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Date:   Sun, 5 Jul 2020 18:18:10 +0100
From:   Matthew Wilcox <>
To:     yang che <>
Cc:, Kees Cook <>,
        Iurii Zaikin <>,,
Subject: Re: [RFC] hung_task:add detecting task in D state milliseconds

On Fri, Jul 03, 2020 at 11:18:28AM +0800, yang che wrote:
>   my understanding, KernelShark can't trigger panic, hung_task can
> trigger. According to my use,
> sometimes need to trigger panic to grab ramdump to analyze lock and
> memory problems.

You shouldn't need to trigger a panic to analyse locking or memory
problems.  KernelShark is supposed to be able to help you do that without
bringing down the system.  Give it a try, and if it doesn't work, Steven
Rostedt is very interested in making it work for your case.

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