ocfs2: Mounting device (7,5) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.14.0-syzkaller-13524-gf4d2ef48250a #0 Not tainted ------------------------------------------------------ syz.5.1366/9478 is trying to acquire lock: ffff888054c8c2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] ffff888054c8c2c0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_remove_inode+0x15b/0x8a0 fs/ocfs2/inode.c:669 but task is already holding lock: ffff888054c8df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] ffff888054c8df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}, at: ocfs2_wipe_inode+0x2d5/0x1210 fs/ocfs2/inode.c:790 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:867 [inline] ocfs2_del_inode_from_orphan+0x112/0x700 fs/ocfs2/namei.c:2727 ocfs2_dio_end_io_write+0x2cb/0xf30 fs/ocfs2/aops.c:2303 ocfs2_dio_end_io+0x136/0x2c0 fs/ocfs2/aops.c:2401 dio_complete+0x224/0x970 fs/direct-io.c:281 __blockdev_direct_IO+0x33eb/0x4080 fs/direct-io.c:1303 ocfs2_direct_IO+0x263/0x360 fs/ocfs2/aops.c:2438 generic_file_direct_write+0x19a/0x410 mm/filemap.c:4036 __generic_file_write_iter+0x11b/0x240 mm/filemap.c:4205 ocfs2_file_write_iter+0xbc4/0x21b0 fs/ocfs2/file.c:2469 do_iter_readv_writev+0x657/0x950 fs/read_write.c:825 vfs_writev+0x353/0xdc0 fs/read_write.c:1055 do_pwritev+0x1af/0x270 fs/read_write.c:1151 __do_sys_pwritev2 fs/read_write.c:1209 [inline] __se_sys_pwritev2 fs/read_write.c:1200 [inline] __x64_sys_pwritev2+0xef/0x160 fs/read_write.c:1200 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&ocfs2_quota_ip_alloc_sem_key){++++}-{4:4}: down_write+0x92/0x200 kernel/locking/rwsem.c:1577 ocfs2_create_local_dquot+0x157/0xb30 fs/ocfs2/quota_local.c:1232 ocfs2_acquire_dquot+0x626/0xb00 fs/ocfs2/quota_global.c:883 dqget+0x693/0x1180 fs/quota/dquot.c:977 __dquot_initialize+0x586/0xd50 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0xe7/0x1b0 fs/ocfs2/namei.c:202 ocfs2_mknod+0x974/0x2540 fs/ocfs2/namei.c:310 ocfs2_mkdir+0x17c/0x490 fs/ocfs2/namei.c:656 vfs_mkdir+0x593/0x8c0 fs/namei.c:4324 do_mkdirat+0x304/0x3e0 fs/namei.c:4357 __do_sys_mkdirat fs/namei.c:4374 [inline] __se_sys_mkdirat fs/namei.c:4372 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4372 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&dquot->dq_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 wait_on_dquot fs/quota/dquot.c:354 [inline] dqget+0x5f1/0x1180 fs/quota/dquot.c:972 __dquot_initialize+0x586/0xd50 fs/quota/dquot.c:1505 ocfs2_get_init_inode+0xe7/0x1b0 fs/ocfs2/namei.c:202 ocfs2_mknod+0x974/0x2540 fs/ocfs2/namei.c:310 ocfs2_mkdir+0x17c/0x490 fs/ocfs2/namei.c:656 vfs_mkdir+0x593/0x8c0 fs/namei.c:4324 do_mkdirat+0x304/0x3e0 fs/namei.c:4357 __do_sys_mkdirat fs/namei.c:4374 [inline] __se_sys_mkdirat fs/namei.c:4372 [inline] __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4372 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 down_write+0x92/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:867 [inline] ocfs2_remove_inode+0x15b/0x8a0 fs/ocfs2/inode.c:669 ocfs2_wipe_inode+0x446/0x1210 fs/ocfs2/inode.c:832 ocfs2_delete_inode fs/ocfs2/inode.c:1093 [inline] ocfs2_evict_inode+0x6e0/0x1680 fs/ocfs2/inode.c:1230 evict+0x3e6/0x920 fs/inode.c:810 iput_final fs/inode.c:1898 [inline] iput fs/inode.c:1924 [inline] iput+0x521/0x880 fs/inode.c:1910 do_unlinkat+0x518/0x6a0 fs/namei.c:4615 __do_sys_unlink fs/namei.c:4654 [inline] __se_sys_unlink fs/namei.c:4652 [inline] __x64_sys_unlink+0xc5/0x110 fs/namei.c:4652 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2 --> &ocfs2_quota_ip_alloc_sem_key --> &ocfs2_sysfile_lock_key[args->fi_sysfile_type] Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]); lock(&ocfs2_quota_ip_alloc_sem_key); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2); *** DEADLOCK *** 3 locks held by syz.5.1366/9478: #0: ffff88805ac1a420 (sb_writers#17){.+.+}-{0:0}, at: do_unlinkat+0x1bd/0x6a0 fs/namei.c:4591 #1: ffff888050d0cbd0 (&osb->nfs_sync_rwlock){.+.+}-{4:4}, at: ocfs2_nfs_sync_lock+0xe4/0x2e0 fs/ocfs2/dlmglue.c:2875 #2: ffff888054c8df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #2: ffff888054c8df40 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]){+.+.}-{4:4}, at: ocfs2_wipe_inode+0x2d5/0x1210 fs/ocfs2/inode.c:790 stack backtrace: CPU: 0 UID: 0 PID: 9478 Comm: syz.5.1366 Not tainted 6.14.0-syzkaller-13524-gf4d2ef48250a #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2079 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2211 check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 down_write+0x92/0x200 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:867 [inline] ocfs2_remove_inode+0x15b/0x8a0 fs/ocfs2/inode.c:669 ocfs2_wipe_inode+0x446/0x1210 fs/ocfs2/inode.c:832 ocfs2_delete_inode fs/ocfs2/inode.c:1093 [inline] ocfs2_evict_inode+0x6e0/0x1680 fs/ocfs2/inode.c:1230 evict+0x3e6/0x920 fs/inode.c:810 iput_final fs/inode.c:1898 [inline] iput fs/inode.c:1924 [inline] iput+0x521/0x880 fs/inode.c:1910 do_unlinkat+0x518/0x6a0 fs/namei.c:4615 __do_sys_unlink fs/namei.c:4654 [inline] __se_sys_unlink fs/namei.c:4652 [inline] __x64_sys_unlink+0xc5/0x110 fs/namei.c:4652 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f193058d169 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1931455038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007f19307a5fa0 RCX: 00007f193058d169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000240 RBP: 00007f193060e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f19307a5fa0 R15: 00007ffc08fcc8f8