JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,7) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.7.11605/2331 is trying to acquire lock: ffff88806cd5dae8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 but task is already holding lock: ffff88803d9a48e0 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:369 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x99/0x450 kernel/locking/rwsem.c:1568 ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:369 ocfs2_mknod+0x162b/0x27b0 fs/ocfs2/namei.c:365 vfs_mknod+0x3a5/0x7f0 fs/namei.c:5120 filename_mknodat+0x5aa/0x7f0 fs/namei.c:5179 __do_sys_mknod fs/namei.c:5207 [inline] __se_sys_mknod fs/namei.c:5204 [inline] __x64_sys_mknod+0x8f/0xc0 fs/namei.c:5204 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (sb_internal#4){.+.+}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x4b7/0x920 fs/ocfs2/journal.c:367 ocfs2_extend_dir+0x630/0x1c00 fs/ocfs2/dir.c:3321 ocfs2_prepare_dx_dir_for_insert.isra.0+0x823/0xfb0 fs/ocfs2/dir.c:4272 ocfs2_prepare_dir_for_insert+0xf2d/0x1770 fs/ocfs2/dir.c:4328 ocfs2_mknod+0x8d4/0x27b0 fs/ocfs2/namei.c:298 ocfs2_create+0xf4/0x450 fs/ocfs2/namei.c:677 lookup_open.isra.0+0xc47/0x11b0 fs/namei.c:4511 open_last_lookups fs/namei.c:4611 [inline] path_openat+0x2291/0x31a0 fs/namei.c:4855 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ocfs2_file_ip_alloc_sem_key){++++}-{4:4}: down_write+0x8b/0x1f0 kernel/locking/rwsem.c:1625 ocfs2_try_remove_refcount_tree+0xa7/0x2f0 fs/ocfs2/refcounttree.c:932 ocfs2_truncate_file+0xb91/0x1820 fs/ocfs2/file.c:522 ocfs2_setattr+0x14b5/0x2690 fs/ocfs2/file.c:1219 notify_change+0xb25/0x1330 fs/attr.c:556 do_truncate+0x1df/0x240 fs/open.c:68 handle_truncate fs/namei.c:4307 [inline] do_open fs/namei.c:4703 [inline] path_openat+0x2a55/0x31a0 fs/namei.c:4858 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&oi->ip_xattr_sem){++++}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825 down_read+0x99/0x450 kernel/locking/rwsem.c:1568 ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 ocfs2_mknod+0x175a/0x27b0 fs/ocfs2/namei.c:414 ocfs2_create+0xf4/0x450 fs/ocfs2/namei.c:677 lookup_open.isra.0+0xc47/0x11b0 fs/namei.c:4511 open_last_lookups fs/namei.c:4611 [inline] path_openat+0x2291/0x31a0 fs/namei.c:4855 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 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: &oi->ip_xattr_sem --> sb_internal#4 --> &journal->j_trans_barrier Possible unsafe locking scenario: CPU0 CPU1 ---- ---- rlock(&journal->j_trans_barrier); lock(sb_internal#4); lock(&journal->j_trans_barrier); rlock(&oi->ip_xattr_sem); *** DEADLOCK *** 8 locks held by syz.7.11605/2331: #0: ffff88808a2b0410 (sb_writers#24){.+.+}-{0:0}, at: open_last_lookups fs/namei.c:4600 [inline] #0: ffff88808a2b0410 (sb_writers#24){.+.+}-{0:0}, at: path_openat+0x9b1/0x31a0 fs/namei.c:4855 #1: ffff88806cd5dda0 (&type->i_mutex_dir_key#31){++++}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #1: ffff88806cd5dda0 (&type->i_mutex_dir_key#31){++++}-{4:4}, at: open_last_lookups fs/namei.c:4608 [inline] #1: ffff88806cd5dda0 (&type->i_mutex_dir_key#31){++++}-{4:4}, at: path_openat+0x220c/0x31a0 fs/namei.c:4855 #2: ffff8880403525a0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #2: ffff8880403525a0 (&ocfs2_sysfile_lock_key[INODE_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11c/0x4b50 fs/ocfs2/suballoc.c:882 #3: ffff888040356ba0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #3: ffff888040356ba0 (&ocfs2_sysfile_lock_key[EXTENT_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x11c/0x4b50 fs/ocfs2/suballoc.c:882 #4: ffff888040186ba0 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1029 [inline] #4: ffff888040186ba0 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0xea/0xbf0 fs/ocfs2/localalloc.c:636 #5: ffff88808a2b0600 (sb_internal#4){.+.+}-{0:0}, at: ocfs2_mknod+0x162b/0x27b0 fs/ocfs2/namei.c:365 #6: ffff88803d9a48e0 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x5c8/0x920 fs/ocfs2/journal.c:369 #7: ffff888028956938 (jbd2_handle#2){.+.+}-{0:0}, at: start_this_handle+0xfaa/0x13a0 fs/jbd2/transaction.c:444 stack backtrace: CPU: 0 UID: 0 PID: 2331 Comm: syz.7.11605 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825 down_read+0x99/0x450 kernel/locking/rwsem.c:1568 ocfs2_init_acl+0x35b/0x840 fs/ocfs2/acl.c:367 ocfs2_mknod+0x175a/0x27b0 fs/ocfs2/namei.c:414 ocfs2_create+0xf4/0x450 fs/ocfs2/namei.c:677 lookup_open.isra.0+0xc47/0x11b0 fs/namei.c:4511 open_last_lookups fs/namei.c:4611 [inline] path_openat+0x2291/0x31a0 fs/namei.c:4855 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_creat fs/open.c:1448 [inline] __se_sys_creat fs/open.c:1442 [inline] __x64_sys_creat+0xcc/0x120 fs/open.c:1442 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f92fef9ce59 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:00007f92ffdcc028 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f92ff215fa0 RCX: 00007f92fef9ce59 RDX: 0000000000000000 RSI: 0000000000000044 RDI: 00002000000009c0 RBP: 00007f92ff032d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f92ff216038 R14: 00007f92ff215fa0 R15: 00007ffdfb3f0038