Guru meditations with AOS 503 (eCS) as guest

Discussions about using non Windows and Linux guests such as FreeBSD, DOS, OS/2, OpenBSD, etc.
massimo-ecs
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Joined: 25. Feb 2020, 22:48

Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

Hi all,

virtual box 6.1.34 r150636 (Qt5.6.2)
host OS WIndows server 2019 Standard edition 64 bit ITA 1809 build 17763.3046
HW: Supermicro X8SIA-F Xeon X3440 4 cores 2,53Ghz, 24GB ram, Samsung pro SSD (raid1)
4 guest VM running 2 eCS2.2b with no guru meditations

1 guest VM AOS 503 2 cores - 2,5Gb ram this one suffer often the GURU meditation issue (chipset: PIIX3, I/O APIC enabled, Old generation with nested virtualization ON, 2 Nics, audio disabled)
the VM runs on a Samsung 980 pro 4th generation NVME storage on 16X PCI-express card
i tried to low down the VM's ram from 3,5GB to 2,5GB, but this don't help

today the GURU meditation showed at about 9:43 AM, but i don't find in the log that time stamp
please help, i don't know which kind of logs or other info do you need for the support

thanks

massimo
scottgus1
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

Please explain what "AOS 503 (eCS)" means. I don't recognize it, and a web-search takes me to Amazon AWS.

Also, Start the VM from full normal shutdown, not save-state. Run until you see the problem happen, then shut down the VM from within the VM's OS if possible. If not possible, close the Virtualbox window for the VM with the Power Off option set.

Right-click the VM in the main Virtualbox window's VM list, choose Show Log. Save the far left tab's log, zip it, and post the zip file, using the forum's Upload Attachment tab.
massimo-ecs
Posts: 29
Joined: 25. Feb 2020, 22:48

Re: Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

AOS stand for "Arca Noae Os" (v.5.0.3) is a modern distro of OS/2-eComStation https://www.arcanoae.com/
(in Virtual box in the OS types is shown as "ArcaOS")

About VM ON & OFF i only use these commands:

@vboxmanage startvm "myvm" --type headless
@vboxmanage controlvm "myvm" poweroff

Log in attachment

thanks you

massimo
Attachments
log-2022-07-19-18-39-52.zip
(16.44 KiB) Downloaded 38 times
scottgus1
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Posts: 20965
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

Thanks for ID'ing the OS! The log doesn't show a guru meditation. Did one happen? If not, please send a log after one happens. Make sure all of the VM's windows are closed first.
massimo-ecs wrote:@vboxmanage controlvm "myvm" poweroff
This kind of shutoff is like cutting the power on a computer. DOS can handle that. Many modern OS's can't, and will get corrupted. How does Arca Noae handle a power cut?
massimo-ecs
Posts: 29
Joined: 25. Feb 2020, 22:48

Re: Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

"The log doesn't show a guru meditation. Did one happen? If not, please send a log after one happens. Make sure all of the VM's windows are closed first."

Yes, it happened some hour before, but i don't understand the timestamps of virtual box..

about "VM's" windows are closed first, what do you mean?
I took the log with the VM running



"This kind of shutoff is like cutting the power on a computer."
i use it only when guru meditation occurs
i've no way, the other way should be to close the other 2 VMs and reboot the host..
scottgus1
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

massimo-ecs wrote:about "VM's" windows are closed first, what do you mean?
Close the guru meditation warning box and the VM window, then take the far left log. Other VMs can stay running.
massimo-ecs
Posts: 29
Joined: 25. Feb 2020, 22:48

Re: Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

what i see is this in the picture
i run the 3 VMs headless, i've no window to close


massimo
Attachments
guru.jpg
guru.jpg (41.75 KiB) Viewed 17543 times
scottgus1
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

OK, if you're running headless and the VM guru-meditates, then it is dead, and the "vboxmanage controlvm "myvm" poweroff" command should work to fully shut off the VM so a log can be taken.

Otherwise, try running the VM normal instead of headless, then wait for the guru to meditate. Then you can close the window and take the log.
massimo-ecs
Posts: 29
Joined: 25. Feb 2020, 22:48

Re: Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

here you are
let me know if the log is good

thanks

massimo
Attachments
VBox.log.zip
(145.6 KiB) Downloaded 38 times
scottgus1
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

This log does show a guru meditation, good.

The log has some 26 different reboots of the VM OS over almost 108 hours, The guru meditates at 107:47:38.153674, some 50 minutes after the last reboot. The error that the guru meditates about, VERR_VMX_UNABLE_TO_START_VM, may be related to an unexpected failure to continue to access the host's hardware virtualization, VT-x.

Does your Windows host OS have 3rd-party AV or security software on it?
massimo-ecs
Posts: 29
Joined: 25. Feb 2020, 22:48

Re: Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

NO, it use the embedded MS defender at the moment
but i plan soon or later to use Kaspersky select

One question, is there a way to understand the time stamp that Vbox's logs use?
e.g. some sort of converter
scottgus1
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

MS Defender should be really good AV. I and the forum gurus use it on our 10 and 11 hosts. It doesn't fight the OS or Virtualbox, like 3rd-party AV does.

VirtualBox's timestamps are hours:minutes:seconds.microseconds. They count starting from 0, from the moment the VM starts. Virtualbox also includes in the log's second line the host's system time in UTC (meaning what time it is on the 0th longitude line), including daylight savings time, which you need to translate according to your timezone and daylight savings time status to get the system time when the VM started. Then add the timestamp time to determine the system time of a logged event.

(Virtualbox has a setting to also include the computer's system time with the start-from-0 time on each log line, see viewtopic.php?f=6&t=99559#p482996. However, the command has to be run in the VM's command line every time it's started, so no using the "start" button in the main Virtualbox window. And this added time is also in UTC, needing time zone & daylight savings time translation.)
fth0
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by fth0 »

scottgus1 wrote:VirtualBox's timestamps [...]
Good explanation! :)

Now apply this yourself to the log file of the OP, to estimate the necessary longitude to get up to July 2022: :lol:
VBox.log file wrote:
00:00:00.512569 VirtualBox VM 6.1.2 r135662 win.amd64 (Jan 15 2020 14:07:18) release log
00:00:00.512574 Log opened 2022-03-18T14:36:44.092031900Z
[...]
107:47:38.153857 Changing the VM state from 'RUNNING' to 'GURU_MEDITATION'
massimo-ecs wrote:let me know if the log is good
You'll probably have guessed the answer by now. ;) If not, also consider the VirtualBox version.
scottgus1
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Re: Guru meditations with AOS 503 (eCS) as guest

Post by scottgus1 »

He he he he..... I'm so far out of longitude, I must be somewhere around Saturn by now. Good eye, fth0!

107 hours of running - back in March, 4 months ago. :lol:

Mmmm, yeah. OK, Massimo, disregard my analysis of the log, it's too old data.

Please upgrade Virtualbox to the latest and greatest, now 6.1.36. Run your VM. When (if?) it guru-meditates, close its windows and post the 'vbox.log'.
massimo-ecs
Posts: 29
Joined: 25. Feb 2020, 22:48

Re: Guru meditations with AOS 503 (eCS) as guest

Post by massimo-ecs »

fth0 wrote:
scottgus1 wrote:VirtualBox's timestamps [...]
Good explanation! :)

Now apply this yourself to the log file of the OP, to estimate the necessary longitude to get up to July 2022: :lol:
VBox.log file wrote:
00:00:00.512569 VirtualBox VM 6.1.2 r135662 win.amd64 (Jan 15 2020 14:07:18) release log
00:00:00.512574 Log opened 2022-03-18T14:36:44.092031900Z
[...]
107:47:38.153857 Changing the VM state from 'RUNNING' to 'GURU_MEDITATION'
massimo-ecs wrote:let me know if the log is good
You'll probably have guessed the answer by now. ;) If not, also consider the VirtualBox version.
hi,

no, i was running VirtualBox-6.1.34a-150636-Win and guru meditation still happens also with this version sometimes even 2 time per day
now i've upgraded to VirtualBox-6.1.36-152435-Win
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