXXXXXXX XXXXXXXX XXXXXXXX 38800000 XXXXXXXX XXXXXXXX 
> XXXXXXXX 7c000124
> [  183.488000] XXXXXXXX XXXXXXXX XXXXXXXX 4bfffef1 XXXXXXXX XXXXXXXX 
> XXXXXXXX 7d234b78
> [  183.488000] Kernel panic - not syncing: Attempted to kill init!
>      
> --I was doubtful  about busybox version used in RAMDISK provided at git 
> site. So I compiled my own busybox-1.10.3 with my cross compiler tool 
> chain still I am facing the same problem. Can anybody guide me.
> 
The problem is that the kernel can't find the init program. Check out 
it, does it exist? You can use init= kernel option to specify a new 
position other than the default one, if it's in a specific folder.

-- 
Marco Stornelli
Embedded Software Engineer
CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni
http://www.coritel.it

marco.stornelli@coritel.it
+39 06 72582838