Is Jetson AGX Xavier support kdump？

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

Hi everyone,
We want to get the relevant kernel prints during a kernel panic. Serial and kdump seem to be a good idea. But the customer site is not conveniently connected to the serial port.

We use Jetson AGX Xavier with L4T version R35.6.0 (Linux Kernel 5.10, Ubuntu 20.04).
We are wondering if the AGX Xavier supports kdump?
If it doesn’t support it, when kernel panic, how do we get the crash information at that moment?
Currently through our test situation, when kernel panic, /var/log/kern.log is not able to record the information at the moment of crash.

3

Suppose below command should be able get the kernel message.

sudo dmesg
5

Thank you for your reply.
Due to being at a customer site, it is not possible for us to hang out at dmesg all the time.
We would like to know if the kdump tool can be used on AGX?
Or, is there a similar tool for kernel dump available?

6

I don’t have experience for the kdump.
Maybe you can check below to try it.

https://ubuntu.com/server/docs/kernel-crash-dump

8

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