From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 468FCC433EF for ; Fri, 27 May 2022 22:37:07 +0000 (UTC) Received: from localhost ([::1]:46822 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nuiZt-0004YC-2R for qemu-devel@archiver.kernel.org; Fri, 27 May 2022 18:37:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59910) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nuiVe-0000YQ-0F for qemu-devel@nongnu.org; Fri, 27 May 2022 18:32:42 -0400 Received: from mail-pj1-x1030.google.com ([2607:f8b0:4864:20::1030]:44602) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nuiVa-00027Z-R3 for qemu-devel@nongnu.org; Fri, 27 May 2022 18:32:41 -0400 Received: by mail-pj1-x1030.google.com with SMTP id pq9-20020a17090b3d8900b001df622bf81dso5529339pjb.3 for ; Fri, 27 May 2022 15:32:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=f2mWjCXjvVFI6Pc9fAwJiFTlukmW0/9eXXyxdFlx9E8=; b=GhPj7E1oInGKDX+XDvlzo3l/uxk7e6NKGwRNN9//R9JjCGUGr2c98nSjgRr4BfKxhu 0w+5Lpz1E+Xx6xaCk1BmqrIbn2jtAHBX9sutLeSZnJQjAGYcs9JQHXGDEFEVZMNrqwja fW4+QGsLqTKLfTSsf5wlf/DXt+uwP0nDtlREx2OwalqCnnsLIFt8GBQqsINVYRl6MymM dFqcfTOwTkm9Nhyig/YudM/RujK0OAR1m4yAzt2TiNSy4DYRMcpX7Lfoa/i9nK/Azevn 36uWj2+1TLZBqraC1dIEqeWx88Kf4HAnbD8Zrojdx0rno24lfBRwg9GjEVUtPPDUhYB+ pJOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=f2mWjCXjvVFI6Pc9fAwJiFTlukmW0/9eXXyxdFlx9E8=; b=eoGVnfPlC+c+JfB7Du8ObBK/OtcDBYJ4BlGIjgBY5GAr3y64GKU8w+EKo7FmA037y4 ousj+zlxgmrCPESwQWVL4biCiLMuRbf+O4jaN+z8uFug+bTv01tN5lZA9EaYNdY2c4Ak yZpmM4UWwtmMSAA5aSIFMiLFR2oTabzZCnQNdZ0pgeaR0YW9atYyQeVIqAPcZKS/at3g bSMMqa1X2TaN426vhhZi3EQTlNxN9RUuRTj05wB0mthdZW8f+99Q/HKF6s3CpNoRStn3 jEN6ApAuaCcDFrLmGnTeC86DqSWTxZE1nT5PjbXDwKYIjVyjtjvKw64pGU6cjZWOkpUT IetA== X-Gm-Message-State: AOAM5302ZkoCSqvlGFYBKtfFBR6cog8JSEITDgGHXodIDaYbxLaJvqon KTmRfVAF3U2toSDtt8s4yK04sg== X-Google-Smtp-Source: ABdhPJxNwaKytMDLtZuBshdqy9ejEhCYjgXUXSxvSgjq9QG+H5bBfP+TxukJS4zkkdadFwrDNbyBig== X-Received: by 2002:a17:902:714b:b0:162:ed0:25e5 with SMTP id u11-20020a170902714b00b001620ed025e5mr32240759plm.168.1653690757217; Fri, 27 May 2022 15:32:37 -0700 (PDT) Received: from [192.168.0.4] (174-21-71-225.tukw.qwest.net. [174.21.71.225]) by smtp.gmail.com with ESMTPSA id q27-20020aa7843b000000b0051878e8cc13sm3928652pfn.116.2022.05.27.15.32.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 27 May 2022 15:32:36 -0700 (PDT) Message-ID: Date: Fri, 27 May 2022 15:32:34 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 Subject: Re: [PATCH v2] linux-user: Adjust child_tidptr on set_tid_address() syscall Content-Language: en-US To: Helge Deller , Laurent Vivier , qemu-devel@nongnu.org Cc: dave.anglin@bell.net References: From: Richard Henderson In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1030.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, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 5/27/22 13:44, Helge Deller wrote: > I think the previous patch was wrong, since we just emulate writing to > child_tidptr. Below is updated RFC patch. > > --- > [PATCH] linux-user: Adjust child_tidptr on set_tid_address() > > Keep track of the new child tidptr given by a set_tid_address() syscall. > > Signed-off-by: Helge Deller Reviewed-by: Richard Henderson r~