INFO: task kworker/0:14:10512 blocked for more than 143 seconds. Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:14 state:D stack:25200 pid:10512 tgid:10512 ppid:2 flags:0x00004000 Workqueue: gfs2_recovery gfs2_recover_func Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736 __schedule_loop kernel/sched/core.c:6813 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6828 io_schedule+0x8d/0x110 kernel/sched/core.c:9034 folio_wait_bit_common+0x882/0x12b0 mm/filemap.c:1283 folio_wait_locked include/linux/pagemap.h:1123 [inline] gfs2_jhead_process_page+0x194/0x750 fs/gfs2/lops.c:470 gfs2_find_jhead+0xd68/0xf10 fs/gfs2/lops.c:587 gfs2_recover_func+0x6c1/0x1f20 fs/gfs2/recovery.c:460 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa02/0x1770 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 INFO: task syz-executor.1:14551 blocked for more than 143 seconds. Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:23408 pid:14551 tgid:14550 ppid:6457 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5409 [inline] __schedule+0x17d3/0x4a20 kernel/sched/core.c:6736 __schedule_loop kernel/sched/core.c:6813 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6828 bit_wait+0x12/0xd0 kernel/sched/wait_bit.c:199 __wait_on_bit+0xb2/0x2f0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x1d5/0x260 kernel/sched/wait_bit.c:64 wait_on_bit include/linux/wait_bit.h:76 [inline] gfs2_recover_journal+0xf2/0x160 fs/gfs2/recovery.c:577 init_journal+0x1845/0x23f0 fs/gfs2/ops_fstype.c:831 init_inodes+0xdc/0x320 fs/gfs2/ops_fstype.c:884 gfs2_fill_super+0x1edb/0x26c0 fs/gfs2/ops_fstype.c:1263 get_tree_bdev+0x3f9/0x570 fs/super.c:1614 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1341 vfs_get_tree+0x92/0x2a0 fs/super.c:1779 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fbe5e27f4aa RSP: 002b:00007fbe5d5feef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fbe5d5fef80 RCX: 00007fbe5e27f4aa RDX: 000000002001f680 RSI: 000000002001f6c0 RDI: 00007fbe5d5fef40 RBP: 000000002001f680 R08: 00007fbe5d5fef80 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000000002001f6c0 R13: 00007fbe5d5fef40 R14: 000000000001f73f R15: 0000000020000000 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 2 locks held by getty/4828: #0: ffff88802a46b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f162f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201 2 locks held by kworker/0:14/10512: #0: ffff888018f7d948 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline] #0: ffff888018f7d948 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335 #1: ffffc90003b9fd00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline] #1: ffffc90003b9fd00 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335 1 lock held by syz-executor.5/11766: 1 lock held by syz-executor.1/14551: #0: ffff8880368d40e0 (&type->s_umount_key#100/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:343 2 locks held by syz-executor.1/18925: 3 locks held by syz-executor.3/18926: #0: ffffffff8e17d688 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_unregister+0x32/0x990 kernel/tracepoint.c:548 #1: ffffffff8e213d08 (reg_lock){+.+.}-{3:3}, at: trace_mmap_lock_unreg+0x18/0x50 mm/mmap_lock.c:121 #2: ffffffff8e1373b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] #2: ffffffff8e1373b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x39a/0x820 kernel/rcu/tree_exp.h:939 1 lock held by syz-executor.4/18945: #0: ffffffff8e17d688 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478 1 lock held by syz-executor.5/18948: #0: ffffffff8e17d688 (tracepoints_mutex){+.+.}-{3:3}, at: tracepoint_probe_register_prio_may_exist+0xbb/0x190 kernel/tracepoint.c:478 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfb0/0xff0 kernel/hung_task.c:379 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12666 Comm: kworker/u8:9 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:do_raw_spin_lock+0x190/0x370 kernel/locking/spinlock_debug.c:118 Code: 00 00 00 f0 41 0f b1 0c 24 0f 85 df 00 00 00 65 8b 1d 00 d5 90 7e 41 0f b6 04 17 84 c0 0f 85 90 01 00 00 48 8b 44 24 18 89 18 <48> 8b 44 24 20 80 3c 10 00 48 8b 5c 24 30 74 12 48 89 df e8 a8 49 RSP: 0018:ffffc9000f92f9e0 EFLAGS: 00000246 RAX: ffff88807b0a0408 RBX: 0000000000000001 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc9000f92fa40 RBP: ffffc9000f92fab0 R08: 0000000000000003 R09: fffff52001f25f48 R10: dffffc0000000000 R11: fffff52001f25f48 R12: ffff88807b0a0400 R13: 1ffff92001f25f48 R14: ffffc9000f92fa40 R15: 1ffff1100f614081 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f07e43ff800 CR3: 000000000df32000 CR4: 0000000000350ef0 Call Trace: spin_lock_bh include/linux/spinlock.h:356 [inline] batadv_nc_purge_paths+0xe8/0x3b0 net/batman-adv/network-coding.c:442 batadv_nc_worker+0x365/0x610 net/batman-adv/network-coding.c:722 process_one_work kernel/workqueue.c:3254 [inline] process_scheduled_works+0xa02/0x1770 kernel/workqueue.c:3335 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416 kthread+0x2f2/0x390 kernel/kthread.c:388 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243