On 01.10.2016 05:52, Yinghai Lu wrote:

On Tue, Sep 27, 2016 at 2:28 AM, Stefan Roese sr@denx.de wrote:

...

Hi!

I just tried to boot a recent Linux kernel on a BayTrail based x86 board and noticed that booting Linux kernel version v4.7+ does not work. git bisecting leads to this kernel commit changing the compressed image format:

974f221c: x86/boot: Move compressed kernel to the end of the decompression buffer

Before digging deeper into this, I would like to check if someone else has been hit by this problem and perhaps already has a solution / fix for U-Boots zimage command. Or a quick idea how to solve this.

could be u-boot does not copy whole setup header that include _init_size.

in kexec the code like:

    /* only copy setup_header */
    setup_header_size = kernel[0x201] + 0x202 - 0x1f1;
    if (setup_header_size > 0x7f)
            setup_header_size = 0x7f;
    memcpy((unsigned char *)real_mode + 0x1f1, kernel + 0x1f1,
             setup_header_size);

Thanks for the notice. I've already sent this patch to the U-Boot list to fix this issue:

https://patchwork.ozlabs.org/patch/676896/

Thanks, Stefan