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Received: from 75-166-225-82.hlrn.qwest.net ([75.166.225.82]:45030 helo=bapiya) by box5379.bluehost.com with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.99.2) (envelope-from ) id 1wQ4LR-00000002MUv-48rf; Thu, 21 May 2026 08:25:54 -0600 From: Tom Tromey To: simon.marchi@polymtl.ca Cc: gdb-patches@sourceware.org Subject: Re: [PATCH 1/2] gdb: lock complaint_mutex in clear_complaints In-Reply-To: <20260521040112.1618748-1-simon.marchi@polymtl.ca> (simon marchi's message of "Thu, 21 May 2026 00:00:48 -0400") References: <20260521040112.1618748-1-simon.marchi@polymtl.ca> X-Attribution: Tom Date: Thu, 21 May 2026 08:25:53 -0600 Message-ID: <87bje8alfy.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) 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: 75.166.225.82 X-Source-L: No X-Exim-ID: 1wQ4LR-00000002MUv-48rf X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-225-82.hlrn.qwest.net (bapiya) [75.166.225.82]:45030 X-Source-Auth: tom+tromey.com X-Email-Count: 10 X-Org: HG=bhshared;ORG=bluehost; X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfJw4SVXYC501fxU5+I9DDRwjCdhHeRAGLW2YiTWQCwvBVQ1cUhCxp6VkKzOOjDMU7fRtr9wzkVKAg0l8wD00HxTSyRASS1WHg5HQX1WVCpvuQHBnmXM7 vC0BMHRKUQNN6Yu07k019LZgSX9NH/eFwgdttqZLqS0/pJp6kO8tlOBlszd7t6D5jY4bxPrE5BiuBup3X15/7PcS9sco6zdt4DY= X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org >>>>> "Simon" == simon marchi writes: Simon> This points to clear_complaints touching the global counters map in the Simon> main thread without holding a lock, while a background thread touched Simon> the map in a worker thread while holding the lock complaint_mutex. Simon> Fix this by holding the complaint_mutex lock in clear_complaints. Approved-By: Tom Tromey Tom