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

From: Michael Guntsche
Date: Mon Dec 21 2009 - 15:48:21 EST

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.

z_output_len = 3550876

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

Kind regards,
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at