[U-Boot] cuImage and multi image?

[Chen, Tiejun]

> -----Original Message-----
> From: Shawn Jin [mailto:shawnxjin at gmail.com] 
> Sent: Thursday, September 23, 2010 4:23 AM
> To: Chen, Tiejun
> Cc: Scott Wood; ppcdev; uboot
> Subject: Re: [U-Boot] cuImage and multi image?
> 
> >> I have a large ramdisk image. The size of the image itself 
> (i.e. the
> >> *.gz) is about 4MB. When the ramdisk was being decompressed
> >
> > Did you try to change link_address on the file, 
> arch/powerpc/boot/wrapper?
> 
> No. I don't have to. Right? The link_address is still 0x400000.

I means you can change link_address to other value according to the
Image size. Try set link_address='0x5000000'.

> 
> > Did you try boot the uImage and the ramdisk separately? For 
> example, you can boot this as the following command:
> > # bootm ${kernel_addr} ${ramdisk_addr} ${fdt_addr}
> 
> Mine is a cuImage. I'm pretty sure that my ramdisk is valid 
> when it's a separate image. I used "bootm <kernel_addr> 
> <ramdisk_addr>" to boot.
> 
> > Can you paste the whole log from the u-boot prompt?
> 
> In the previous run the ramdisk image was corrupted because 
> the single image was loaded at 0x800000. But the boot message 
> showed that the initrd image was at 0x0066c000-0x009ae825. So 
> it was over the 8MB area.
> 
> However after the load address was changed to 0x04000000 
> (64MB), the ramdisk still seemed corrupted but with different 
> error messages.

This should be the same reason, 'uncompression error'.

Cheers
Tiejun

> 
> => bootm
> ## Booting image at 04000000 ...
>    Image Name:   Linux-2.6.33.5
>    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>    Data Size:    4424922 Bytes =  4.2 MB
>    Load Address: 00400000
>    Entry Point:  00400554
>    Verifying Checksum ... OK
>    Uncompressing Kernel Image ... OK
> Memory <- <0x0 0x8000000> (128MB)
> ENET0: local-mac-address <- 00:09:9b:01:58:64 CPU 
> clock-frequency <- 0x7270e00 (120MHz) CPU timebase-frequency 
> <- 0x7270e0 (8MHz) CPU bus-frequency <- 0x3938700 (60MHz)
> 
> zImage starting: loaded at 0x00400000 (sp: 0x07d1cbd0) 
> Allocating 0x22a1e1 bytes for kernel ...
> gunzipping (0x00000000 <- 0x0040c000:0x0066b0ac)...done 
> 0x21c6c8 bytes Attached initrd image at 0x0066c000-0x009ae825 
> initrd head: 0x1f8b0808
> 
> Linux/PowerPC load: root=/dev/ram
> Finalizing device tree... flat tree at 0x9bb300 Using my870 
> machine description Linux version 2.6.33.5 (shawn at ubuntu) 
> (gcc version 4.2.2) #4 Tue Sep
> 21 09:23:51 PDT 2010
> Found initrd at 0xc066c000:0xc09ae825
> Zone PFN ranges:
>   DMA      0x00000000 -> 0x00008000
>   Normal   0x00008000 -> 0x00008000
> Movable zone start PFN for each node
> early_node_map[1] active PFN ranges
>     0: 0x00000000 -> 0x00008000
> MMU: Allocated 72 bytes of context maps for 16 contexts Built 
> 1 zonelists in Zone order, mobility grouping on.  Total 
> pages: 32512 Kernel command line: root=/dev/ram PID hash 
> table entries: 512 (order: -1, 2048 bytes) Dentry cache hash 
> table entries: 16384 (order: 4, 65536 bytes) Inode-cache hash 
> table entries: 8192 (order: 3, 32768 bytes)
> Memory: 124072k/131072k available (2080k kernel code, 6836k 
> reserved, 84k data, 52k bss, 104k init) Kernel virtual memory layout:
>   * 0xfffdf000..0xfffff000  : fixmap
>   * 0xfde00000..0xfe000000  : consistent mem
>   * 0xfddfa000..0xfde00000  : early ioremap
>   * 0xc9000000..0xfddfa000  : vmalloc & ioremap
> SLUB: Genslabs=12, HWalign=16, Order=0-3, MinObjects=0, 
> CPUs=1, Nodes=1 ....
> <snipped>
> ....
> RAMDISK: gzip image found at block 0
> uncompression error
> VFS: Mounted root (ext2 filesystem) readonly on device 1:0.
> Freeing unused kernel memory: 104k init
> EXT2-fs (ram0): error: ext2_check_page: bad entry in directory #336: :
> unaligned directory entry - offset=0, inode=74187384, rec_len=2081,
> name_len=126
> EXT2-fs (ram0): error: remounting filesystem read-only 
> attempt to access beyond end of device
> ram0: rw=0, want=156831968, limit=32768
> Buffer I/O error on device ram0, logical block 78415983 
> attempt to access beyond end of device
> ram0: rw=0, want=112233212, limit=32768
> Buffer I/O error on device ram0, logical block 56116605 
> attempt to access beyond end of device
> ram0: rw=0, want=6626681482, limit=32768 Buffer I/O error on 
> device ram0, logical block 3313340740 attempt to access 
> beyond end of device
> ram0: rw=0, want=184684282, limit=32768
> Buffer I/O error on device ram0, logical block 92342140 
> Kernel panic - not syncing: No init found.  Try passing init= 
> option to kernel.
> Call Trace:
> [c7821f30] [c0006cd8] show_stack+0x40/0x168 (unreliable) 
> [c7821f70] [c001cefc] panic+0x8c/0x178 [c7821fc0] [c00026d4] 
> init_post+0xe4/0xf4 [c7821fd0] [c01ee224] 
> kernel_init+0x108/0x130 [c7821ff0] [c000dcc0] 
> kernel_thread+0x4c/0x68 Rebooting in 180 seconds..
> 
> Thanks,
> -Shawn.
>