From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM02-BN1-obe.outbound.protection.outlook.com (mail-bn1nam07olkn2062.outbound.protection.outlook.com [40.92.15.62]) by sourceware.org (Postfix) with ESMTPS id DD900385840F for ; Mon, 4 Oct 2021 08:47:36 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org DD900385840F ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=Y3RkST9qFXorKiKtNLYes0Bj5ZkRPCiDKaN1xSqteZqrwZb1dsY2nDajBpgjXsgbtla35H4W93s7Uskxn2dzcLQb8OE80kQVN0FPm0s1jxZpnolmh0x3S+MCgOUbQkdDIMdwiv8J8SiidsSRWybZiBxOtF9Sh2Rqsh2b9/1hApqFVfBZL5cgLACBe+i4T2Rd3aiu5mcacctzelgn1xCGRwrgoVsUh6NZbMC2nRklt+/NmIQPFA4q1Y3WlCD0UuPjXJUaGn8RrebvwgkmzwzqYjKhaJ6ENxbTacbjVaYPvEHCkiAZvFGEMlynpp3qFrfPpvOGaCsrQ+93YLFaNV/83g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=MT5adaBOgzu357h1bpMSo4LA5UAQh8vAW//lgL40ov8=; b=SvT2sl8JWj636VF3eWPHVf7R3oieGOH538mN+r6S+pFJIBdp1s5uYZ7AsmoL87cQ6R7KwBwr+dgT/KBlCmV0VksRuTzZC5V4teu05G2GU/gA1Z84fUUaNhEdgTT/lvvA6KQ+QsGW1tY5lD0rDPqvw3b4Phkl4SnvpxxMZaG7bxUNxyxEQKWG6hMAmFMESCllEpQkDXz4QRgYbc4+8hAZ6pTzv74+EPZOdt3oW3aSNah1nko7An5wd9qhp/9knLqCrmFhdJTvF+pztWSYqlMgW/bTS00gfOZVMXtJtlHsl0X1YUPtgVB4ZnoNaEWw9YMRhfirIZoFucsHQaopF8fZbg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none Received: from DM6PR05MB4697.namprd05.prod.outlook.com (2603:10b6:5:18::13) by DM6PR05MB5049.namprd05.prod.outlook.com (2603:10b6:5:7a::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4587.16; Mon, 4 Oct 2021 08:47:36 +0000 Received: from DM6PR05MB4697.namprd05.prod.outlook.com ([fe80::4cbf:e707:d07b:89f6]) by DM6PR05MB4697.namprd05.prod.outlook.com ([fe80::4cbf:e707:d07b:89f6%6]) with mapi id 15.20.4587.016; Mon, 4 Oct 2021 08:47:36 +0000 From: unlvsur unlvsur To: unlvsur unlvsur via Libstdc++ Subject: About amd ryzen 3000 bugs of rdseed and rdrand? Thread-Topic: About amd ryzen 3000 bugs of rdseed and rdrand? Thread-Index: AQHXuPvn1bw+oAfxikmC2ivLyYIxPg== Date: Mon, 4 Oct 2021 08:47:35 +0000 Message-ID: Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-tmn: [6WiPy/T8QgJKKsaXYJ0tN2hazePNSNl7] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 0dc55b0a-78e1-4e85-a28f-08d987139d27 x-ms-traffictypediagnostic: DM6PR05MB5049: x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 9U5kt41a6Zfgut74RjuwVp3/s+S+7JroKYmYTUMbHfc9crDcQqctIiamOzw/z9aOMfAwVcZNtOutqVbsIpd4Fn+xljwHjbiXv4PtGIRAg8nNnQO1KA8b6kPRiMHEmAMGBhiYFMTdhHUGvJvkdQ5HxKDFUjZMqnu0g+vucw0OUrNPuao/L3pX/c+fIJPHBjG4GOEKNQ4VhSUV09OouLJoTkXOltuIi3mxFSXWH0WKzxyRvotQwRD9aPEKA3fJuydVDYxpP034sbEVFoWJqGe351K2xvVUWge96hOOGWQwFGyZCVKLbRu8SWygBkzSsjKcCly9ERaHvnLzhVkMEozCm6QRmZ1BOjrmvJwbFlS3FKU2SuwptYTdOhnnNmppPGZxScTI3RDolzTstHRfMzUrbQshl8BCzJLT8ygpc67uYDgwbqQL6QxugEmToaiG3drZEe881RaiZtzWW0Dx2s2fYg4lC1fvz/+WE5nTe8g97Xs= x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: r9L6rTJdfRIrjnOb9AomMQIG6tM+cFYXSdUZVgeZRtETOL94M+DvyR69rxrIHWcC7oQemxcGjYUs8ZBuqE+LIpSeaj9nM0YCwAmv+i5cXTKLq0jQX2dzVJQuc0u+QFPBRPPiAy88V8w3eT9FMbSfcw== x-ms-exchange-transport-forked: True MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-3174-8-msonline-outlook-e6bda.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR05MB4697.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: 0dc55b0a-78e1-4e85-a28f-08d987139d27 X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Oct 2021 08:47:35.9834 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR05MB5049 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: libstdc++@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++ mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Oct 2021 08:47:38 -0000 My computer used to always return -1 for rdseed and rdrand for ryzen 3000. AMD Ryzen 3000 series CPUs can't do Random on boot causing Boot Failure on = newer Linux distributions - LinuxReviews [PATCH] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h (kernel.o= rg) Libstdc++ uses rdseed and rdrand internally. Does it contain the rdseed bug= s on ryzen 3000 cpu? Sent from Mail for Window= s