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Mon, 11 Mar 2024 15:12:18 +0000 Message-ID: <8ff67060-ce99-440f-8c81-17ab3c594b8e@arm.com> Date: Mon, 11 Mar 2024 15:12:14 +0000 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] [gdb/tdep] Fix gdb.base/watch-bitfields.exp on aarch64 Content-Language: en-US To: Tom de Vries , gdb-patches@sourceware.org References: <20240220205425.13587-1-tdevries@suse.de> <20240220205425.13587-2-tdevries@suse.de> <6fb49eb9-e480-44b4-9c57-f0e19d43d204@arm.com> From: Luis Machado In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LO4P265CA0232.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:315::14) To VI1PR08MB3919.eurprd08.prod.outlook.com (2603:10a6:803:c4::31) MIME-Version: 1.0 X-MS-TrafficTypeDiagnostic: VI1PR08MB3919:EE_|AS8PR08MB10196:EE_|AM4PEPF00027A66:EE_|AM0PR08MB5521:EE_ X-MS-Office365-Filtering-Correlation-Id: 5269610d-52a5-4b58-b7bb-08dc41dda8fe x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Mar 2024 15:12:25.8142 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5269610d-52a5-4b58-b7bb-08dc41dda8fe X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM4PEPF00027A66.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR08MB5521 X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,KAM_NUMSUBJECT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY 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: On 3/11/24 15:04, Tom de Vries wrote: > On 3/7/24 13:11, Luis Machado wrote: >> Unfortunately I don't see the same failure on a graviton (aarch64). It is usually how these >> hardware watchpoint issues go. Things behave differently depending on the setup you >> have, since the reported trap address may be different. >> > > I managed to reproduce the fails in both gdb.base/watch-bitfields.exp and gdb.base/watchpoint-unaligned.exp on cfarm103 ( https://portal.cfarm.net/machines/list/ ), so if you want to reproduce and investigate the behaviour, you could try on that machine. Thanks for the info. Does patch 2/2 rely on patch 1/2 to work properly? Otherwise I think patch 2/2 is good to push. I'm a bit nervous about 1/2 though, as that may also widen the window for false positives in terms of hardware watchpoint triggers.