From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBCB8C433EF for ; Tue, 1 Mar 2022 17:41:30 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 61C0B8D0002; Tue, 1 Mar 2022 12:41:30 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5CB6F8D0001; Tue, 1 Mar 2022 12:41:30 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4E1538D0002; Tue, 1 Mar 2022 12:41:30 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0129.hostedemail.com [216.40.44.129]) by kanga.kvack.org (Postfix) with ESMTP id 3BCA58D0001 for ; Tue, 1 Mar 2022 12:41:30 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id E5069181953E8 for ; Tue, 1 Mar 2022 17:41:29 +0000 (UTC) X-FDA: 79196534298.24.4F5D4D1 Received: from mail-il1-f171.google.com (mail-il1-f171.google.com [209.85.166.171]) by imf21.hostedemail.com (Postfix) with ESMTP id 7F2CD1C0010 for ; Tue, 1 Mar 2022 17:41:29 +0000 (UTC) Received: by mail-il1-f171.google.com with SMTP id q4so13182672ilt.0 for ; Tue, 01 Mar 2022 09:41:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=rzZvVi922T75isz8NxHRDBEd/bacTDleNJgeNaOuuwU=; b=A+QN9Lw51KgIirVm/jd5r7h5v7DlVunCQPZT/vHkFC84QQKV3AiAP2dSuxvnBoZlkp dJxvboW3aUGiJDhyqt6+Junjhk1PioF77cuhqWA1GA0wfulSqAlVbLXZQLnmJyoDHkDT Jfo/RFrUXhpkVOgYzlFLkTI2bE6NvzjkEDX4QFEHgFcacDOhTE4bvLeQ8CHckQJ8zsEg rlVOE2UyWQJw9VCxhMXFluoQBGEUd/5VUhfFq8E1+rQl4ZDPWNZ/bd6qK7IH2JsUVZWE dgmg60qm6kW0W0+ay6GXmD3vf0XD65z+PipAUsNARFOskfctpcX4LIvyhrbzcVhk1lrD bu6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=rzZvVi922T75isz8NxHRDBEd/bacTDleNJgeNaOuuwU=; b=E1fxaa3sXHsj/tERLRatBSukWxlbVY0DzS5t4MvYDwmFrqNlxAerzFycdKiJN22A7s 51b9FgamzW47JX451KwS+3ybX9jOJBeXFfx44949h5vPes5vm8gFXW2eRuD6X0X9DYmT NKx9Oe/KmG0x1i7++v0zHes82aL2pK5G9fD9bpyLBwlY6ZBVtJQCJvHWDQITi64WuYD+ 83VnEEkkXaVzlmEESteyQXb4T0tZ9biW6/f64Gp72Ogotaa6q9pxj7h5WwUN0C8Wi2nX QGdv+AME/RvbKySv5Pq+Q58CsCwd8alENTDUbOW+JAUmyTKVwKmfHVetugfjaViFq3o0 A8SA== X-Gm-Message-State: AOAM531BbgXgG/oZ8sNSrrabxKlSxxSwDCZc/gTvz+LD25WmBpRyKdlT u6LMOAX3d4BfBPIczUTk0ErRcH4A9S/iNzHYhzzl2g== X-Google-Smtp-Source: ABdhPJzfHut8l12qBtXsJUlkKX/JS6cw27zCLOfjR4fffTT7liHEJdyPjBXsQDUX28hyiq8uF4a86VZs81Ml15mp6Vo= X-Received: by 2002:a92:c242:0:b0:2c2:857c:b695 with SMTP id k2-20020a92c242000000b002c2857cb695mr24190484ilo.208.1646156488694; Tue, 01 Mar 2022 09:41:28 -0800 (PST) MIME-Version: 1.0 References: <0000000000009ee0ca05d9288b83@google.com> <20220301093348.0eb7071cab3d8f0e49613fdf@linux-foundation.org> In-Reply-To: <20220301093348.0eb7071cab3d8f0e49613fdf@linux-foundation.org> From: Aleksandr Nogikh Date: Tue, 1 Mar 2022 18:41:17 +0100 Message-ID: Subject: Re: [syzbot] kernel BUG in hugepage_add_anon_rmap To: Andrew Morton Cc: syzbot , LKML , linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 7F2CD1C0010 X-Stat-Signature: m8cn5rsf365jqf4rf4ne7dotf59q4gw1 X-Rspam-User: Authentication-Results: imf21.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=A+QN9Lw5; spf=pass (imf21.hostedemail.com: domain of nogikh@google.com designates 209.85.166.171 as permitted sender) smtp.mailfrom=nogikh@google.com; dmarc=pass (policy=reject) header.from=google.com X-Rspamd-Server: rspam07 X-HE-Tag: 1646156489-461407 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Mar 1, 2022 at 6:33 PM Andrew Morton wrote: > > On Tue, 01 Mar 2022 05:57:27 -0800 syzbot wrote: > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: 196d330d7fb1 Add linux-next specific files for 20220222 > > This seems to be a relatively old kernel? Yes, syzbot was unfortunately unable to switch to the newer linux-next versions for several days because they triggered the "WARNING in __mod_memcg_lruvec_state" error during boot. https://syzkaller.appspot.com/bug?id=f7421a1372deecbdb46bd6fb35ce84b16024b7f5 Now the problem is gone and syzbot is running the latest 20220301 version. > > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=15b0618a700000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=45b71d0aea81d553 > > dashboard link: https://syzkaller.appspot.com/bug?extid=d7ed29a6231d3747fb31 > > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > > > Unfortunately, I don't have any reproducer for this issue yet. > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+d7ed29a6231d3747fb31@syzkaller.appspotmail.com > > > > ------------[ cut here ]------------ > > kernel BUG at mm/rmap.c:2330! > > BUG_ON(!PageLocked(page)) in hugepage_add_anon_rmap() > > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/20220301093348.0eb7071cab3d8f0e49613fdf%40linux-foundation.org.