From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.kundenserver.de (mout.kundenserver.de [217.72.192.75]) by sourceware.org (Postfix) with ESMTPS id 865E7386183F for ; Mon, 18 Jan 2021 17:43:03 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 865E7386183F Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=technology.de Authentication-Results: sourceware.org; spf=none smtp.mailfrom=dimitrov@technology.de Received: from [192.168.2.100] ([87.128.5.8]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.183]) with ESMTPSA (Nemesis) id 1MPoPd-1lNmXV0yMF-00Mput for ; Mon, 18 Jan 2021 18:43:02 +0100 From: "Dr. Todor Dimitrov" Content-Type: multipart/signed; boundary="Apple-Mail=_2F8B2AEB-8489-4B9F-A86E-523355D4E437"; protocol="application/pkcs7-signature"; micalg=sha-256 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.4\)) Subject: Glibc 2.31 - time64 with 64-bit kernel and 32-bit userland Message-Id: <5FDBA7C2-79E2-4B21-98EF-800694DEB500@technology.de> Date: Mon, 18 Jan 2021 18:43:01 +0100 To: libc-help@sourceware.org X-Mailer: Apple Mail (2.3608.120.23.2.4) X-Provags-ID: V03:K1:gAVRSq+Oe+iqGm7u5A+QtVU3iHq3jX5nlvgxxTHrQKWtmiJLG7+ C8ed4TldGXuFglW3OMjXUpizUnyXhq9qA2jDM0WQgWRq/mOaHIuCy4arFqrA52EGhbYLw4d P9qfWZIvCuMa4X4BWjOB5veaiL0GrZ0bZPhpkipSD29qEsJ23cBFDPOsmhBajDaY00POZDI 7X2UQQB4WUfqI1Owbuw4g== X-UI-Out-Filterresults: notjunk:1;V03:K0:LpGZcRG1+4c=:B7m1LT6DzMKEZIXDsUtoMc xv2hYVqi6yNjYVV1OMA2qim9R7joGi/qhPL4RbiMh9lotx2YDw/pKhiI43qxIAEFIcwH/9UZC sjTZhQByCgHhnxLf/v3Iw5TgSk+0hQ1LVyBKAed2D7bCsE5zXJBClJeqVQxFqQoMMIySYLJcW 3ifm72VX5EsdKyio8mLIU1D0yjuLM6FlClgU3tyNBpz+iRfaavaBettTKeeQDLtlh4Kx5HLCr eEikbJQjOpCvwfPvgfOR75ZvTo01NBI1NdOOIhsUNfRcBxI/RD9c7QF+Uw7baPiQ9rd4bLW21 UTn8b8cElqFpih9gyOQ5zMeQ4sCoNPrlWpKg4jUihub9PrSFPfR71Jsue8FeuufGfKF4+807P iJb6PBxsTQw8bFjylnCDPPHFVbB/UheyYnaGWPWTPUmFYxoxyDDUFfmFqya/y18Ztnj6v7auU Bzj1SRy62A== X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-help@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-help mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Jan 2021 17:43:05 -0000 --Apple-Mail=_2F8B2AEB-8489-4B9F-A86E-523355D4E437 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hello, we=E2=80=99ve recently updated an `aarch64` system to Glibc 2.31 and = we=E2=80=99ve started seeing a lot of failing 403 and 407 syscalls. The = kernel version is 4.1.52 and the userland is 32-bit. Looking at the = implementation of `__clock_gettime64`, it seems that we are hitting the = following problem: /* Old 32-bit ABI with possible 64-bit time_t support. */ # ifdef __NR_clock_gettime64 /* Avoid issue a __NR_clock_gettime64 syscall on kernels that do not support 64-bit time_t. */ static int time64_support =3D 1; if (atomic_load_relaxed (&time64_support) !=3D 0) { # ifdef HAVE_CLOCK_GETTIME64_VSYSCALL r =3D INLINE_VSYSCALL (clock_gettime64, 2, clock_id, tp); # else r =3D INLINE_SYSCALL_CALL (clock_gettime64, clock_id, tp); # endif if (r =3D=3D 0 || errno !=3D ENOSYS) return r; atomic_store_relaxed (&time64_support, 0); } # endif `__NR_clock_gettime64` is defined for the 32-bit `arm` architecture but = not for `aarch64`. Is this a known issue? What would be the best way to = overcome it? Thanks in advance, Todor --Apple-Mail=_2F8B2AEB-8489-4B9F-A86E-523355D4E437 Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCCzEw ggUZMIIEAaADAgECAhBDsJhS2IsK8Ont5DUrgVscMA0GCSqGSIb3DQEBCwUAMIGWMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRgwFgYD VQQKEw9TZWN0aWdvIExpbWl0ZWQxPjA8BgNVBAMTNVNlY3RpZ28gUlNBIENsaWVudCBBdXRoZW50 aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMB4XDTIxMDEwNTAwMDAwMFoXDTIyMDEwNTIzNTk1 OVowJzElMCMGCSqGSIb3DQEJARYWZGltaXRyb3ZAdGVjaG5vbG9neS5kZTCCASIwDQYJKoZIhvcN AQEBBQADggEPADCCAQoCggEBANJW6I1as/qNak7axrZdrpGxZB8TuLFXOzv9xxiXVzDtNznIAXiN QpEk1jblG6feDCj4zcP2xQZaOX9sFfcb/Pse1WksjYjE0VyJgOJGRcFDQ6X/VD4M3ZSEqC6oUOOS NYOciW1ZXzQ86tjCTuSTUMHKhj61MVC7UWc6ydIO2/xSo02ZLYbb/YL4+6d5Cu9Aa5YRqbddlwHB iWXYILFOHFarf7wxhkKyuaz0qWm5qgtCqkxvB4gZYs4rzJKcA8gvAQjkd6w83csqluAcmT4n4irw 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