Tested in dump file form in arm64; working.

arm64
-----

vm

	SERIES=noble
	ARCH=arm64
	DISK=${SERIES}_${ARCH}.qcow2

	wget https://cloud-images.ubuntu.com/$SERIES/current/${SERIES}-server-cloudimg-${ARCH}.img
	qemu-img create -F qcow2 -b ${SERIES}-server-cloudimg-${ARCH}.img -f qcow2 $DISK 8G

	sudo apt install -y qemu-system-arm qemu-efi

	dd if=/dev/zero of=flash1.img bs=1M count=64
	dd if=/dev/zero of=flash0.img bs=1M count=64
	dd if=/usr/share/qemu-efi/QEMU_EFI.fd of=flash0.img conv=notrunc

	qemu-system-aarch64 \
	-machine virt -cpu cortex-a57 \
	-pflash flash0.img -pflash flash1.img \
	\
	-smp cpus=2 -m 2048 \
	-nodefaults -no-user-config \
	-nographic -serial stdio \
	\
	-drive file=$DISK,if=none,id=drive0 \
	-device virtio-blk-device,drive=drive0 \
	\
	-drive file=test-cidata.iso,media=cdrom \
	\
	-netdev user,hostfwd=::22222-:22,id=net0 \
	-device virtio-net-device,netdev=net0

	$ ssh ubuntu@127.0.0.1 -p 22222

	$ lsb_release -cs
	No LSB modules are available.
	noble

	$ uname -m
	aarch64

	$ uname -rv
	6.6.0-14-generic #14-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 30 10:53:08 UTC 2023

kdump-tools

	sudo apt update && sudo apt install -y linux-crashdump # No, Yes
	sudo sed 's/crashkernel=[^" ]\+/crashkernel=512M/' -i /etc/default/grub.d/kdump-tools.cfg
	sudo update-grub && sudo reboot

	$ sudo dmesg | grep 'crashkernel reserved:'
	[    0.000000] crashkernel reserved: 0x0000000089800000 - 0x00000000a9800000 (512 MB)

	$ sudo kdump-config status
	current state   : ready to kdump

crashdump

	$ echo c | sudo tee /proc/sysrq-trigger

	$ find /var/crash
	/var/crash
	/var/crash/kexec_cmd
	/var/crash/202401082101
	/var/crash/202401082101/dmesg.202401082101
	/var/crash/202401082101/dump.202401082101
	/var/crash/kdump_lock
	/var/crash/linux-image-6.6.0-14-generic-202401082101.crash

debug symbols

	dpkg -l | awk '$2 ~ /linux-image-[0-9.-]+-generic/ { print $2, $3}' \
	  | while read pkg version; do \
	      dbgpkg="linux-image-unsigned-${pkg#linux-image-}-dbgsym"; \
	      arch=$(dpkg --print-architecture); \
	      wget "https://launchpad.net/ubuntu/+archive/primary/+files/${dbgpkg}_${version}_${arch}.ddeb"; \
	    done

	ar p linux-image-unsigned-*-dbgsym_*.ddeb data.tar.xz | tar xJ --wildcards './usr/lib/debug/boot/vmlinux-*-generic'

crash

	sudo add-apt-repository -y ppa:mfo/lp2047861-noble-crash && sudo apt install -y crash

	$ dpkg -s crash | grep Version:
	Version: 8.0.4-1ubuntu1

	$ crash ./usr/lib/debug/boot/vmlinux-*-generic /var/crash/*/dump.*
	...
	      KERNEL: ./usr/lib/debug/boot/vmlinux-6.6.0-14-generic
	    DUMPFILE: /var/crash/202401082101/dump.202401082101  [PARTIAL DUMP]
		CPUS: 2
		DATE: Mon Jan  8 20:58:35 UTC 2024
	      UPTIME: 00:24:51
	LOAD AVERAGE: 0.08, 0.15, 0.67
	       TASKS: 127
	    NODENAME: test
	     RELEASE: 6.6.0-14-generic
	     VERSION: #14-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 30 10:53:08 UTC 2023
	     MACHINE: aarch64  (unknown Mhz)
	      MEMORY: 2 GB
	       PANIC: "Kernel panic - not syncing: sysrq triggered crash"
		 PID: 4928
	     COMMAND: "tee"
		TASK: ffff000000d13300  [THREAD_INFO: ffff000000d13300]
		 CPU: 0
	       STATE: TASK_RUNNING (PANIC)

	crash> bt
	PID: 4928     TASK: ffff000000d13300  CPU: 0    COMMAND: "tee"
	 #0 [ffff800083f63980] machine_kexec at ffff800080042e70
	 #1 [ffff800083f63b10] __crash_kexec at ffff8000802017a0
	 #2 [ffff800083f63b90] panic at ffff8000800c8b68
	 #3 [ffff800083f63c20] sysrq_handle_crash at ffff800080d3a81c
	 #4 [ffff800083f63c30] __handle_sysrq at ffff800080d3b694
	 #5 [ffff800083f63ca0] write_sysrq_trigger at ffff800080d3c1d8
	 #6 [ffff800083f63cc0] proc_reg_write at ffff8000805d4688
	 #7 [ffff800083f63d40] vfs_write at ffff8000804faa48
	 #8 [ffff800083f63d90] ksys_write at ffff8000804faec4
	 #9 [ffff800083f63dc0] __arm64_sys_write at ffff8000804fafac
	#10 [ffff800083f63e10] invoke_syscall at ffff800080033d68
	#11 [ffff800083f63e40] el0_svc_common.constprop.0 at ffff800080033e60
	#12 [ffff800083f63e70] do_el0_svc at ffff800080033f7c
	#13 [ffff800083f63e80] el0_svc at ffff80008158286c
	#14 [ffff800083f63ea0] el0t_64_sync_handler at ffff800081582f54
	#15 [ffff800083f63fe0] el0t_64_sync at ffff800080011e44
	     PC: 0000e295c3915c28   LR: 0000e295c38abb6c   SP: 0000ffffcb160ac0
	    X29: 0000ffffcb160ac0  X28: 0000000000000002  X27: 0000000000000002
	    X26: 0000ffffcb160c08  X25: 0000000000000002  X24: 0000000000000002
	    X23: 0000000000000002  X22: 0000000000000002  X21: 0000c232444942c0
	    X20: 0000ffffcb160c08  X19: 0000000000000003  X18: 0000000000000003
	    X17: 0000e295c38a9c00  X16: 0000c2320e44fdb0  X15: 0000000000000000
	    X14: ffffffffffffffff  X13: 0000000000000000  X12: 000000000000001a
	    X11: 0101010101010101  X10: 00000000000001b0   X9: 0000000000000028
	     X8: 0000000000000040   X7: 0000000000000001   X6: 0000000000000000
	     X5: 00000000fbad2c87   X4: 00000000ffffffff   X3: 0000000000000001
	     X2: 0000000000000002   X1: 0000ffffcb160c08   X0: 0000000000000003
	    ORIG_X0: 0000000000000003  SYSCALLNO: 40  PSTATE: 20001000
	crash> quit