<div dir="auto">I just made the huge mistake of hibernating and resuming, I'm going trough the process of rescue and all, thankfully I had a 2016 cd in the drive. I'll read up once the sheer panic settles. <div dir="auto"><br></div><div dir="auto">-Michael</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jan 26, 2022, 21:22 John Paul Adrian Glaubitz <<a href="mailto:glaubitz@physik.fu-berlin.de">glaubitz@physik.fu-berlin.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Michael!<br>
<br>
On 1/13/22 01:17, John Paul Adrian Glaubitz wrote:<br>
> On 1/9/22 23:17, John Paul Adrian Glaubitz wrote:<br>
>> On 1/7/22 12:20, John Paul Adrian Glaubitz wrote:<br>
>>>> Can you separately test with (on the host):<br>
>>>><br>
>>>> # echo 0 > /sys/module/kvm_hv/parameters/dynamic_mt_modes<br>
>>><br>
>>> I'm trying to turn off "dynamic_mt_modes" first and see if that makes any difference.<br>
>>><br>
>>> I will report back.<br>
>><br>
>> So far the machine is running stable now and the VM built gcc-9 without<br>
>> crashing the host. I will continue to monitor the machine and report back<br>
>> if it crashes, but it looks like this could be it.<br>
> <br>
> So, it seems that setting "dynamic_mt_modes" actually did the trick, the host is no longer<br>
> crashing. However, I have observed on two occasions now that the build VM is just suddenly<br>
> off as if someone has shut it down using the "force-off" option in the virt-manager user<br>
> interface.<br>
<br>
Just as a heads-up. Ever since I set<br>
<br>
echo 0 > /sys/module/kvm_hv/parameters/dynamic_mt_modes<br>
<br>
on the host machine, I never saw the crash again. So the issue seems to be related to the<br>
dynamic_mt_modes feature.<br>
<br>
Thanks,<br>
Adrian<br>
<br>
-- <br>
.''`. John Paul Adrian Glaubitz<br>
: :' : Debian Developer - <a href="mailto:glaubitz@debian.org" target="_blank" rel="noreferrer">glaubitz@debian.org</a><br>
`. `' Freie Universitaet Berlin - <a href="mailto:glaubitz@physik.fu-berlin.de" target="_blank" rel="noreferrer">glaubitz@physik.fu-berlin.de</a><br>
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913<br>
<br>
</blockquote></div>