kernel panic during pxe boot on DL360 gen9

[Jason Hobbs]

A machine in our test lab kernel panic'd during PXE boot from MAAS.

It was running 4.15.0-46-generic #49-Ubuntu

I've attached a screenshot of the call trace.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1820287

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Jason Hobbs (jason-hobbs)]

I can't get logs from the system because it's kernel panic'd.

[Kai-Heng Feng (kaihengfeng)]

Would it be possible to get earlier trace?

[Jason Hobbs (jason-hobbs)]

This happens only sporadically. If it happens, is there some keyboard
sequence I can use to dump more information, or is the system totally
frozen at this point?

Jason

On Sat, Mar 16, 2019 at 11:35 AM Kai-Heng Feng <email address hidden>
wrote:

> Would it be possible to get earlier trace?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1820287
>
> Title:
> kernel panic during pxe boot on DL360 gen9
>
> Status in linux package in Ubuntu:
> Confirmed
>
> Bug description:
> A machine in our test lab kernel panic'd during PXE boot from MAAS.
>
> It was running 4.15.0-46-generic #49-Ubuntu
>
> I've attached a screenshot of the call trace.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820287/+subscriptions
>

[Kai-Heng Feng (kaihengfeng)]

If it's bare metal, the only way I know of is to use serial port.