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.