ocfs2: Mounting device (7,1) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.1.26/4556 is trying to acquire lock: ffff88805586b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] ffff88805586b488 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}, at: ocfs2_del_inode_from_orphan+0x12b/0x7b0 fs/ocfs2/namei.c:2713 but task is already holding lock: ffff88805586c2c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] ffff88805586c2c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4810 fs/ocfs2/suballoc.c:782 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}: down_write+0x36/0x60 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ocfs2_reserve_suballoc_bits+0x16a/0x4810 fs/ocfs2/suballoc.c:782 ocfs2_reserve_new_metadata_blocks+0x412/0x9a0 fs/ocfs2/suballoc.c:978 ocfs2_mknod+0x11e5/0x2580 fs/ocfs2/namei.c:347 ocfs2_mkdir+0x1b6/0x4b0 fs/ocfs2/namei.c:657 vfs_mkdir+0x386/0x570 fs/namei.c:4114 do_mkdirat+0x1d8/0x440 fs/namei.c:4139 __do_sys_mkdir fs/namei.c:4159 [inline] __se_sys_mkdir fs/namei.c:4157 [inline] __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4157 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{3:3}: down_write+0x36/0x60 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ocfs2_remove_inode fs/ocfs2/inode.c:655 [inline] ocfs2_wipe_inode fs/ocfs2/inode.c:818 [inline] ocfs2_delete_inode fs/ocfs2/inode.c:1079 [inline] ocfs2_evict_inode+0x1e90/0x45e0 fs/ocfs2/inode.c:1219 evict+0x4b6/0x8b0 fs/inode.c:705 d_delete_notify include/linux/fsnotify.h:267 [inline] vfs_rmdir+0x374/0x4a0 fs/namei.c:4212 do_rmdir+0x29a/0x5c0 fs/namei.c:4260 __do_sys_rmdir fs/namei.c:4279 [inline] __se_sys_rmdir fs/namei.c:4277 [inline] __x64_sys_rmdir+0x45/0x50 fs/namei.c:4277 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{3:3}: check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x2c92/0x7bd0 kernel/locking/lockdep.c:5049 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662 down_write+0x36/0x60 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ocfs2_del_inode_from_orphan+0x12b/0x7b0 fs/ocfs2/namei.c:2713 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2407 [inline] ocfs2_dio_end_io+0x1074/0x13f0 fs/ocfs2/aops.c:2446 dio_complete+0x249/0x710 fs/direct-io.c:271 __blockdev_direct_IO+0x2e15/0x34c0 fs/direct-io.c:1320 ocfs2_direct_IO+0x233/0x2a0 fs/ocfs2/aops.c:2483 generic_file_direct_write+0x112/0x330 mm/filemap.c:3787 __generic_file_write_iter+0x15f/0x2a0 mm/filemap.c:3945 ocfs2_file_write_iter+0x1731/0x1fc0 fs/ocfs2/file.c:2469 do_iter_readv_writev fs/read_write.c:-1 [inline] do_iter_write+0x638/0xb10 fs/read_write.c:861 iter_file_splice_write+0x6be/0xcf0 fs/splice.c:685 do_splice_from fs/splice.c:763 [inline] direct_splice_actor+0xe1/0x130 fs/splice.c:950 splice_direct_to_actor+0x4b8/0xbd0 fs/splice.c:896 do_splice_direct+0x1ce/0x2f0 fs/splice.c:1002 do_sendfile+0x51b/0xe20 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x141/0x1a0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 other info that might help us debug this: Chain exists of: &ocfs2_sysfile_lock_key[args->fi_sysfile_type] --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2 --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]); *** DEADLOCK *** 3 locks held by syz.1.26/4556: #0: ffff88807b3fe460 (sb_writers#16){.+.+}-{0:0}, at: do_sendfile+0x4f6/0xe20 fs/read_write.c:1254 #1: ffff888055b29808 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #1: ffff888055b29808 (&sb->s_type->i_mutex_key#23){+.+.}-{3:3}, at: ocfs2_file_write_iter+0x45a/0x1fc0 fs/ocfs2/file.c:2399 #2: ffff88805586c2c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff88805586c2c8 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{3:3}, at: ocfs2_reserve_suballoc_bits+0x16a/0x4810 fs/ocfs2/suballoc.c:782 stack backtrace: CPU: 1 PID: 4556 Comm: syz.1.26 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106 check_noncircular+0x296/0x330 kernel/locking/lockdep.c:2170 check_prev_add kernel/locking/lockdep.c:3090 [inline] check_prevs_add kernel/locking/lockdep.c:3209 [inline] validate_chain kernel/locking/lockdep.c:3825 [inline] __lock_acquire+0x2c92/0x7bd0 kernel/locking/lockdep.c:5049 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662 down_write+0x36/0x60 kernel/locking/rwsem.c:1573 inode_lock include/linux/fs.h:758 [inline] ocfs2_del_inode_from_orphan+0x12b/0x7b0 fs/ocfs2/namei.c:2713 ocfs2_dio_end_io_write fs/ocfs2/aops.c:2407 [inline] ocfs2_dio_end_io+0x1074/0x13f0 fs/ocfs2/aops.c:2446 dio_complete+0x249/0x710 fs/direct-io.c:271 __blockdev_direct_IO+0x2e15/0x34c0 fs/direct-io.c:1320 ocfs2_direct_IO+0x233/0x2a0 fs/ocfs2/aops.c:2483 generic_file_direct_write+0x112/0x330 mm/filemap.c:3787 __generic_file_write_iter+0x15f/0x2a0 mm/filemap.c:3945 ocfs2_file_write_iter+0x1731/0x1fc0 fs/ocfs2/file.c:2469 do_iter_readv_writev fs/read_write.c:-1 [inline] do_iter_write+0x638/0xb10 fs/read_write.c:861 iter_file_splice_write+0x6be/0xcf0 fs/splice.c:685 do_splice_from fs/splice.c:763 [inline] direct_splice_actor+0xe1/0x130 fs/splice.c:950 splice_direct_to_actor+0x4b8/0xbd0 fs/splice.c:896 do_splice_direct+0x1ce/0x2f0 fs/splice.c:1002 do_sendfile+0x51b/0xe20 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x141/0x1a0 fs/read_write.c:1309 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe33799ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe338915028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe337c15fa0 RCX: 00007fe33799ce59 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000006 RBP: 00007fe337a32e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000080000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe337c16038 R14: 00007fe337c15fa0 R15: 00007ffe4f8e46f8 syz.1.26 (4556) used greatest stack depth: 18432 bytes left