Re: [PATCH] kbuild: correct size calculation of bzImgae / fix x86boot

[Michael Guntsche]

On 2009.12.21 22:53:54 , Michael Tokarev wrote:
> Michael Guntsche wrote:
> > Just a quick update from my side. I tried the patch from Andreas and build a kernel
> > with dash as defaulti shell. I was able to boot the resulting kernel image
> > without any problems.
> 
> That's not a good test case.  Because even with bogus data the kernel might
> boot: for example, allocating alot more memory for the unpacking than necessary -
> it does not crash but the data is still bogus.
> 
> The better (and much faster) check is to verify that the z_output_len value
> in arch/x86/boot/compressed/piggy.S matches the size of
> arch/x86/boot/compressed/vmlinuz.bin.

Looks ok for me.

piggy.S:
z_output_len = 3550876

ls -la vmlinux.bin:
-rwxr-xr-x 1 root root 3550876 Dec 21 17:21 vmlinux.bin


Kind regards,
Michael
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