From: John Ogness <john.ogness@linutronix.de>
To: Song Chen <chensong_2000@189.cn>, Andrew Halaney <ahalaney@redhat.com>
Cc: Derek Barbosa <debarbos@redhat.com>,
pmladek@suse.com, rostedt@goodmis.org, senozhatsky@chromium.org,
linux-rt-users@vger.kernel.org, linux-kernel@vger.kernel.org,
williams@redhat.com, jlelli@redhat.com
Subject: Re: a question about how to debug this case in ftrace
Date: Wed, 26 Jun 2024 09:31:03 +0206 [thread overview]
Message-ID: <8734p0jhdc.fsf@jogness.linutronix.de> (raw)
In-Reply-To: <e6b0ba9e-e8f6-4c42-9f63-e3b67d7edbf0@189.cn>
On 2024-06-26, Song Chen <chensong_2000@189.cn> wrote:
> ohh, by the way, i'm curious why softlockup/hardlockup/hungtask don't
> have ftrace dump as well as rcu stall, or is it possible to add a
> parameter in cmdline to redirect
> softlockup/hardlockup/hungtask/rcustall warning either to ftrace or
> printk.
Are you aware of the printk:console ftrace event? If you enable it, all
printk output also goes into the ftrace buffers.
John Ogness
next prev parent reply other threads:[~2024-06-26 7:25 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-18 15:20 Derek Barbosa
2024-06-25 1:36 ` a question about how to debug this case in ftrace Song Chen
2024-06-25 13:20 ` Andrew Halaney
2024-06-25 13:44 ` Steven Rostedt
2024-06-25 14:09 ` John Ogness
2024-06-26 2:17 ` Song Chen
2024-06-26 2:06 ` Song Chen
2024-06-26 2:12 ` Song Chen
2024-06-26 7:25 ` John Ogness [this message]
2024-06-26 8:26 ` Song Chen
2024-06-26 14:50 ` Steven Rostedt
2024-06-27 2:26 ` Song Chen
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