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[147.75.199.223]) by mx.google.com with ESMTPS id ey3-20020a0562140b6300b0068f44f8d47csi11332733qvb.45.2024.02.21.09.46.51 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Feb 2024 09:46:51 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-75223-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; arc=pass (i=1); spf=pass (google.com: domain of linux-kernel+bounces-75223-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-75223-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 43BD41C236E8 for ; Wed, 21 Feb 2024 17:46:51 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 6504C84052; Wed, 21 Feb 2024 17:46:46 +0000 (UTC) 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 E646D83CCE for ; Wed, 21 Feb 2024 17:46:45 +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=1708537605; cv=none; b=mK6OUW2c7PcivmuxWlrsw5YK/1i2cxBRjwRylrt4SP7XrNvZZ6wv1ZNgKBtp9XZvyzRW9Oz32mJJ2ChpVdMpr74pa5rpPuOFvSdfgZF5ppH+AHQeEXKsKyFmL/3LyU+yQnVqghIE6Rt6bkYF9NHwAmug6ppWvHVS0WiaZUKIxRg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708537605; c=relaxed/simple; bh=toIQ7g+qE+iklazK71DzxFyAf3qZhh4eIlVYKF6s5VA=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qYix7tOlK2WTPeXhtZ97OQRiLJKBqemddmpGUaFukwUeIf/VHaCwAYso4WYXBGO+73nfggoduzsSFKNJUFqlpOjMG6D07DP6lByDCYvdwkG/km6A1g3efwYupDMw7kOf+GVcMqZBu3l59CajqL0cuD9OYw4+00s7nYPALU8Eld4= 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 91721C433F1; Wed, 21 Feb 2024 17:46:44 +0000 (UTC) Date: Wed, 21 Feb 2024 12:48:32 -0500 From: Steven Rostedt To: Wen Yang Cc: Oleg Nesterov , Masami Hiramatsu , Ingo Molnar , Mathieu Desnoyers , Mel Gorman , Peter Zijlstra , linux-kernel@vger.kernel.org Subject: Re: [PATCH] coredump debugging: add a tracepoint to report the coredumping Message-ID: <20240221124832.14a10f80@gandalf.local.home> In-Reply-To: References: <20240217104924.GB10393@redhat.com> <20240219112926.77ac16f8@gandalf.local.home> <20240219170038.GA710@redhat.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=UTF-8 Content-Transfer-Encoding: quoted-printable On Wed, 21 Feb 2024 23:45:58 +0800 Wen Yang wrote: > Thank you Oleg, thank you Steven=EF=BC=8C >=20 > We could first put trace_sched_process_exit() aside and take a look at=20 > these three patches: >=20 > 2d4bcf886e42f0f4846a3d9bdc3a90d278903a2e ("exit: Remove=20 > profile_task_exit & profile_munmap") >=20 > 586b58cac8b4683eb58a1446fbc399de18974e40 (=E2=80=9Cexit: Move preemption = fixup=20 > up, move blocking operations down=E2=80=9D) >=20 > And the original: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 >=20 >=20 > Could we add a new TP similar to profile_task_exit()? I have no problem with adding that. But others may have other opinions on the subject matter. -- Steve