From: Matthew Wilcox <willy@infradead.org>
To: yang che <chey84736@gmail.com>
Cc: mcgrof@kernel.org, Kees Cook <keescook@chromium.org>,
Iurii Zaikin <yzaikin@google.com>,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [RFC] hung_task:add detecting task in D state milliseconds timeout
Date: Sun, 5 Jul 2020 18:18:10 +0100 [thread overview]
Message-ID: <20200705171810.GV25523@casper.infradead.org> (raw)
In-Reply-To: <CAN_w4MWMfoDGfpON-bYHrU=KuJG2vpFj01ZbN4r-iwM4AyyuGw@mail.gmail.com>
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.
next prev parent reply other threads:[~2020-07-05 17:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-02 14:08 yang che
2020-07-02 17:43 ` Matthew Wilcox
2020-07-03 3:18 ` yang che
2020-07-05 17:18 ` Matthew Wilcox [this message]
2020-07-06 9:43 ` yang che
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