On Wed, Oct 23, 2024, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 15e7d45e786a Add linux-next specific files for 20241016 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=1397b240580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=c36416f1c54640c0 > dashboard link: https://syzkaller.appspot.com/bug?extid=4f8d3ac3727ffc0ecd8a > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > > Unfortunately, I don't have any reproducer for this issue yet. > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/cf2ad43c81cc/disk-15e7d45e.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/c85347a66a1c/vmlinux-15e7d45e.xz > kernel image: https://storage.googleapis.com/syzbot-assets/648cf8e59c13/bzImage-15e7d45e.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+4f8d3ac3727ffc0ecd8a@xxxxxxxxxxxxxxxxxxxxxxxxx Yet another bcachefs shutdown problem. #syz set subsystems: bcachefs [ 88.514126][ T5826] bcachefs (loop1): flushing journal and stopping allocators complete, journal seq 4 [ 88.569826][ T5836] EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000. [ 88.618725][ T5826] bcachefs (loop1): clean shutdown complete, journal seq 5 [ 88.807819][ T5826] bcachefs (loop1): marking filesystem clean [ 89.094513][ T5826] bcachefs (loop1): shutdown complete [ 89.339441][ T6085] loop3: detected capacity change from 0 to 32768 [ 89.629580][ T6096] loop4: detected capacity change from 0 to 40427 [ 89.700754][ T6096] F2FS-fs (loop4): build fault injection attr: rate: 771, type: 0x1fffff [ 90.062540][ T6085] XFS (loop3): Mounting V5 Filesystem c496e05e-540d-4c72-b591-04d79d8b4eeb [ 90.081642][ T6096] F2FS-fs (loop4): invalid crc value [ 90.127830][ T6098] tty tty20: ldisc open failed (-12), clearing slot 19 [ 90.438369][ T6096] F2FS-fs (loop4): Found nat_bits in checkpoint [ 90.558422][ T6085] XFS (loop3): Ending clean mount [ 90.619095][ T6115] loop0: detected capacity change from 0 to 128 [ 90.643095][ T6085] XFS (loop3): Unmounting Filesystem c496e05e-540d-4c72-b591-04d79d8b4eeb [ 90.671995][ T6096] F2FS-fs (loop4): Mounted with checkpoint version = 48b305e5 [ 91.300054][ T6117] syz.0.30 (6117): drop_caches: 2 [ 91.503301][ T6118] syz.4.29: attempt to access beyond end of device [ 91.503301][ T6118] loop4: rw=2049, sector=77824, nr_sectors = 144 limit=40427 [ 91.556455][ T6096] F2FS-fs (loop4): inject lock_op in f2fs_trylock_op of f2fs_write_single_data_page+0xd20/0x1bd0 [ 91.604651][ T6096] syz.4.29: attempt to access beyond end of device [ 91.604651][ T6096] loop4: rw=2049, sector=77968, nr_sectors = 112 limit=40427 [ 91.632912][ T6091] ------------[ cut here ]------------ [ 91.638499][ T6091] WARNING: CPU: 0 PID: 6091 at kernel/rcu/srcutree.c:681 cleanup_srcu_struct+0x404/0x4d0
