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Fri, 24 Jun 2022 23:00:09 -0700 (PDT) Date: Fri, 24 Jun 2022 23:00:09 -0700 In-Reply-To: <0000000000004b03c805e2099bf0@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003ad3d705e23f66ae@google.com> Subject: Re: [syzbot] WARNING in folio_lruvec_lock_irqsave From: syzbot To: akpm@linux-foundation.org, cgroups@vger.kernel.org, hannes@cmpxchg.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mhocko@kernel.org, roman.gushchin@linux.dev, shakeelb@google.com, songmuchun@bytedance.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1656136810; a=rsa-sha256; cv=none; b=4mBgfsd4oYprJc3dbSgqE3HlSrXCiffIhDlELDi+s8iByPVTRDPDeMx/uTnsuyfrEY1Yfl 9tU3XHQfJF8WqkureceaBOyW9pUPHRBQn3bQ3QRp2EWLusDm2/BXjIaEY/G85bzI/1KhTK J/8WzMHWS8VCkVc2kJHOCscdwBhY2hk= ARC-Authentication-Results: i=1; imf09.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); 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spf=pass (imf09.hostedemail.com: domain of 3aaS2YgkbAKgaghSITTMZIXXQL.OWWOTMcaMZKWVbMVb.KWU@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.70 as permitted sender) smtp.mailfrom=3aaS2YgkbAKgaghSITTMZIXXQL.OWWOTMcaMZKWVbMVb.KWU@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Rspamd-Server: rspam10 X-Rspam-User: X-HE-Tag: 1656136809-480701 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: syzbot has bisected this issue to: commit cca700a8e695fbe4a647e3a509ac513f05d5740a Author: Muchun Song Date: Tue Jun 21 12:56:58 2022 +0000 mm: lru: use lruvec lock to serialize memcg changes bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15abaf18080000 start commit: ac0ba5454ca8 Add linux-next specific files for 20220622 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=17abaf18080000 console output: https://syzkaller.appspot.com/x/log.txt?x=13abaf18080000 kernel config: https://syzkaller.appspot.com/x/.config?x=12809dacb9e7c5e0 dashboard link: https://syzkaller.appspot.com/bug?extid=ec972d37869318fc3ffb syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d0f470080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1145df0ff00000 Reported-by: syzbot+ec972d37869318fc3ffb@syzkaller.appspotmail.com Fixes: cca700a8e695 ("mm: lru: use lruvec lock to serialize memcg changes") For information about bisection process see: https://goo.gl/tpsmEJ#bisection