# Re: \[PATCH\] Revert "powerpc: Switch to relative jump labels"

- From: Michael Ellerman \<mpe@ellerman.id.au\>
- Date: 2021-05-28 23:40:21 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/05/9522940
- Thread: https://ratatoskr.run/linuxppc-dev/2021/05/9522902/t.md

```text
Roman Bolshakov [ref] writes:
> This reverts commit b0b3b2c78ec075cec4721986a95abbbac8c3da4f.
>
> Otherwise, direct kernel boot with initramfs no longer works in QEMU.
> It's broken in some bizarre way because a valid initramfs is not
> recognized anymore:
>
>   Found initrd at 0xc000000001f70000:0xc000000003d61d64
>   rootfs image is not initramfs (XZ-compressed data is corrupt); looks like an initrd
>
> The issue is observed on v5.13-rc3 if the kernel is built with
> defconfig, GCC 7.5.0 and GNU ld 2.32.0.

Are you able to try a different compiler?

I test booting qemu constantly, but I don't use GCC 7.5.

I assume your initramfs is compressed with XZ? How large is it
compressed?

And what qemu version are you using?

cheers

```