From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Subject: Re: [syzbot] WARNING in folio_lruvec_lock_irqsave Date: Fri, 24 Jun 2022 23:00:09 -0700 Message-ID: <0000000000003ad3d705e23f66ae@google.com> References: <0000000000004b03c805e2099bf0@google.com> Mime-Version: 1.0 Return-path: In-Reply-To: <0000000000004b03c805e2099bf0-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org> List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org, mhocko-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, roman.gushchin-fxUVXftIFDnyG1zEObXtfA@public.gmane.org, shakeelb-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, songmuchun-EC8Uxl6Npydl57MIdRCFDg@public.gmane.org, syzkaller-bugs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org 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-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org Fixes: cca700a8e695 ("mm: lru: use lruvec lock to serialize memcg changes") For information about bisection process see: https://goo.gl/tpsmEJ#bisection