[U-Boot] Uncompress error with LZO

[Tom Rini]

On Thu, Oct 18, 2012 at 10:21:32AM -0700, Tom Rini wrote:
> On Thu, Oct 18, 2012 at 02:24:20PM +0200, Matthias Wei?er wrote:
> > Hi
> > 
> > I get some misterious errors from time to time when decompressing an
> > LZO compressed image. The output is as follows
> > 
> > zmx25> bootm 0x82000000
> > ## Booting kernel from Legacy Image at 82000000 ...
> >    Image Name:   zmx25-gfx ifs
> >    Image Type:   ARM QNX Kernel Image (lzo compressed)
> >    Data Size:    8181868 Bytes = 7.8 MiB
> >    Load Address: 80000000
> >    Entry Point:  80000000
> >    Verifying Checksum ... OK
> >    Uncompressing Kernel Image ... LZO: uncompress or overwrite error
> > -5 - must RESET board to recover
> > resetting ...
> > 
> > RAM is from 0x80000000 to 0x83ffffff. The image was transfered using
> > TFTP and has an uncompressed size of about 20MB. If I change
> > something in the image so that the compressed data is different it
> > works. If an image is "broken" it is always broken so the behavior
> > is reproducable. I compress the image under windows using:
> 
> So you're saying that changing the source image results in good, or bad,
> behavior correct?  Can you try taking a bad source image and using lzop
> on Linux instead?

There is one other possibility here which is that our lzop_decompress
function and the kernel's lib/decompress_unlzo.c have diverged a bit and
we could have a bug there.

-- 
Tom
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