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[209.85.167.49]) by smtp.gmail.com with ESMTPSA id n5sm2224820lfh.173.2021.03.30.09.11.39 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 30 Mar 2021 09:11:40 -0700 (PDT) Received: by mail-lf1-f49.google.com with SMTP id b4so24613255lfi.6 for ; Tue, 30 Mar 2021 09:11:39 -0700 (PDT) X-Received: by 2002:ac2:4250:: with SMTP id m16mr19284588lfl.40.1617120699723; Tue, 30 Mar 2021 09:11:39 -0700 (PDT) MIME-Version: 1.0 References: <05dc921e-da71-4e71-6132-736eccd35680@wanyeetech.com> In-Reply-To: <05dc921e-da71-4e71-6132-736eccd35680@wanyeetech.com> From: Linus Torvalds Date: Tue, 30 Mar 2021 09:11:23 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: exec error: BUG: Bad rss-counter To: Zhou Yanjie Cc: Ilya Lipnitskiy , "Eric W. Biederman" , Linux-MM , Linux Kernel Mailing List , linux-fsdevel , Kees Cook , Christoph Hellwig Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: B3ED5E0011E6 X-Stat-Signature: 1bp3zc11eabkqki4ods311kujmh4m985 Received-SPF: none (linuxfoundation.org>: No applicable sender policy available) receiver=imf05; identity=mailfrom; envelope-from=""; helo=mail-lf1-f53.google.com; client-ip=209.85.167.53 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1617120702-238192 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Mar 29, 2021 at 9:56 PM Zhou Yanjie wro= te: > > On 2021/3/29 =E4=B8=8A=E5=8D=8810:48, Ilya Lipnitskiy wrote: > > > > Try: > > diff --git a/mm/memory.c b/mm/memory.c > > index c8e357627318..1fd753245369 100644 > > --- a/mm/memory.c > > +++ b/mm/memory.c > > @@ -166,7 +166,7 @@ static int __init init_zero_pfn(void) > > zero_pfn =3D page_to_pfn(ZERO_PAGE(0)); > > return 0; > > } > > -core_initcall(init_zero_pfn); > > +early_initcall(init_zero_pfn); > > It works, thanks! Looks good to me - init_zero_pfn() can be called early, because it depends on paging_init() will should have happened long before any initcalls in setup_arch(). Ilya, mind sending a signed-off version with a nice commit message, and I'll apply it. Linus