Ubuntu
kdump-tools package

  1. Mantic (23.10)
  2. Bug #1908090
  3. Comment #13

Comment 13 for bug 1908090

Revision history for this message
Heather Lemon (hypothetical-lemon) wrote : Re: Default 192MB crashkernel reservation is never enough (kdump fails on 20.04)

Hello,

I was able to generate a crash kernel dump with crashkernel=512M-:192M and 1GB of memory.
This was with libvirt/kvm not lxd, i'm not sure if you can use containers to generate crash dumps as I got an error, but following the instructions from here: https://ubuntu.com/server/docs/kernel-crash-dump.

/var/crash/202310271409/
-rw------- 1 root whoopsie 57K Oct 27 14:09 dmesg.202310271409
-rw------- 1 root whoopsie 37M Oct 27 14:09 dump.202310271409

I will continue testing vm memory size to crashkernel= parameters.

Thanks,
Heather Lemon