From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Mattias_Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.devel Subject: Re: MPS: Bytecode stack Date: Mon, 6 May 2024 15:54:43 +0200 Message-ID: <8A6529B6-511F-4E61-9507-F204EDCF1B76@gmail.com> References: <3174C6A6-28A6-492E-A268-E391A13FEA36@gmail.com> <038B57D6-C449-4C10-85F8-69D0A7844219@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.15\)) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="29825"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Eli Zaretskii , Helmut Eller , Emacs Devel To: =?utf-8?Q?Gerd_M=C3=B6llmann?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Mon May 06 15:55:42 2024 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1s3yog-0007d1-8y for ged-emacs-devel@m.gmane-mx.org; Mon, 06 May 2024 15:55:42 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s3ynx-00012t-9C; Mon, 06 May 2024 09:54:58 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s3ynq-0000zr-Pb for emacs-devel@gnu.org; Mon, 06 May 2024 09:54:51 -0400 Original-Received: from mail-lf1-x12e.google.com ([2a00:1450:4864:20::12e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1s3ynn-0001mO-NL; Mon, 06 May 2024 09:54:50 -0400 Original-Received: by mail-lf1-x12e.google.com with SMTP id 2adb3069b0e04-51ffff16400so2607378e87.2; Mon, 06 May 2024 06:54:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1715003685; x=1715608485; darn=gnu.org; h=to:references:message-id:content-transfer-encoding:cc:date :in-reply-to:from:subject:mime-version:sender:from:to:cc:subject :date:message-id:reply-to; bh=JDAkUZyDg+43JbFIiZTxu+Dd87Ag08D4ftEG3K39X68=; b=Bfer0yTJgmcs/VBteWs4dijpEv/FJFmWW0xwYgDtzEBqXan0emhMUpmfucW9jGVQIh HqkoifZcKG+dz4YO+ho+8ynQ72vAhcL/RY0MT7IuLf/9XZtFEdKE14lyoaqlYKY50qFv 91vh7ObNG7//nM0tpRooL4SNl3AnRVvZZvJnCBThxljIkouq4rZ2raJLjZYgECvcda5U WCkNMIuuHFgrf4k4IJNEmmDEf7FALJyWsOA0PIyZWU8ZjbAI8xW/MuhHjIr+zPzb6muC 08cZ9zYJ/NWLcVg4jMvloWGMv3Gwzoy63eWeavgp/y5zrAVQkX72rogHo8Ov8ut8Y1dT 1BuA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715003685; x=1715608485; h=to:references:message-id:content-transfer-encoding:cc:date :in-reply-to:from:subject:mime-version:sender:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=JDAkUZyDg+43JbFIiZTxu+Dd87Ag08D4ftEG3K39X68=; b=ZB5Xfsea06/q7pFFYgw+ltlYFrHD3DsBxBBy0+CPP+mvYsqPREi9FVsglG/bGlYbYx 7OgusHoOlkF0FwvooKf8JHPiCQZfvjznZYoyxhdwBVqqo1UMyslBolFZS1tngHudtb+N Hq2TTJf/r+cYotTuMeD/IJnh/qH3235UFyBxO5L7T6eCyhTx0p0iC9ajJv3pychTkstz XUbxFUPd03NZway7FfB8W2L1SXpDRcM8R1574e7XffvZkP+JuzsgrQ0BpK4q+hleSY3T sNRY8rw48muBlEXVlSZFWqN8LpJ60VUNdxHiYcEI5mUO6Fe3OHjtXSJt4UMhUQ+wE4iV jwcQ== X-Forwarded-Encrypted: i=1; AJvYcCWy1v6zLlQigB8vpJDqjN2rPaHn5Wui4N0lATLxFS1phbknhkTVLirWytiWczFOyZH8MvKaN+/EXkZLN/hm8m1QfHCT X-Gm-Message-State: AOJu0YwnjPhrlPg8bBojBwCNra1QbxLd/ktf73g2Y5P4BgR9DEZIJjZW DxadYXFDdthmv4wrjNUAbwr69aZciee0GmAPY1YhYyHj3AlP9HRx X-Google-Smtp-Source: AGHT+IHNIX3oO4xg5HThkOxFvxHS6y5HGLt89BuzgVoQoLGAvSGhAPb7a6RBt0KMyTT6hcQOGML1BQ== X-Received: by 2002:a05:6512:3609:b0:51d:23d8:3f9e with SMTP id f9-20020a056512360900b0051d23d83f9emr8233509lfs.27.1715003685119; Mon, 06 May 2024 06:54:45 -0700 (PDT) Original-Received: from smtpclient.apple (c80-217-1-132.bredband.tele2.se. [80.217.1.132]) by smtp.gmail.com with ESMTPSA id d34-20020a0565123d2200b005175dab1cfdsm1688954lfv.257.2024.05.06.06.54.44 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 May 2024 06:54:44 -0700 (PDT) In-Reply-To: X-Mailer: Apple Mail (2.3654.120.0.1.15) Received-SPF: pass client-ip=2a00:1450:4864:20::12e; envelope-from=mattias.engdegard@gmail.com; helo=mail-lf1-x12e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:318894 Archived-At: 6 maj 2024 kl. 15.35 skrev Gerd M=C3=B6llmann = : > Or, wait a moment... I'm wondering about what happens when the client > continues to exec byte code while we are scanning... The root is not > like objects in MPS memory to which we get granted exclusive access. = Or > so I think ATM. But roots can have a barrier applied to them, I think. > MPS_RM_PROT. I have to read a bit. Yes, that's basically what I was wondering and the reason for the = synthetic little example. Essentially, what context is the scanning code running in? The mutator = thread? If so, as an async signal handler, or in a more controlled = context? If in a separate thread, does the mutator keep running? How did = we get hold of the mutator stack and registers? And so on.