(syz.0.0,5316,0):ocfs2_extend_trans:438 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_insert_path:4181 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_do_insert_extent:4337 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_insert_extent:4759 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_add_clusters_in_btree:4852 ERROR: status = -30 (syz.0.0,5316,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 2 access to buffer! (syz.0.0,5316,0):ocfs2_block_group_clear_bits:2465 ERROR: status = -30 (syz.0.0,5316,0):_ocfs2_free_suballoc_bits:2566 ERROR: status = -30 (syz.0.0,5316,0):_ocfs2_free_clusters:2650 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_write_cluster:1151 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_write_cluster_by_desc:1246 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_write_begin_nolock:1818 ERROR: status = -30 ============================================ WARNING: possible recursive locking detected 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #0 Not tainted -------------------------------------------- syz.0.0/5316 is trying to acquire lock: ffff888040026610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_dquot fs/ocfs2/quota_global.c:679 [inline] ffff888040026610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_mark_dquot_dirty+0x411/0xe00 fs/ocfs2/quota_global.c:949 but task is already holding lock: ffff888040026610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_begin_nolock+0x2bfa/0x5060 fs/ocfs2/aops.c:1768 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(sb_internal#2); lock(sb_internal#2); *** DEADLOCK *** May be due to missing lock nesting notation 8 locks held by syz.0.0/5316: #0: ffff888040026420 (sb_writers#13){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline] #0: ffff888040026420 (sb_writers#13){.+.+}-{0:0}, at: vfs_writev+0x2d1/0xba0 fs/read_write.c:1048 #1: ffff888052c49800 (&sb->s_type->i_mutex_key#21){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #1: ffff888052c49800 (&sb->s_type->i_mutex_key#21){+.+.}-{4:4}, at: ocfs2_file_write_iter+0x445/0x2180 fs/ocfs2/file.c:2399 #2: ffff888052c494a0 (&oi->ip_alloc_sem){++++}-{4:4}, at: ocfs2_dio_wr_get_block+0x96f/0x18d0 fs/ocfs2/aops.c:2223 #3: ffff888052c41800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #3: ffff888052c41800 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#5){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 #4: ffff888011afd100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline] #4: ffff888011afd100 (&ocfs2_sysfile_lock_key[args->fi_sysfile_type]#7){+.+.}-{4:4}, at: ocfs2_reserve_suballoc_bits+0x192/0x4e70 fs/ocfs2/suballoc.c:786 #5: ffff888040026610 (sb_internal#2){.+.+}-{0:0}, at: ocfs2_write_begin_nolock+0x2bfa/0x5060 fs/ocfs2/aops.c:1768 #6: ffff888040a3e4e8 (&journal->j_trans_barrier){.+.+}-{4:4}, at: ocfs2_start_trans+0x3be/0x700 fs/ocfs2/journal.c:350 #7: ffffffff8eaae730 (dquot_srcu){.+.+}-{0:0}, at: srcu_lock_acquire include/linux/srcu.h:158 [inline] #7: ffffffff8eaae730 (dquot_srcu){.+.+}-{0:0}, at: srcu_read_lock include/linux/srcu.h:249 [inline] #7: ffffffff8eaae730 (dquot_srcu){.+.+}-{0:0}, at: __dquot_free_space+0x1f3/0xec0 fs/quota/dquot.c:1901 stack backtrace: CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #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_deadlock_bug+0x483/0x620 kernel/locking/lockdep.c:3037 check_deadlock kernel/locking/lockdep.c:3089 [inline] validate_chain+0x15e2/0x5920 kernel/locking/lockdep.c:3891 __lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5226 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5849 percpu_down_read include/linux/percpu-rwsem.h:51 [inline] __sb_start_write include/linux/fs.h:1725 [inline] sb_start_intwrite include/linux/fs.h:1908 [inline] ocfs2_start_trans+0x2b9/0x700 fs/ocfs2/journal.c:348 ocfs2_write_dquot fs/ocfs2/quota_global.c:679 [inline] ocfs2_mark_dquot_dirty+0x411/0xe00 fs/ocfs2/quota_global.c:949 mark_dquot_dirty fs/quota/dquot.c:370 [inline] mark_all_dquot_dirty+0x101/0x450 fs/quota/dquot.c:410 __dquot_free_space+0x977/0xec0 fs/quota/dquot.c:1928 dquot_free_space_nodirty include/linux/quotaops.h:374 [inline] dquot_free_space+0x1b/0x30 include/linux/quotaops.h:379 ocfs2_write_begin_nolock+0x33d5/0x5060 fs/ocfs2/aops.c:1834 ocfs2_dio_wr_get_block+0xc3b/0x18d0 fs/ocfs2/aops.c:2237 get_more_blocks fs/direct-io.c:648 [inline] do_direct_IO fs/direct-io.c:936 [inline] __blockdev_direct_IO+0x1c87/0x4890 fs/direct-io.c:1243 ocfs2_direct_IO+0x255/0x2c0 fs/ocfs2/aops.c:2464 generic_file_direct_write+0x1e6/0x400 mm/filemap.c:3978 __generic_file_write_iter+0x126/0x230 mm/filemap.c:4142 ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469 do_iter_readv_writev+0x600/0x880 vfs_writev+0x376/0xba0 fs/read_write.c:1050 do_pwritev fs/read_write.c:1146 [inline] __do_sys_pwritev2 fs/read_write.c:1204 [inline] __se_sys_pwritev2+0x196/0x2b0 fs/read_write.c:1195 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: 0033:0x7f6e7cb85d29 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:00007f6e7da44038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f6e7cd76080 RCX: 00007f6e7cb85d29 RDX: 0000000000000001 RSI: 0000000020000240 RDI: 000000000000000f RBP: 00007f6e7cc01aa8 R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000001400 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6e7cd76080 R15: 00007ffecd232a18 (syz.0.0,5316,0):ocfs2_start_trans:357 ERROR: status = -30 OCFS2: abort (device loop0): handle_t *ocfs2_start_trans(struct ocfs2_super *, int): Detected aborted journal On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. (syz.0.0,5316,0):ocfs2_write_dquot:682 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_mark_dquot_dirty:978 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_start_trans:357 ERROR: status = -30 OCFS2: abort (device loop0): handle_t *ocfs2_start_trans(struct ocfs2_super *, int): Detected aborted journal On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted. (syz.0.0,5316,0):ocfs2_write_dquot:682 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_mark_dquot_dirty:978 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_dio_wr_get_block:2241 ERROR: status = -30 (syz.0.0,5316,0):ocfs2_dio_end_io:2424 ERROR: Direct IO failed, bytes = -30 syz.0.0 (5316) used greatest stack depth: 18272 bytes left