INFO: task jfsCommit:275 blocked for more than 152 seconds. Not tainted 5.15.169-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:26360 pid: 275 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5027 [inline] __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373 schedule+0x11b/0x1f0 kernel/sched/core.c:6456 io_schedule+0x88/0x100 kernel/sched/core.c:8481 __lock_metapage+0x1ec/0x3c0 fs/jfs/jfs_metapage.c:49 lock_metapage fs/jfs/jfs_metapage.c:63 [inline] __get_metapage+0x495/0x1070 fs/jfs/jfs_metapage.c:640 diIAGRead+0xcb/0x130 fs/jfs/jfs_imap.c:2672 diFree+0xa7a/0x2fb0 fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x329/0x440 fs/jfs/inode.c:156 evict+0x529/0x930 fs/inode.c:622 txUpdateMap+0x825/0x9e0 fs/jfs/jfs_txnmgr.c:2401 txLazyCommit fs/jfs/jfs_txnmgr.c:2698 [inline] jfs_lazycommit+0x470/0xc30 fs/jfs/jfs_txnmgr.c:2766 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Showing all locks held in the system: 3 locks held by kworker/0:0/7: #0: ffff88814a9f9538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90000cc7d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113 1 lock held by khungtaskd/27: #0: ffffffff8c91fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by jfsCommit/275: #0: ffff88805c390920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x378/0x2fb0 fs/jfs/jfs_imap.c:889 #1: ffff888065c40138 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x394/0x2fb0 fs/jfs/jfs_imap.c:894 2 locks held by jfsCommit/276: #0: ffff88806a158920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x378/0x2fb0 fs/jfs/jfs_imap.c:889 #1: ffff88805c472f78 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x394/0x2fb0 fs/jfs/jfs_imap.c:894 2 locks held by kworker/0:2/1078: #0: ffff888017072138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc900048dfd20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 4 locks held by kworker/u4:4/1215: #0: ffff8880171cd938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90004f2fd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da26590 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf1/0xb60 net/core/net_namespace.c:561 #3: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: cangw_pernet_exit+0xe/0x20 net/can/gw.c:1244 1 lock held by dhcpcd/3241: #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x12e/0x6d0 net/netlink/af_netlink.c:2349 2 locks held by getty/3339: #0: ffff888028f19098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252 #1: ffffc9000208e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158 3 locks held by kworker/1:15/4587: #0: ffff88814a9f9538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc9000150fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcc/0x1720 net/ipv6/addrconf.c:4113 4 locks held by kworker/u4:11/4977: #0: ffff888017079138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283 #1: ffffc90002e97d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285 #2: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251 #3: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #3: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845 3 locks held by kworker/u4:14/5804: #0: ffff8880b903a318 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xa8/0x140 kernel/sched/core.c:483 #1: ffff8880b9027848 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4e1/0x810 kernel/sched/psi.c:882 #2: ffffffff8c91fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 include/linux/rcupdate.h:311 2 locks held by syz.3.418/5882: #0: ffff88807b3460e0 (&type->s_umount_key#66){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365 #1: ffffffff8ccbc5e8 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1452 1 lock held by syz-executor/7130: #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644 1 lock held by syz-executor/7291: #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644 2 locks held by syz.1.720/7393: #0: ffff88805c488810 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:789 [inline] #0: ffff88805c488810 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline] #0: ffff88805c488810 (&sb->s_type->i_mutex_key#11){+.+.}-{3:3}, at: sock_close+0x98/0x230 net/socket.c:1336 #1: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #1: ffffffff8c924228 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845 1 lock held by syz.1.720/7394: #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644 1 lock held by syz.1.720/7395: #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8da32148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 net/core/rtnetlink.c:5644 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xe72/0xeb0 kernel/hung_task.c:295 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 144 Comm: kworker/u4:1 Not tainted 5.15.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound btrfs_async_reclaim_metadata_space RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:write_comp_data kernel/kcov.c:226 [inline] RIP: 0010:__sanitizer_cov_trace_cmp8+0x4/0x80 kernel/kcov.c:273 Code: 89 f8 89 f6 48 c7 44 0a 08 04 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 49 ff c1 4c 89 09 c3 0f 1f 00 4c 8b 04 24 <65> 48 8b 0d f4 f9 81 7e 65 8b 05 f5 f9 81 7e 25 00 01 ff 00 74 10 RSP: 0018:ffffc900010ae850 EFLAGS: 00000006 RAX: ffffffff840840b2 RBX: ffffffffffffffff RCX: ffff8880193c9dc0 RDX: 0000000000000000 RSI: 0000000000100000 RDI: 0000000000005100 RBP: dffffc0000000000 R08: ffffffff8408408a R09: ffffffff92b5a948 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000005100 R13: ffffffff930021c0 R14: 0000000000100000 R15: ffffffff930021c0 FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002027d000 CR3: 000000007defe000 CR4: 00000000003506f0 DR0: 0000000000000010 DR1: 0000000000000006 DR2: 0000000000000003 DR3: 0000000000000800 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _find_first_zero_bit+0x8a/0xf0 lib/find_bit.c:100 find_first_zero_bit include/asm-generic/bitops/find.h:140 [inline] alloc_list_entry kernel/locking/lockdep.c:1350 [inline] add_lock_to_list+0x30/0x2d0 kernel/locking/lockdep.c:1379 check_prev_add kernel/locking/lockdep.c:3123 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x2c26/0x5930 kernel/locking/lockdep.c:3788 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 lock_page_memcg+0x243/0x4d0 mm/memcontrol.c:2055 __test_set_page_writeback+0x9d/0xf10 mm/page-writeback.c:2844 btrfs_set_range_writeback+0x127/0x3a0 fs/btrfs/inode.c:10671 __extent_writepage_io+0x704/0xec0 fs/btrfs/extent_io.c:4012 __extent_writepage+0x704/0xbc0 fs/btrfs/extent_io.c:4115 extent_write_cache_pages fs/btrfs/extent_io.c:5030 [inline] extent_writepages+0xbbd/0x1590 fs/btrfs/extent_io.c:5157 do_writepages+0x481/0x730 mm/page-writeback.c:2386 filemap_fdatawrite_wbc+0x1d6/0x230 mm/filemap.c:400 start_delalloc_inodes+0x7df/0xca0 fs/btrfs/inode.c:10127 btrfs_start_delalloc_roots+0x72f/0xa70 fs/btrfs/inode.c:10206 shrink_delalloc fs/btrfs/space-info.c:538 [inline] flush_space+0x650/0xd50 fs/btrfs/space-info.c:646 btrfs_async_reclaim_metadata_space+0x29b/0x340 fs/btrfs/space-info.c:953 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 vkms_vblank_simulate: vblank timer overrun