linux-kernel - Re: [PATCH 4.4 00/37] 4.4.110-stable review

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Date:   Thu, 4 Jan 2018 21:16:10 +0100 (CET)
From:   Thomas Voegtle <tv@...96.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
cc:     Thomas Voegtle <tv@...96.de>, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuahkh@....samsung.com, patches@...nelci.org,
        ben.hutchings@...ethink.co.uk, lkft-triage@...ts.linaro.org,
        stable@...r.kernel.org
Subject: Re: [PATCH 4.4 00/37] 4.4.110-stable review

On Thu, 4 Jan 2018, Greg Kroah-Hartman wrote:

> On Thu, Jan 04, 2018 at 08:38:23PM +0100, Thomas Voegtle wrote:
>>
>> When I start 4.4.110-rc1 on a virtual machine (qemu) init throws a
>> segfault and the kernel panics (attempted to kill init).
>> The VM host is a Haswell system.
>>
>> The same kernel binary boots fine on a (other) Haswell system.
>>
>> I tried:
>>
>> 4.4.110-rc1     broken
>> 4.4.109         ok
>> 4.9.75-rc1      ok
>
> Does 4.15-rc6 also work ok?

Yes. Slightly different kernel config, but it boots.

>> All systems are OpenSuSE 42.3 64bit.
>>
>> qemu is started only with:
>> qemu-system-x86_64 -m 2048 -enable-kvm  -drive
>> file=tvsuse,format=raw,if=none,id=virtdisk0 -device
>> virtio-blk-pci,scsi=off,drive=virtdisk0
>>
>> Am I the only one who sees this? Has anyone booted that kernel on qemu?
>
> Any chance we can see the panic?

Attached a screenshot.
Is that useful? Are there some debug options I can add?
Download attachment "sc1.png" of type "image/png" (44846 bytes)