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Wed, 27 Apr 2022 11:00:29 +0000 Received: from VI1PR08MB3919.eurprd08.prod.outlook.com ([fe80::7080:6233:cf8f:a8a6]) by VI1PR08MB3919.eurprd08.prod.outlook.com ([fe80::7080:6233:cf8f:a8a6%7]) with mapi id 15.20.5186.021; Wed, 27 Apr 2022 11:00:28 +0000 Message-ID: <85bb4b17-fa07-f8c9-8d46-3a8094a107cf@arm.com> Date: Wed, 27 Apr 2022 12:00:27 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH] Fix crash with "maintenance print arc" Content-Language: en-US To: Andrew Burgess , gdb-patches@sourceware.org References: <20220427100753.364631-1-luis.machado@arm.com> <871qxiq00y.fsf@redhat.com> From: Luis Machado In-Reply-To: <871qxiq00y.fsf@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: LO4P265CA0035.GBRP265.PROD.OUTLOOK.COM (2603:10a6:600:2ae::11) To VI1PR08MB3919.eurprd08.prod.outlook.com (2603:10a6:803:c4::31) MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: 4e64ced8-a2f4-45d6-10a6-08da283d2a4e X-MS-TrafficTypeDiagnostic: PA4PR08MB7484:EE_|VE1EUR03FT016:EE_|AM6PR08MB3592:EE_ X-Microsoft-Antispam-PRVS: 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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Can you give more details on how to reproduce the > crash? There is not much more to it other than building a 64-bit aarch64 Linux Ubuntu 20.04 master with --enable-targets=all. I can reproduce it quite reliably. -- (gdb) maint print arc Fatal signal: Segmentation fault ----- Backtrace ----- 0xad07a3 gdb_internal_backtrace_1 ../../../repos/binutils-gdb/gdb/bt-utils.c:122 0xad07a3 _Z22gdb_internal_backtracev ../../../repos/binutils-gdb/gdb/bt-utils.c:168 0xb8d6cd handle_fatal_signal ../../../repos/binutils-gdb/gdb/event-top.c:946 0xb8d761 handle_sigsegv ../../../repos/binutils-gdb/gdb/event-top.c:1019 0xf72f47bf ??? --------------------- A fatal error internal to GDB has been detected, further debugging is not possible. GDB will now terminate. This is a bug, please report it. For instructions, see: . Segmentation fault (core dumped) --