Re: VirtualBox and HOST kernel-5.17.12 weirdness

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Hi,

On 6/15/22 07:01, Ian Laurie wrote:
> On 6/12/22 14:34, Sérgio Basto wrote:
>> On Sun, 2022-06-12 at 13:59 +1000, Ian Laurie wrote:
>>> On 6/12/22 11:20, Ian Laurie wrote:
>>>> On 6/12/22 09:46, Ian Laurie wrote:
>>>>> On 6/12/22 00:58, Hans de Goede wrote:
>>>>>> Hi,
>>>>>>
>>>>>> On 6/11/22 01:02, Alexander G. M. Smith wrote:
>>>>>>> On 2022-06-08 15:00, Alexander G. M. Smith wrote:
>>>>>>>> Ian Laurie wrote on Friday, 3 June 2022 at 11:17 p.m.:
>>>>>>>>> Is anyone else seeing crashes and other strange events in
>>>>>>>>> VirtualBox
>>>>>>>>> 6.1.34 (from RPMFusion) with Linux guests when the Linux
>>>>>>>>> host is
>>>>>>>>> running
>>>>>>>>> Fedora 36 with kernel-5.17.12?
>>>>>>>> [...]
>>>>>>>> The weird thing is that it works on other CPUs, an AMD
>>>>>>>> Athlon X2
>>>>>>>> and an Intel 10th generation i5-10500H.  Just my Ivy Bridge
>>>>>>>> Intel
>>>>>>>> i7-4820K has the problem.  I did try the kernel boot
>>>>>>>> parameter
>>>>>>>> mitigations=off, in case the Spectre or other workarounds
>>>>>>>> were
>>>>>>>> wrong for Ivy Bridge, but it still didn't work.
>>>>>>> One more data point.  It fails on an Intel i5-750 too.  Same
>>>>>>> broken
>>>>>>> data connections and failed checksums.
>>>>>>>
>>>>>>> My go-to test is to use "dnf clean" followed by "dnf upgrade"
>>>>>>> running as root in a console (thus no networking is between
>>>>>>> keyboard and computer - pipes often fail).  My server
>>>>>>> snapshot
>>>>>>> fails to get through the complete dnf upgrade on kernel
>>>>>>> 5.17.13,
>>>>>>> works fine if booting the host with the earlier kernel
>>>>>>> 5.17.11
>>>>>>> (using the GRUB boot menu to pick the older OS).
>>>>>>>
>>>>>>> So, should we report this to VirtualBox?  They seem like the
>>>>>>> most
>>>>>>> appropriate people.  Kernel people would be a possibility?
>>>>>>>
>>>>>>> Found a relevant bug report:
>>>>>>> https://www.virtualbox.org/ticket/20976
>>>>>>>
>>>>>>> And a forum discussion:
>>>>>>> https://forums.virtualbox.org/viewtopic.php?f=7&t=106071
>>>>>>>
>>>>>>> Though they don't know that it only happens on certain CPUs
>>>>>>> (or
>>>>>>> motherboards or ?).  I'll add some notes about that there.
>>>>>> Note the rpmfusion VirtualBox packages now include this fix:
>>>>>> https://build.opensuse.org/package/view_file/Virtualization/virtualbox/fixes_for_kernel_5.18.patch?expand=1
>>>>>>  
>>>>>>
>>>>>> See:
>>>>>> https://koji.rpmfusion.org/koji/buildinfo?buildID=22655
>>>>>>
>>>>>> Which is supposed to fix this.
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Hans
>>>>> I'm currently running this version, with the 5.18 fixes, but it's
>>>>> not
>>>>> working with kernels 5.17.12/13 or 14.  A person reporting
>>>>> success
>>>>> with 5.18.3 reported not having problems with the 5.17 kernels,
>>>>> so
>>>>> maybe there are multiple issues (has been suggested it may be
>>>>> CPU/chipset related).  I have not yet tried it on 5.18 but I
>>>>> certainly will today.
>>>>>
>>>>> Ian
>>>>>
>>>> If I understand Sérgio's comment #15 correctly, the 5.18 kernel
>>>> fixes
>>>> don't address the CPU issues possibly created by CVE-2022-1789
>>>> fixes,
>>>> so there is probably no point in me trying an early 5.18.  So the
>>>> CPU
>>>> issues are common to both later 5.17 and 5.18.  Sadly all my
>>>> hardware
>>>> here falls under the broken category:
>>>>
>>>> [1] ASUS G750JS 1 x Intel(R) Core(TM) i7-4700HQ CPU @ 2.40GHz
>>>> Intel Corporation 4th Gen Core Processor Integrated Graphics
>>>> Controller (rev 06)
>>>> NVIDIA Corporation GK104M [GeForce GTX 870M] (rev a1)
>>>> Fedora 36
>>>>
>>>> [2] Intel NUC i7 NUC11PAH 1 x 11th Gen Intel(R) Core(TM) i7-1165G7
>>>> @
>>>> 2.80GHz
>>>> Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] (rev 01)
>>>> Fedora 36
>>>>
>>> Since it was going to cost me nothing but time, I tested
>>> kernel-5.18.3-200.fc36.x86_64 with my existing
>>> VirtualBox-6.1.34-4.fc36.x86_64 (RPMFusion updates-testing) and to my
>>> astonishment it seems to be working.  On both platforms mentioned
>>> above.  So maybe my understanding about the CVE fixes was not
>>> correct.
>>> Or something got fixed between 5.18.2 and 5.18.3 ?  Anyway the 5.18.3
>>> Fedora kernel on Koji with the latest VirtualBox from RPMFusion still
>>> in
>>> testing seems to be working on 2 h/w platforms that were previously
>>> failing from 5.17.12.
>> thank you for the feedback , yes you understand me well, but I hadn't
>> made tests with kernel-5.18.x
>>
>> After read this thread this afternoon , I realize that I also have one
>> Intel(R) Core(TM), I have the i5-9300H CPU and I noticed have network
>> issues with  kernel-5.17.12.  so I downgrade the kernel kernel-5.17.9-
>> 200.fc35.x86_64 and I confirmed that I hadn't the issues with network.
>>
>> So I was also affected by kernel-5.17.12, but just had weird network
>> issues ...
>>
>> So now, I not sure anymore if we have 2 issues or if it all the same
>> i.e. kvm mitigations which was in first place on kernels 5.18, or even
>> if virtualbox kernel-5.18 patch is unrelated. The important for me is
>> kernel-5.18 patch for virtualbox don't have regressions .
>>
> Sérgio,
> 
> Now that 5.18.3 & 5.18.4 are working as VirtualBox hosts, we seem to have problems with 5.18.x as a guest.  For me, 5.18.x kernels are not seeing the network interface.  I am seeing this with 5.18.3 and 5.18.4 in the guest, regardless of the outer host.  In fact I am seeing this on both Linux and Windows 10 hosts.

This is due the e1000 nic driver accidentally being disabled in
the 5.18 kernels. This is fixed in 5.18.4-301 / 5.18.4-201 / 5.18.4-101

Regards,

Hans
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