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AJvYcCXsP5muNqDI1uXJ18pgMc+wHhmFDM/Rf3nAkCXzsHaj6tYf/mHmBSue3CoEtgH0ummDgQSPWkkoxw==@kvack.org X-Gm-Message-State: AOJu0YweE6IgzbJwYXig+INi/ctsgdiix/sHWxeaCRUeaiOsWaUWzAJb ZkSP/PMXGaWCtxr8ckMlz08DeBsJKp0LoQoVi/eYs9JnpDEmX9HIFMWeJtN1kbE53rdqluVRUOp oMxqmFFiLewdQdNQci+0zXQ5wbtR3lO4GLvSV X-Google-Smtp-Source: AGHT+IHPeiV99D7daRsKnTWDhstcTDm11fYIwJKMAhI238wQwqTBIaxq0HTyqyGFekhtKbBv8khbPbBFyLen6RpqTh8= X-Received: by 2002:a05:622a:5c6:b0:441:5e6c:426c with SMTP id d75a77b69052e-45508582404mr133381cf.17.1724351164206; Thu, 22 Aug 2024 11:26:04 -0700 (PDT) MIME-Version: 1.0 References: <20240629153128.4660755c@yea> <20240721010926.60efacc3@yea> In-Reply-To: From: Suren Baghdasaryan Date: Thu, 22 Aug 2024 11:25:52 -0700 Message-ID: Subject: Re: Kernel build failure with MEM_ALLOC_PROFILING=y set (Talos II, v6.10-rc5) To: LEROY Christophe Cc: Erhard Furtner , "linuxppc-dev@lists.ozlabs.org" , Andrew Morton , "linux-mm@kvack.org" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: 7496740008 X-Stat-Signature: hnbywy5cps8zqb4sqd9a9trfua3sgc5e X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1724351165-116880 X-HE-Meta: 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 Er3rJQcl aFmnQND/X0UQu1Pp1EYjuwutX6OjTdPv05VVMeVffvrhJ5jN5bXBWTOOtzvR4JWrkgpPR4ezYnaFF7lHTDf/Vdui0VaoujOV2PkVGgjB5Edf3jkDMLWbzx7nLlavHLP4oAaH4mtJi0TNj4EZJDjr9MyGQenssQ2YUO8oXILNMacNMrpk9ao8imEburrVl8I9iFoWVFN3LFmdveJgmXZzyZEAAzZ+VEpKRePb0xtixbulaGQQBcKAxL6NOPMGglduaYnTGvVLAbRsbXfbqZW1LIS8woIy3uXFTexHQn/8My+lVADj1b1y0f90lzVyhLbfHC9ySFKxxX0gozuuVDs61VlxQPxuocQY5423OMM8FtHVHt+MFTfLf3Oww8wLAu/6PzrdTUGYOVVGV0hjuFpcmyjNZh4QdFWbwUv4Vk9VateELUwxbyGoynXnnUFIz0iK2+Q/XcxSUg8KMOUGlmcW5d2jgPti+Urgh2OFMx64UBa9/6rXU2MhO+njgH2J0I89PxtVx/lDd7pJvQaI= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000047, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, Aug 22, 2024 at 11:04=E2=80=AFAM Suren Baghdasaryan wrote: > > On Thu, Aug 22, 2024 at 10:18=E2=80=AFAM LEROY Christophe > wrote: > > > > > > > > Le 21/07/2024 =C3=A0 01:09, Erhard Furtner a =C3=A9crit : > > > [Vous ne recevez pas souvent de courriers de erhard_f@mailbox.org. D?= couvrez pourquoi ceci est important ? https://aka.ms/LearnAboutSenderIdenti= fication ] > > > > > > On Sat, 29 Jun 2024 15:31:28 +0200 > > > Erhard Furtner wrote: > > > > > >> I get a build failure on v6.10-rc5 on my Talos II when MEM_ALLOC_PRO= FILING=3Dy is enabled: > > >> > > >> [...] > > >> LD [M] fs/xfs/xfs.o > > >> LD [M] fs/bcachefs/bcachefs.o > > >> AR built-in.a > > >> AR vmlinux.a > > >> LD vmlinux.o > > >> OBJCOPY modules.builtin.modinfo > > >> GEN modules.builtin > > >> GEN .vmlinux.objs > > >> MODPOST Module.symvers > > >> ERROR: modpost: "page_ext_get" [arch/powerpc/kvm/kvm-hv.ko] undefine= d! > > >> ERROR: modpost: "mem_alloc_profiling_key" [arch/powerpc/kvm/kvm-hv.k= o] undefined! > > >> ERROR: modpost: "page_ext_put" [arch/powerpc/kvm/kvm-hv.ko] undefine= d! > > >> make[2]: *** [scripts/Makefile.modpost:145: Module.symvers] Fehler 1 > > >> make[1]: *** [/usr/src/linux-stable/Makefile:1886: modpost] Fehler 2 > > >> make: *** [Makefile:240: __sub-make] Fehler 2 > > >> > > >> Same .config builds fine without MEM_ALLOC_PROFILING set. Kernel .co= nfig attached. > > > > > > Build problem still there on now released v6.10 with MEM_ALLOC_PROFIL= ING=3Dy. > > > > > > Can't bisect as build with MEM_ALLOC_PROFILING fails since it's intro= duction in v6.10-rc1. > > > > > > > I guess those three functions are missing EXPORT_SYMBOL_GPL() tagging. > > The issue should have been fixed by > https://lore.kernel.org/all/20240717181239.2510054-1-surenb@google.com/ > patchset. I probably forgot to CC stable@ for these changes. Let me > check and follow up. The issue is fixed by the patch titled "alloc_tag: outline and export free_reserved_page()" which has b3bebe44306e SHA in Linus' tree and first appears in v6.10.3 with SHA 4a9a52b70cce. > Thanks, > Suren. > > > > > Christophe