JBD2: Ignoring recovery information on journal ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode. ====================================================== WARNING: possible circular locking dependency detected 6.14.0-rc6-syzkaller-00003-g4d872d51bc9d #0 Not tainted ------------------------------------------------------ syz-executor326/5305 is trying to acquire lock: ffff888044b59800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline] ffff888044b59800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 but task is already holding lock: ffff888044b986f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 fs/ocfs2/xattr.c:3583 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #5 (&oi->ip_xattr_sem){++++}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_init_acl+0x397/0x930 fs/ocfs2/acl.c:366 ocfs2_mknod+0x1c05/0x2b30 fs/ocfs2/namei.c:410 ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:673 vfs_create+0x23c/0x3d0 fs/namei.c:3350 do_mknodat+0x447/0x5b0 fs/namei.c:4241 __do_sys_mknod fs/namei.c:4274 [inline] __se_sys_mknod fs/namei.c:4272 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4272 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #4 (jbd2_handle){.+.+}-{0:0}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 start_this_handle+0x1eb4/0x2110 fs/jbd2/transaction.c:448 jbd2__journal_start+0x2da/0x5d0 fs/jbd2/transaction.c:505 jbd2_journal_start+0x29/0x40 fs/jbd2/transaction.c:544 ocfs2_start_trans+0x3c9/0x700 fs/ocfs2/journal.c:352 ocfs2_modify_bh+0xed/0x4d0 fs/ocfs2/quota_local.c:101 ocfs2_local_read_info+0x158f/0x19f0 fs/ocfs2/quota_local.c:771 dquot_load_quota_sb+0x762/0xbb0 fs/quota/dquot.c:2459 dquot_load_quota_inode+0x320/0x600 fs/quota/dquot.c:2496 ocfs2_enable_quotas+0x169/0x450 fs/ocfs2/super.c:930 ocfs2_fill_super+0x5ce8/0x74d0 fs/ocfs2/super.c:1140 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&journal->j_trans_barrier){.+.+}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_read+0xb1/0xa40 kernel/locking/rwsem.c:1524 ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 ocfs2_modify_bh+0xed/0x4d0 fs/ocfs2/quota_local.c:101 ocfs2_local_read_info+0x158f/0x19f0 fs/ocfs2/quota_local.c:771 dquot_load_quota_sb+0x762/0xbb0 fs/quota/dquot.c:2459 dquot_load_quota_inode+0x320/0x600 fs/quota/dquot.c:2496 ocfs2_enable_quotas+0x169/0x450 fs/ocfs2/super.c:930 ocfs2_fill_super+0x5ce8/0x74d0 fs/ocfs2/super.c:1140 get_tree_bdev_flags+0x48c/0x5c0 fs/super.c:1636 vfs_get_tree+0x90/0x2b0 fs/super.c:1814 do_new_mount+0x2be/0xb40 fs/namespace.c:3560 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4088 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (sb_internal#2){.+.+}-{0:0}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1785 [inline] sb_start_intwrite include/linux/fs.h:1968 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:685 [inline] ocfs2_reserve_suballoc_bits+0x9f6/0x4e70 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2837 [inline] ocfs2_extend_dir+0xdf9/0x51a0 fs/ocfs2/dir.c:3199 ocfs2_prepare_dir_for_insert+0x3679/0x5fa0 fs/ocfs2/dir.c:4304 ocfs2_mknod+0xcaf/0x2b30 fs/ocfs2/namei.c:294 ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:673 vfs_create+0x23c/0x3d0 fs/namei.c:3350 do_mknodat+0x447/0x5b0 fs/namei.c:4241 __do_sys_mknod fs/namei.c:4274 [inline] __se_sys_mknod fs/namei.c:4272 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4272 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#3){+.+.}-{4:4}: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:877 [inline] ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 ocfs2_reserve_cluster_bitmap_bits fs/ocfs2/suballoc.c:1132 [inline] ocfs2_reserve_clusters_with_limit+0x3dd/0xb60 fs/ocfs2/suballoc.c:1177 ocfs2_block_group_alloc fs/ocfs2/suballoc.c:674 [inline] ocfs2_reserve_suballoc_bits+0x9d6/0x4e70 fs/ocfs2/suballoc.c:832 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_expand_inline_dir fs/ocfs2/dir.c:2837 [inline] ocfs2_extend_dir+0xdf9/0x51a0 fs/ocfs2/dir.c:3199 ocfs2_prepare_dir_for_insert+0x3679/0x5fa0 fs/ocfs2/dir.c:4304 ocfs2_mknod+0xcaf/0x2b30 fs/ocfs2/namei.c:294 ocfs2_create+0x1ab/0x470 fs/ocfs2/namei.c:673 vfs_create+0x23c/0x3d0 fs/namei.c:3350 do_mknodat+0x447/0x5b0 fs/namei.c:4241 __do_sys_mknod fs/namei.c:4274 [inline] __se_sys_mknod fs/namei.c:4272 [inline] __x64_sys_mknod+0x8c/0xa0 fs/namei.c:4272 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 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:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:877 [inline] ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3b9/0x8f0 fs/ocfs2/xattr.c:3277 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3634 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234 vfs_setxattr+0x221/0x430 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x2af/0x430 fs/xattr.c:665 path_setxattrat+0x440/0x510 fs/xattr.c:713 __do_sys_setxattr fs/xattr.c:747 [inline] __se_sys_setxattr fs/xattr.c:743 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:743 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 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 --> jbd2_handle --> &oi->ip_xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_xattr_sem); lock(jbd2_handle); lock(&oi->ip_xattr_sem); lock(&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#2); *** DEADLOCK *** 3 locks held by syz-executor326/5305: #0: ffff8880122dc420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:547 #1: ffff888044b989c0 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:877 [inline] #1: ffff888044b989c0 (&sb->s_type->i_mutex_key#15){+.+.}-{4:4}, at: vfs_setxattr+0x1e1/0x430 fs/xattr.c:320 #2: ffff888044b986f8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x633/0x1930 fs/ocfs2/xattr.c:3583 stack backtrace: CPU: 0 UID: 0 PID: 5305 Comm: syz-executor326 Not tainted 6.14.0-rc6-syzkaller-00003-g4d872d51bc9d #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2076 check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208 check_prev_add kernel/locking/lockdep.c:3163 [inline] check_prevs_add kernel/locking/lockdep.c:3282 [inline] validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851 down_write+0x99/0x220 kernel/locking/rwsem.c:1577 inode_lock include/linux/fs.h:877 [inline] ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 ocfs2_reserve_new_metadata_blocks+0x41c/0x9c0 fs/ocfs2/suballoc.c:982 ocfs2_init_xattr_set_ctxt+0x3b9/0x8f0 fs/ocfs2/xattr.c:3277 ocfs2_xattr_set+0xf4e/0x1930 fs/ocfs2/xattr.c:3634 __vfs_setxattr+0x468/0x4a0 fs/xattr.c:200 __vfs_setxattr_noperm+0x12e/0x660 fs/xattr.c:234 vfs_setxattr+0x221/0x430 fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] filename_setxattr+0x2af/0x430 fs/xattr.c:665 path_setxattrat+0x440/0x510 fs/xattr.c:713 __do_sys_setxattr fs/xattr.c:747 [inline] __se_sys_setxattr fs/xattr.c:743 [inline] __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:743 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2a220e6b59 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe8828a9e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f2a221338f8 RCX: 00007f2a220e6b59 RDX: 0000400000000680 RSI: 0000400000000140 RDI: 0000400000000580 RBP: 00007f2a2215e5f0 R08: 0000000000000001 R09: 000055558588d4c0 R10: 0000000000000037 R11: 0000000000000246 R12: 00007ffe8828aa10 R13: 00007ffe8828ac38 R14: 431bde82d7b634db R15: 00007f2a2212f03b syz-executor326 (5305) used greatest stack depth: 17016 bytes left