linux-kernel - Re: "x86/boot/compressed/64: Prepare trampoline memory" breaks boot on Zotac CI-321

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Date:   Mon, 5 Mar 2018 19:57:06 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     "Kirill A. Shutemov" <kirill@...temov.name>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Dexuan-Linux Cui <dexuan.linux@...il.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        linux-mm@...ck.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Dexuan Cui <decui@...rosoft.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: "x86/boot/compressed/64: Prepare trampoline memory" breaks boot
 on Zotac CI-321

Am 05.03.2018 um 09:19 schrieb Kirill A. Shutemov:
> On Sat, Mar 03, 2018 at 12:46:28PM +0100, Heiner Kallweit wrote:
>> Am 03.03.2018 um 11:02 schrieb Ingo Molnar:
>>>
>>> * Heiner Kallweit <hkallweit1@...il.com> wrote:
>>>
>>>> Am 03.03.2018 um 00:50 schrieb Dexuan-Linux Cui:
>>>>> On Fri, Mar 2, 2018 at 12:57 PM, Heiner Kallweit <hkallweit1@...il.com <mailto:hkallweit1@...il.com>> wrote:
>>>>>
>>>>>     Recently my Mini PC Zotac CI-321 started to reboot immediately before
>>>>>     anything was written to the console.
>>>>>
>>>>>     Bisecting lead to b91993a87aff "x86/boot/compressed/64: Prepare
>>>>>     trampoline memory" being the change breaking boot.
>>>>>
>>>>>     If you need any more information, please let me know.
>>>>>
>>>>>     Rgds, Heiner
>>>>>
>>>>>
>>>>> This may fix the issue: https://lkml.org/lkml/2018/2/13/668
>>>>>
>>>>> Kirill posted a v2 patchset 3 days ago and I suppose the patchset should include the fix.
>>>>>
>>>> Thanks for the link. I bisected based on the latest next kernel including
>>>> v2 of the patchset (IOW - the potential fix is included already).
>>>
>>> Are you sure? b91993a87aff is the old patch-set - which I just removed from -next 
>>> and which should thus be gone in the Monday iteration of -next.
>>>
>>> I have not merged v2 in -tip yet, did it get applied via some other tree?
>>>
>>> Thanks,
>>>
>>> 	Ingo
>>>
>> I wanted to apply the fix mentioned in the link but found that the statement was movq already.
>> Therefore my (most likely false) understanding that it's v2.
>> I'll re-test once v2 is out and let you know.
> 
> movq fix is unrelated to the problem.
> 
> Please check if current linux-next plus this patchset causes a problem for
> you:
> 
> http://lkml.kernel.org/r/20180227154217.69347-1-kirill.shutemov@linux.intel.com
> 

linux-next from today boots fine with the patchset applied.

Rgds, Heiner