From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id fumUIhe4wmnUQjcAWB0awg (envelope-from ) for ; Tue, 24 Mar 2026 12:13:11 -0400 Authentication-Results: simark.ca; dkim=pass (2048-bit key; unprotected) header.d=polymtl.ca header.i=@polymtl.ca header.a=rsa-sha256 header.s=oct2025 header.b=R0cshC9O; dkim-atps=neutral Received: by simark.ca (Postfix, from userid 112) id 7638A1E08C; Tue, 24 Mar 2026 12:13:11 -0400 (EDT) X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=ARC_SIGNED,ARC_VALID,BAYES_00, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H2,RCVD_IN_VALIDITY_CERTIFIED_BLOCKED, RCVD_IN_VALIDITY_RPBL_BLOCKED,RCVD_IN_VALIDITY_SAFE_BLOCKED autolearn=ham autolearn_force=no version=4.0.1 Received: from vm01.sourceware.org (vm01.sourceware.org [38.145.34.32]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 2B24D1E08C for ; Tue, 24 Mar 2026 12:13:10 -0400 (EDT) Received: from vm01.sourceware.org (localhost [127.0.0.1]) by sourceware.org (Postfix) with ESMTP id 8D3624BB5881 for ; Tue, 24 Mar 2026 16:13:09 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8D3624BB5881 Authentication-Results: sourceware.org; dkim=pass (2048-bit key, unprotected) header.d=polymtl.ca header.i=@polymtl.ca header.a=rsa-sha256 header.s=oct2025 header.b=R0cshC9O Received: from smtp.polymtl.ca (smtp.polymtl.ca [132.207.4.11]) by sourceware.org (Postfix) with ESMTPS id 61E564BAD151 for ; Tue, 24 Mar 2026 16:12:44 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 61E564BAD151 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=polymtl.ca Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=polymtl.ca ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 61E564BAD151 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=132.207.4.11 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1774368764; cv=none; b=nE4OljNH4xBSmto9voaEg6WOq5YVTh3fLYi9E89VCAGdHDMwQYu1Xb7oeX1D5EgnNzmLzBqE1Cs57sZF7yH5QivVcDnKIOlngrhms6qsoXpLMhFO1xfOv1+EEc3y/ssvN8fZe9gbfiM3MGy31tfUrJ1XoTd4RmvYZcR5KdRZbnM= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1774368764; c=relaxed/simple; bh=iAGRL55RHqGkn0x7nLKqGrkVx7OUtBCiCyJfE3YfpZg=; h=DKIM-Signature:Message-ID:Date:MIME-Version:Subject:To:From; b=MBO/dnnO8FiKLw8x9O0VPwJS1HqqY7ksnTdyVBS5xYuTOhsGbad3jNcko3xwJuUzah2CVfKY8tOj2eMMTV8UVkw6dsh24dSoqogQ4DqrSccS1IFE+aOJXwpHK43qqFxKtsMtDGICtTOQz4WQK7Nm3XgXZV7Rn3L71euARRv3KCI= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 61E564BAD151 Received: from simark.ca (simark.ca [158.69.221.121]) (authenticated bits=0) by smtp.polymtl.ca (8.14.7/8.14.7) with ESMTP id 62OGCYc8213607 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 24 Mar 2026 12:12:39 -0400 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp.polymtl.ca 62OGCYc8213607 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=polymtl.ca; s=oct2025; t=1774368760; bh=6okQ/RSQ9vpwwJW1L6brwapMW288VFDhVqCkcHdkMbc=; h=Date:Subject:To:Cc:From:In-Reply-To:From; b=R0cshC9O6c5/TJt5Nu+gvcNyfzW5+GNsttMJRKA3RcDbKwPKtugvlTjcBJbj0dhBk NiITx8DecX8+jWtraU26/1dE/XahkpejSoWC2c8w9zYTE59q5le4i5LoIzK1cJXO1x GcYq5oAxLoBL6Sgm8BBUxcgRwm3A3yJD90UQVITym4sGWZOVonp+ruKOcGBWs6BA2G gpDOw5UHDlasms2jqCRDAsfj+JjX4hVd9OYnJokLVgdHbXBA+Z7J/+R0WGHWRFdsRF SDHuw+whjkUZBdDo8a02danBM3kSqgWcRM7/nWk9htsLFQO6ZCITeakJJvODIbn60z lL+eQwndAjKwQ== Received: by simark.ca (Postfix) id 3D8861E08C; Tue, 24 Mar 2026 12:12:34 -0400 (EDT) Message-ID: <20468072-2ecc-43e7-bbf8-c946d7f8b79b@polymtl.ca> Date: Tue, 24 Mar 2026 12:12:33 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] Fix asertion failure while analysing core files in AIX with terminated threads. To: Aditya Vidyadhar Kamath , ulrich.weigand@de.ibm.com, tom@tromey.com Cc: gdb-patches@sourceware.org, Aditya.Kamath1@ibm.com, sangamesh.swamy@in.ibm.com References: <20260324141545.32330-2-akamath996@gmail.com> Content-Language: fr From: Simon Marchi In-Reply-To: <20260324141545.32330-2-akamath996@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Poly-FromMTA: (simark.ca [158.69.221.121]) at Tue, 24 Mar 2026 16:12:35 +0000 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 On 3/24/26 10:15 AM, Aditya Vidyadhar Kamath wrote: > From: Aditya Vidyadhar Kamath > > If we analyse core files today in AIX ( few of them ) we get, > regcache.c:432: internal-error: get_thread_regcache: > Assertion `thread->state != THREAD_EXITED' failed. > > The reason being the aix-thread.c file where root cause is the sync_threadlists() > function. When reading an AIX core file, threads are reported by > libpthread library as being in PST_TERM (terminated) state, which > is correct since process crashed. However, sync_threadlists() was > calling delete_thread() for these terminated threads, marking them > as THREAD_EXITED in GDBs internal state. Looking at how it works on Linux, the threads are in state THREAD_STOPPED when looking at a core dump. I think that THREAD_STOPPED makes sense, because when looking at a core, you are looking at a snapshot of the process state when it was still alive, with all threads stopped. Could the AIX target do the same? I think it would be nice for consistency across targets. Simon