What methods or tools could be used to investigate the causes of hard or soft lockup?

Hi, list I have frequently faced sort lockups and hard lockups. Here are some example logs: 1. Watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [cantest:1669] 2. NMI watchdog: Watchdog detected hard LOCKUP on CPU 0 What methods or tools could be used to investigate the causes of hard or soft lockups? I have been stuck with such problems for a long time. I would be grateful if somebody shed some light on this issue. Any advice on how to proceed? Thank you for your attention to this matter. Best regards.