Can not find kernel debug symbol

[xyyyaxl]

I have met a lock up issue with my realtime application, I have generated kdump for debugging, but I can not found vmlinux.

my kernel version: root# uname -a Linux 5.15.0-1051-realtime #57-Ubuntu SMP PREEMPT_RT Thu Nov 2 15:58:21 UTC 2023 x86_64 x86_64 x8664 GNU/Linux

source lists: root# cat ubuntu.list deb https://esm.ubuntu.com/realtime/ubuntu jammy main deb-src https://esm.ubuntu.com/realtime/ubuntu jammy main d# cat ddebs.list deb http://ddebs.ubuntu.com/ jammy main restricted universe multiverse deb http://ddebs.ubuntu.com/ jammy-security main restricted universe multiverse deb http://ddebs.ubuntu.com/ jammy-updates main restricted universe multiverse deb http://ddebs.ubuntu.com/ jammy-proposed main restricted universe multiverse

Can not found realtime kernel dbysym root# apt search dbgsym |grep 1051 WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

linux-image-5.15.0-1051-aws-dbgsym/jammy-updates 5.15.0-1051.56 amd64 linux-image-5.15.0-1051-azure-dbgsym/jammy-updates 5.15.0-1051.59 amd64 linux-image-5.15.0-1051-azure-fde-dbgsym/jammy-updates 5.15.0-1051.59.1 amd64 linux-image-5.15.0-1051-gcp-dbgsym/jammy-updates,jammy-proposed 5.15.0-1051.59 amd64 linux-image-5.15.0-1051-gke-dbgsym/jammy-updates 5.15.0-1051.56 amd64 linux-image-5.15.0-1051-intel-iotg-dbgsym/jammy-updates 5.15.0-1051.57 amd64 linux-image-5.15.0-1051-kvm-dbgsym/jammy-updates 5.15.0-1051.56 amd64 linux-image-5.15.0-1051-oracle-dbgsym/jammy-updates 5.15.0-1051.57 amd64 linux-image-unsigned-5.15.0-1051-aws-dbgsym/jammy-updates 5.15.0-1051.56 amd64 linux-image-unsigned-5.15.0-1051-azure-dbgsym/jammy-updates 5.15.0-1051.59 amd64 linux-image-unsigned-5.15.0-1051-azure-fde-dbgsym/jammy-updates 5.15.0-1051.59.1 amd64 linux-image-unsigned-5.15.0-1051-gcp-dbgsym/jammy-updates,jammy-proposed 5.15.0-1051.59 amd64 linux-image-unsigned-5.15.0-1051-gke-dbgsym/jammy-updates 5.15.0-1051.56 amd64 linux-image-unsigned-5.15.0-1051-intel-iotg-dbgsym/jammy-updates 5.15.0-1051.57 amd64 linux-image-unsigned-5.15.0-1051-kvm-dbgsym/jammy-updates 5.15.0-1051.56 amd64 linux-image-unsigned-5.15.0-1051-oracle-dbgsym/jammy-updates 5.15.0-1051.57 amd64

Do I have to add extra repos or ubuntu does not provide it at all? Please help me out, many thanks!

[khbecker]

Thanks for letting us know. I'll look into how we can provide debug symbols for the realtime kernel.

[xyyyaxl]

Thank you, Khbecker! Is there any updates?

[khbecker]

We don't currently have a solution for providing debug symbols for the realtime kernel, but I'll continue investigating how we could provide that in the future.