Bug#815125: Boot failure with Debian linux 4.4.2 package

Hi Ben,

- Does the affected system boot using the BIOS boot protocol
(including CSM) or UEFI boot protocol?

I have grub-efi-amd64 installed so I believe I am using UEFI.

- If you boot with the added kernel parameter "earlyprintk=vga" or
"earlyprintk=serial" (and without "quiet"), do any boot messages
appear before the hang/reboot? PLease send them (a photo is fine).

After adding earlyprintk=efi,keep in the attached photo you can see error about ACPI

- If it boots with UEFI, does the kernel parameter "efi=noruntime"
work around the problem?

Yes that fixes the problem.

- If you haven't already reported this, does the Linux 4.5-rc4 package
from experimental have the same problem?

I am using 4.5.0-rc4-amd64 from experimental at the moment as that boots without issues.

Only 4.4.0 seems to be affected.

> This test version is now available at
> https://people.debian.org/~benh/packages/unstable/

> Please report back whether this does or doesn't fix the problem for
> you.

I installed 4.4.2-3~a.test and it replaced previous 4.4.x package, but system is not booting either.

Let me know if you need anything.

/Mateusz

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