From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from outbound-ss-820.bluehost.com (outbound-ss-820.bluehost.com [69.89.24.241]) by sourceware.org (Postfix) with ESMTPS id 90B303858C53 for ; Mon, 31 Jul 2023 16:37:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 90B303858C53 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=tromey.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=tromey.com Received: from cmgw14.mail.unifiedlayer.com (unknown [10.0.90.129]) by progateway2.mail.pro1.eigbox.com (Postfix) with ESMTP id C493310047F96 for ; Mon, 31 Jul 2023 16:37:37 +0000 (UTC) Received: from box5379.bluehost.com ([162.241.216.53]) by cmsmtp with ESMTP id QVtpqn0LSJse9QVtpq6POD; Mon, 31 Jul 2023 16:37:37 +0000 X-Authority-Reason: nr=8 X-Authority-Analysis: v=2.4 cv=IunbzJzg c=1 sm=1 tr=0 ts=64c7e351 a=ApxJNpeYhEAb1aAlGBBbmA==:117 a=ApxJNpeYhEAb1aAlGBBbmA==:17 a=OWjo9vPv0XrRhIrVQ50Ab3nP57M=:19 a=dLZJa+xiwSxG16/P+YVxDGlgEgI=:19 a=ws7JD89P4LkA:10:nop_rcvd_month_year a=Qbun_eYptAEA:10:endurance_base64_authed_username_1 a=CCpqsmhAAAAA:8 a=zstS-IiYAAAA:8 a=doS7m0sKxJoEYh8ySP8A:9 a=zZCYzV9kfG8A:10:nop_mobile_phish_fin_urg a=ul9cdbp4aOFLsgKbc677:22 a=4G6NA9xxw8l3yy4pmD5M:22 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=tromey.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References :Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=bqc4vJQqaFlx746AXaW/vwCqR747Ulv2jxxLs//gn54=; b=q2qae4za2LrKAUqDfyJJaAn8W5 WNKGjZspWfT164VsSYNPAoy80nNrB0FQ+cpz2e4BiSZMFFQxkJTWU+IlMHiShGm5IEzz2HH0G+hHA yimBlnOQCfEeYW7aa25xWpCrs; Received: from 75-166-135-140.hlrn.qwest.net ([75.166.135.140]:41930 helo=murgatroyd) by box5379.bluehost.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1qQVtp-002ZI6-10; Mon, 31 Jul 2023 10:37:37 -0600 From: Tom Tromey To: Tom de Vries via Gdb-patches Cc: Tom de Vries Subject: Re: [PATCH] [gdb/testsuite] Set TSAN_OPTIONS by default to history_size=7 References: <20230731071547.1140-1-tdevries@suse.de> X-Attribution: Tom Date: Mon, 31 Jul 2023 10:37:35 -0600 In-Reply-To: <20230731071547.1140-1-tdevries@suse.de> (Tom de Vries via Gdb-patches's message of "Mon, 31 Jul 2023 09:15:47 +0200") Message-ID: <874jlkghps.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 75.166.135.140 X-Source-L: No X-Exim-ID: 1qQVtp-002ZI6-10 X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-135-140.hlrn.qwest.net (murgatroyd) [75.166.135.140]:41930 X-Source-Auth: tom+tromey.com X-Email-Count: 1 X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3018.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,JMQ_SPF_NEUTRAL,KAM_NUMSUBJECT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: >>>>> "Tom" == Tom de Vries via Gdb-patches writes: Tom> I build gdb with -fsanitize=thread and ran the testsuite, and into the case Tom> that a race is detected, but we see the full stack trace only for one of the Tom> two accesses, and the other one is showing "failed to restore the stack". Tom> Try to prevent this by setting ThreadSanitizer flag history_size [1] to the Tom> maximum (7) by default, as suggested here [2]. Tom> Tested on x86_64-linux. Seems totally fine for me. Thank you for this & for trying out ThreadSanitizer. Approved-By: Tom Tromey Tom