On Tue, Feb 14, 2023 at 6:52 PM Hillf Danton <hdanton@xxxxxxxx> wrote: > > On Tue, 14 Feb 2023 00:14:42 -0800 > > syzbot has found a reproducer for the following issue on: > > > > HEAD commit: f6feea56f66d Merge tag 'mm-hotfixes-stable-2023-02-13-13-5.. > > git tree: upstream > > console+strace: https://syzkaller.appspot.com/x/log.txt?x=165ee62b480000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=42ba4da8e1e6af9f > > dashboard link: https://syzkaller.appspot.com/bug?extid=f0c4082ce5ebebdac63b > > compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ba7207480000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15fd30d0c80000 > > > > Downloadable assets: > > disk image: https://storage.googleapis.com/syzbot-assets/1ae0143f08d5/disk-f6feea56.raw.xz > > vmlinux: https://storage.googleapis.com/syzbot-assets/18b8a23fa0cb/vmlinux-f6feea56.xz > > kernel image: https://storage.googleapis.com/syzbot-assets/d915f4c5c8c0/bzImage-f6feea56.xz > > mounted in repro: https://storage.googleapis.com/syzbot-assets/1acd3b288433/mount_0.gz > > > > folio_mark_accessed+0x51c/0xf00 mm/swap.c:515 > > Syzbot was launched without MGLRU enabled [1]. > Dmitry could you turn it on by default? Thanks for the heads up! (I should have followed up with Dmitry earlier... doing it now.)
