From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7D5DF7FBC5 for ; Fri, 23 Feb 2024 14:24:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708698279; cv=none; b=SXHcn3ep+xx68Q9hmbZSJnwJ/cyUHmxWda4kDcrDdP8Kiwhcg9DBMVm2/Q49fr+KGcKXvCnxL+dcM7Mjefrum57HIgfO0IAQ6OY8VRzj0eEoUgaKcvX+hv7BlOeOF+jrETVXnmHEjjiIpDkkosUfg0Pjt3ODh7YDwvbqRyPhnJ8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708698279; c=relaxed/simple; bh=vU/gHBg0qpmT0iQuaGkMnmP+a+3sqFwnNDs8zgNBfOA=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=XAqgzWLnVLESk+AztEtTxdSMhVJnO/m6eZzydgNiRZqrxN4/OxvH5uub+dfw2IwbtLBqy9pjGepVU4LJ+a5EFzK30X7hd8h1eAqHLi4YpkdqCJlYFarIDE1cXAoMTJgx82Tb7UfwOAwwQi1Df5qbjV/gC5ZDQiKl9YsaY9IGwU0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 19786C433F1; Fri, 23 Feb 2024 14:24:38 +0000 (UTC) Date: Fri, 23 Feb 2024 09:26:30 -0500 From: Steven Rostedt To: Mathieu Desnoyers Cc: Oleg Nesterov , wenyang.linux@foxmail.com, Masami Hiramatsu , Ingo Molnar , Mel Gorman , Peter Zijlstra , linux-kernel@vger.kernel.org Subject: Re: [PATCH] coredump debugging: add a tracepoint to report the coredumping Message-ID: <20240223092630.49b9d367@gandalf.local.home> In-Reply-To: <776b842b-b19f-44bf-bc34-ac756fce7466@efficios.com> References: <20240217104924.GB10393@redhat.com> <20240219112926.77ac16f8@gandalf.local.home> <20240219170038.GA710@redhat.com> <20240219122825.31579a1e@gandalf.local.home> <776b842b-b19f-44bf-bc34-ac756fce7466@efficios.com> X-Mailer: Claws Mail 3.19.1 (GTK+ 2.24.33; x86_64-pc-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 Mon, 19 Feb 2024 13:01:16 -0500 Mathieu Desnoyers wrote: > Between "sched_process_exit" and "sched_process_free", the task can still be > observed by a trace analysis looking at sched and signal events: it's a zombie at > that stage. Looking at the history of this tracepoint, it was added in 2008 by commit 0a16b60758433 ("tracing, sched: LTTng instrumentation - scheduler"). Hmm, LLTng? I wonder who the author was? Author: Mathieu Desnoyers :-D Mathieu, I would say it's your call on where the tracepoint can be located. You added it, you own it! -- Steve