From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f42.google.com (mail-ot1-f42.google.com [209.85.210.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0BDA47F for ; Sat, 24 Sep 2022 07:29:12 +0000 (UTC) Received: by mail-ot1-f42.google.com with SMTP id l7-20020a056830154700b0065563d564dfso1392678otp.0 for ; Sat, 24 Sep 2022 00:29:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:from:to:cc:subject:date; bh=ZsVr0q7yabDdKFmE4b0RvYJDpC4ReAh7J6+IaRkZIac=; b=MgP3Bi14j1EF47j8QRIFn8p0mfiL4/3LY6SQNRqnp1QBkgKiPN0SgFnSU1m6htUBMH q9DRtpuc86QAspRW4NWxak+QLSzUG+L+hmdnFEjJZ9Ueaq/JfM2nSD/K9CWPOZzyEU9i fpyjZIXHufF3pdQI4jcY2Z8OEomcx4fN99nFQejM3QptJwSd3KGiAxwTnT/4C6dPD1dp luG4+GaWZbWvbPC2QgUw/zZu/wYeR/F/Br/TbjMxn98k9YY0KTSSrhkpO/HImWNVduMs 6xnZKp0W9GtlRhzsUiBtzO5kj9ZO7/9IfHbzVu4nQFX8QUvHJCWUPScUyKnfE9STBnzq QrSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=mime-version:references:message-id:in-reply-to:subject:cc:to:from :date:x-gm-message-state:from:to:cc:subject:date; bh=ZsVr0q7yabDdKFmE4b0RvYJDpC4ReAh7J6+IaRkZIac=; b=mv0AzKRsVJmZNq4IRQHPticpX33gClyYsv26mcOa091XPmPgHh1MgBFdSzx0Hs26fu TEd12HDffTUtN6ip/fT2Z+BxAS7CfV+oYOjLcLQpfBuO1HKRtbof7/+aEh0JDhu/nWKr Fa/6+TcbtH/6fk5hnUccJgWLe7TlCn+Dx79ArwqdcOQ55rTRoX6n+XWcbMGJTMM3McaU zNG+wmL9EyhMYV0foYTmSL1KE72Uexwn6K7V/S5xtrnm/ZxyZZKI2TLoqtEaXnxZBagt f787a/qe/vyC4CV0ogvVeW86GBy38BJBUZXHccXSF3i92OnswpqwbMhXbw7nqkWP8/vz 4XFQ== X-Gm-Message-State: ACrzQf22fRs2JEIG/iZdHheT1qOudjonQ9pT96CDHW5nNHu3QV9PGqnB rz0WNu9YnI72od1ik7FJMlW0ZQ== X-Google-Smtp-Source: AMsMyM7rHX9avXVvGti6b14/UhSMtpCFTnD4H/T7tGZQ0DnOKU/conEyd8/+GV2Sa0mhjuKYTnQ/KQ== X-Received: by 2002:a9d:150:0:b0:659:f778:3b90 with SMTP id 74-20020a9d0150000000b00659f7783b90mr5552597otu.183.1664004551986; Sat, 24 Sep 2022 00:29:11 -0700 (PDT) Received: from ripple.attlocal.net (172-10-233-147.lightspeed.sntcca.sbcglobal.net. [172.10.233.147]) by smtp.gmail.com with ESMTPSA id m9-20020a056870a40900b0011f390fdb0asm5883375oal.12.2022.09.24.00.29.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Sep 2022 00:29:11 -0700 (PDT) Date: Sat, 24 Sep 2022 00:28:52 -0700 (PDT) From: Hugh Dickins X-X-Sender: hugh@ripple.attlocal.net To: Nathan Chancellor cc: Hugh Dickins , Mike Kravetz , Peter Xu , Axel Rasmussen , Yang Shi , Matthew Wilcox , syzbot , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, llvm@lists.linux.dev, ndesaulniers@google.com, songmuchun@bytedance.com, syzkaller-bugs@googlegroups.com, trix@redhat.com Subject: Re: [syzbot] general protection fault in PageHeadHuge In-Reply-To: Message-ID: References: <0000000000006c300705e95a59db@google.com> <7693a84-bdc2-27b5-2695-d0fe8566571f@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Fri, 23 Sep 2022, Nathan Chancellor wrote: > On Fri, Sep 23, 2022 at 05:14:38PM -0700, Hugh Dickins wrote: > > > > But me, I cannot even get the latest linux-next to boot: next job. > > Maybe I can save you a bisect: > > https://lore.kernel.org/all/Yy4GoMMwiBaq3oJf@dev-arch.thelio-3990X/ Many thanks Nathan, yes, you did save me a bisect with that link. And I managed to get a patch to revert the badness, I'll reply there on that thread now. Hugh