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Sun, 21 Jun 2026 03:10:17 -0400 (EDT) Date: Sun, 21 Jun 2026 03:10:15 -0400 From: Steven Rostedt To: Linus Torvalds Cc: Yury Norov , LKML , Masami Hiramatsu , Mathieu Desnoyers , Ao Sun , David Carlier , Karl Mehltretter , Martin Kaiser , Pengpeng Hou , Qian-Yu Lin , Rik van Riel , Rosen Penev , Shuvam Pandey , Vineeth Pillai , Yash Suthar , Yu Peng , Sebastian Andrzej Siewior , Thomas Gleixner , Peter Zijlstra Subject: Re: [GIT PULL] tracing: Updates for 7.2 Message-ID: <20260621031015.6da551c8@fedora> In-Reply-To: References: <20260616180122.57a3b426@fedora> <20260619081513.3e4a1fb0@fedora> <20260620181957.115d662c@fedora> <20260620194233.4e1e5d10@fedora> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-redhat-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sat, 20 Jun 2026 17:18:26 -0700 Linus Torvalds wrote: > But I personally think that debugging should be done by looking at and > understanding the code. To me, "debugging using printk's" - fancy > printk's or not - is a failure mode, and soemthing you should be > quietly ashamed of, instead of using it as some kind of argument for > making everybody elses kernel worse. One last note on this. I don't think I ever used "debugging using printk's" for a design bug. It's always ended up being something like an off by one issue. That is, looking at the code can easily miss it. -- Steve