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Linux x64 VM unreachable after AHCI resets with VBox 6.0.6 on Linux x64 Host
Posted: 18. Apr 2019, 18:13
by mdecker77
I am using latest VirtualBox 6.0.6 on physical Linux x86-64 Oracle Linux 7 Update 6 Host. I have problems with one guest VM, running also Linux x86-64. The VM freezes almost every day. It is then unreachable via IP and hangs when connecting via Console "Show". In VBox.log, we see AHCI Resets.
How can I troubleshoot this issue in more detail? What "debugvm" could be of use in this case?
Regards,
Martin
Re: Linux x64 VM unreachable after AHCI resets with VBox 6.0.6 on Linux x64 Host
Posted: 18. Apr 2019, 18:21
by socratis
mdecker77 wrote:In VBox.log, we see AHCI Resets.
Yeah... we need to see that VBox.log too. Does it have to do anything with an older post of yours, "
Guest VM Kernel Panic and"?
We need to see a
complete VBox.log, from a
complete VM run, where the problem occurs:
- Start the VM from cold-boot (not from a paused or saved state) / Observe problem / Shutdown the VM (force close it if you have to).
- With the VM completely shut down (not paused or saved), right-click on the VM in the VirtualBox Manager and select "Show Log".
- Save only the first "VBox.log", ZIP it and attach it to your response. See the "Upload attachment" tab below the reply form.
Re: Linux x64 VM unreachable after AHCI resets with VBox 6.0.6 on Linux x64 Host
Posted: 21. Apr 2019, 20:38
by mdecker77
I have attached vbox.log as well as serial console from the VM.
Re: Linux x64 VM unreachable after AHCI resets with VBox 6.0.6 on Linux x64 Host
Posted: 22. Apr 2019, 20:43
by mdecker77
I have reduced number of LUNs from 5 to 2, enabled Host I/O Cache and set
VBoxManage setextradata "host" "VBoxInternal/Devices/ahci/0/LUN#0/Config/IgnoreFlush" 0
VBoxManage setextradata "host" "VBoxInternal/Devices/ahci/0/LUN#1/Config/IgnoreFlush" 0
VBoxManage setextradata host "VBoxInternal/Devices/ahci/0/LUN#0/Config/FlushInterval" 10000000
VBoxManage setextradata host "VBoxInternal/Devices/ahci/0/LUN#1/Config/FlushInterval" 10000000
Lets see whether this is sufficient.
Re: Linux x64 VM unreachable after AHCI resets with VBox 6.0.6 on Linux x64 Host
Posted: 25. Apr 2019, 09:24
by mdecker77
After the modifications, the VM guest now looks stable. No more crashes.