Messages in this thread | | | From | 孙世龙 sunshilong <> | Date | Sat, 11 Jul 2020 17:04:21 +0800 | Subject | What methods or tools could be used to investigate the causes of hard or soft lockup? |
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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.
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