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Miller" , Hideaki YOSHIFUJI , David Ahern , Jakub Kicinski , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Song Liu , John Fastabend , KP Singh , , , Jiri Olsa , Jesper Dangaard Brouer Subject: Re: linux-next failing build due to missing cubictcp_state symbol Message-ID: <20210506052026.z5zwxnr453bqlsju@kafai-mbp.dhcp.thefacebook.com> References: <20210423175528.GF6564@kitsune.suse.cz> <20210425111545.GL15381@kitsune.suse.cz> <20210426113215.GM15381@kitsune.suse.cz> <20210426121220.GN15381@kitsune.suse.cz> <20210426121401.GO15381@kitsune.suse.cz> <49f84147-bf32-dc59-48e0-f89241cf6264@fb.com> <20210505135612.GZ6564@kitsune.suse.cz> <5a225970-32a2-1617-b264-bc40a2179618@kernel.org> Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline In-Reply-To: <5a225970-32a2-1617-b264-bc40a2179618@kernel.org> X-Originating-IP: [2620:10d:c090:400::5:910f] X-ClientProxiedBy: MW4PR04CA0154.namprd04.prod.outlook.com (2603:10b6:303:85::9) To BY5PR15MB3571.namprd15.prod.outlook.com (2603:10b6:a03:1f6::32) X-MS-Exchange-MessageSentRepresentingType: 1 Received: from kafai-mbp.dhcp.thefacebook.com (2620:10d:c090:400::5:910f) by MW4PR04CA0154.namprd04.prod.outlook.com (2603:10b6:303:85::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4108.25 via Frontend Transport; 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Even then it > > regressed again after 5.12 on arm64: > > Could you try against devel:tools? I've removed the ftrace filter from > dwarves there (sr#890247 to factory). > > > LD vmlinux > > ld: warning: -z relro ignored > > BTFIDS vmlinux > > FAILED unresolved symbol cubictcp_state > > make[1]: *** [/home/abuild/rpmbuild/BUILD/kernel-vanilla-5.12.0.13670.g5e321ded302d/linux-5.12-13670-g5e321ded302d/Makefile:1196: vmlinux] Error 255 > > make: *** [../Makefile:215: __sub-make] Error 2 > > > > Any idea what might be wrong with arm64? Can you also try this pahole patch which removes the ftrace filter: https://lore.kernel.org/dwarves/20210506015824.2335125-1-kafai@fb.com/ I have just cross compiled with aarch64-linux-gcc together with the above pahole patch.