Comment 4 for bug 2047861

Autopkgtests above are in live system form.
Tested in dump file form in amd64; working.

 # crash ./usr/lib/debug/boot/vmlinux-*-generic /var/crash/*/dump.*
 ...
       KERNEL: ./usr/lib/debug/boot/vmlinux-6.6.0-14-generic
     DUMPFILE: /var/crash/202401081708/dump.202401081708 [PARTIAL DUMP]
  CPUS: 2
  DATE: Mon Jan 8 17:08:44 UTC 2024
       UPTIME: 00:01:58
 LOAD AVERAGE: 0.18, 0.15, 0.06
        TASKS: 168
     NODENAME: mfo-noble-vm
      RELEASE: 6.6.0-14-generic
      VERSION: #14-Ubuntu SMP PREEMPT_DYNAMIC Thu Nov 30 10:27:29 UTC 2023
      MACHINE: x86_64 (1997 Mhz)
       MEMORY: 2 GB
        PANIC: "Kernel panic - not syncing: sysrq triggered crash"
   PID: 4587
      COMMAND: "bash"
  TASK: ffff888005c60000 [THREAD_INFO: ffff888005c60000]
   CPU: 1
        STATE: TASK_RUNNING (PANIC)

 crash> bt
 PID: 4587 TASK: ffff888005c60000 CPU: 1 COMMAND: "bash"
  #0 [ffffc90000fb7ba0] machine_kexec at ffffffff862b05eb
  #1 [ffffc90000fb7c00] __crash_kexec at ffffffff8641abe3
  #2 [ffffc90000fb7cc8] panic at ffffffff862f8be4
  #3 [ffffc90000fb7d48] sysrq_handle_crash at ffffffff86ca64ca
  #4 [ffffc90000fb7d58] __handle_sysrq at ffffffff86ca6ca3
  #5 [ffffc90000fb7da0] write_sysrq_trigger at ffffffff86ca74e8
  #6 [ffffc90000fb7db8] proc_reg_write at ffffffff8678060c
  #7 [ffffc90000fb7dd8] vfs_write at ffffffff866c4472
  #8 [ffffc90000fb7e78] ksys_write at ffffffff866c4b73
  #9 [ffffc90000fb7eb8] __x64_sys_write at ffffffff866c4c29
 #10 [ffffc90000fb7ec8] do_syscall_64 at ffffffff8734a64c
 #11 [ffffc90000fb7f50] entry_SYSCALL_64_after_hwframe at ffffffff874000e6
     RIP: 0000747d04f1b214 RSP: 00007ffd128231c8 RFLAGS: 00000202
     RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 0000747d04f1b214
     RDX: 0000000000000002 RSI: 000062040a0a75a0 RDI: 0000000000000001
     RBP: 000062040a0a75a0 R8: 0000000000000073 R9: 0000000000000000
     R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002
     R13: 0000747d04fff5c0 R14: 0000747d04ffcf20 R15: 0000000000000000
     ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b
 crash> quit