Re: Router VM fails to boot with kernel panic when overprovisioinig is > 1

[Jithin Raju]

Hello Sanjay,

What is the hypervisor, version you are using? If its KVM check whether the 
memory ballooning configuration is applied correctly and working as expected 
since you are using over-provisioning.

You could run ‘virsh dumpxml vm-name’ on the KVM as Vivek mentioned and look at 
the below values:


1048576

  524288

You could look at the same using ‘virsh dominfo vm-name’ as well.  I am not 
sure about the status of the ballooning configuration, hence please check that 
in the XML output. [1]

https://www.linux-kvm.org/page/Projects/auto-ballooning


-Jithin

From: Vivek Kumar 
Date: Thursday, 4 May 2023 at 2:09 PM
To: users@cloudstack.apache.org 
Cc: d...@cloudstack.apache.org 
Subject: Re: Router VM fails to boot with kernel panic when overprovisioinig is 
> 1
Hello Sanjay,

When you are doing over provisioning specially for memory, just go to the KVM 
node and see the output of dumpxml, you will see the memory assigned to the KVM 
guest divided by over provisioning factor, which means no suitable memory for 
OS to run ( if we use default offering ) ,

So try to increase the RAM in default offering or create a larger offering for 
VR.



Vivek Kumar
Sr. Manager - Cloud & DevOps
TechOps | Indiqus Technologies

vivek.ku...@indiqus.com <mailto:vivek.ku...@indiqus.com>
www.indiqus.com<http://www.indiqus.com> <https://www.indiqus.com/>





 

> On 02-May-2023, at 1:12 PM, Sanjay Kumar  wrote:
>
> Hi All,
>
> When overprovisioning factors are > 1, the virtual router vm  is not able
> to boot and ends up in a kernel panic.
>
> ACS_Version: 4.18.0
> Storage: NFS
>
> Any help would be really appreciated. Thank you!
>
> With Regards,
> S Kumar


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Re: Router VM fails to boot with kernel panic when overprovisioinig is > 1

[Vivek Kumar]

Hello Sanjay,

When you are doing over provisioning specially for memory, just go to the KVM 
node and see the output of dumpxml, you will see the memory assigned to the KVM 
guest divided by over provisioning factor, which means no suitable memory for 
OS to run ( if we use default offering ) , 

So try to increase the RAM in default offering or create a larger offering for 
VR.



Vivek Kumar
Sr. Manager - Cloud & DevOps
TechOps | Indiqus Technologies

vivek.ku...@indiqus.com 
www.indiqus.com 




> On 02-May-2023, at 1:12 PM, Sanjay Kumar  wrote:
> 
> Hi All,
> 
> When overprovisioning factors are > 1, the virtual router vm  is not able
> to boot and ends up in a kernel panic.
> 
> ACS_Version: 4.18.0
> Storage: NFS
> 
> Any help would be really appreciated. Thank you!
> 
> With Regards,
> S Kumar


-- 
This message is intended only for the use of the individual or entity to 
which it is addressed and may contain confidential and/or privileged 
information. If you are not the intended recipient, please delete the 
original message and any copy of it from your computer system. You are 
hereby notified that any dissemination, distribution or copying of this 
communication is strictly prohibited unless proper authorization has been 
obtained for such action. If you have received this communication in error, 
please notify the sender immediately. Although IndiQus attempts to sweep 
e-mail and attachments for viruses, it does not guarantee that both are 
virus-free and accepts no liability for any damage sustained as a result of 
viruses.

Re: Router VM fails to boot with kernel panic when overprovisioinig is > 1

[Jithin Raju]

Hi Sanjay,

This appears like a known issue: 
https://github.com/apache/cloudstack/issues/7430


-Jithin

From: Sanjay Kumar 
Date: Tuesday, 2 May 2023 at 1:12 PM
To: users@cloudstack.apache.org , 
d...@cloudstack.apache.org 
Subject: Router VM fails to boot with kernel panic when overprovisioinig is > 1
Hi All,

When overprovisioning factors are > 1, the virtual router vm  is not able
to boot and ends up in a kernel panic.

ACS_Version: 4.18.0
Storage: NFS

Any help would be really appreciated. Thank you!

With Regards,
S Kumar

 

Router VM fails to boot with kernel panic when overprovisioinig is > 1

[Sanjay Kumar]

Hi All,

When overprovisioning factors are > 1, the virtual router vm  is not able
to boot and ends up in a kernel panic.

ACS_Version: 4.18.0
Storage: NFS

Any help would be really appreciated. Thank you!

With Regards,
S Kumar