INFO: task jfsCommit:120 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:27136 pid:120   tgid:120   ppid:2      task_flags:0x200040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x1553/0x5240 kernel/sched/core.c:6911
 __schedule_loop kernel/sched/core.c:6993 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7008
 io_schedule+0x80/0xe0 kernel/sched/core.c:7835
 __lock_metapage fs/jfs/jfs_metapage.c:52 [inline]
 lock_metapage+0x1ff/0x400 fs/jfs/jfs_metapage.c:66
 __get_metapage+0x49a/0xde0 fs/jfs/jfs_metapage.c:748
 diIAGRead+0xce/0x140 fs/jfs/jfs_imap.c:2672
 diFree+0x9dd/0x2ca0 fs/jfs/jfs_imap.c:959
 jfs_evict_inode+0x331/0x440 fs/jfs/inode.c:162
 evict+0x61e/0xb10 fs/inode.c:846
 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
 jfs_lazycommit+0x3ef/0xa10 fs/jfs/jfs_txnmgr.c:2734
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
INFO: task syz-executor:11569 blocked for more than 143 seconds.
      Not tainted syzkaller #0
      Blocked by coredump.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22664 pid:11569 tgid:11569 ppid:1      task_flags:0x40014c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5298 [inline]
 __schedule+0x1553/0x5240 kernel/sched/core.c:6911
 __schedule_loop kernel/sched/core.c:6993 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7008
 jfs_flush_journal+0x729/0xef0 fs/jfs/jfs_logmgr.c:1563
 jfs_sync_fs+0x7d/0xa0 fs/jfs/super.c:649
 sync_filesystem+0x1ce/0x250 fs/sync.c:66
 generic_shutdown_super+0x77/0x2d0 fs/super.c:625
 kill_block_super+0x44/0x90 fs/super.c:1725
 deactivate_locked_super+0xbc/0x130 fs/super.c:476
 cleanup_mnt+0x437/0x4d0 fs/namespace.c:1312
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x23c0 kernel/exit.c:976
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1118
 __do_sys_exit_group kernel/exit.c:1129 [inline]
 __se_sys_exit_group kernel/exit.c:1127 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1127
 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2f7c1cc799
RSP: 002b:00007ffe70fcba48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f2f7c262075 RCX: 00007f2f7c1cc799
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000002 R08: 0000000000000000 R09: 00007f2f7c262050
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe70fccd00
R13: 00007f2f7c262050 R14: 000000000008e41f R15: 00007ffe70fceec0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/39:
 #0: ffffffff8ddcb980 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
 #0: ffffffff8ddcb980 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline]
 #0: ffffffff8ddcb980 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775
2 locks held by jfsCommit/120:
 #0: ffff88804f618900 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x2e8/0x2ca0 fs/jfs/jfs_imap.c:889
 #1: ffff888060a9eca8 (&jfs_ip->rdwrlock/1){++++}-{4:4}, at: diFree+0x306/0x2ca0 fs/jfs/jfs_imap.c:894
3 locks held by kworker/u8:5/134:
 #0: ffff888026816138 ((wq_completion)loop0){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3251 [inline]
 #0: ffff888026816138 ((wq_completion)loop0){+.+.}-{0:0}, at: process_scheduled_works+0xa52/0x18c0 kernel/workqueue.c:3359
 #1: ffffc900031c7c40 ((work_completion)(&worker->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3252 [inline]
 #1: ffffc900031c7c40 ((work_completion)(&worker->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa8d/0x18c0 kernel/workqueue.c:3359
 #2: ffff88802568c160 (&lo->lo_work_lock){+.+.}-{3:3}, at: spin_lock_irq include/linux/spinlock_rt.h:96 [inline]
 #2: ffff88802568c160 (&lo->lo_work_lock){+.+.}-{3:3}, at: loop_process_work+0x125/0x11b0 drivers/block/loop.c:1953
2 locks held by udevd/5164:
2 locks held by getty/5553:
 #0: ffff8880365e70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc90003e8b2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13c0 drivers/tty/n_tty.c:2211
2 locks held by udevd/5938:
1 lock held by syz-executor/11569:
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: __super_lock fs/super.c:58 [inline]
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: __super_lock_excl fs/super.c:73 [inline]
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: deactivate_super+0xa9/0xe0 fs/super.c:508
1 lock held by syz.1.1024/13852:
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: __super_lock fs/super.c:60 [inline]
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: super_lock+0x2d6/0x3d0 fs/super.c:122
1 lock held by syz.1.1024/13885:
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: __super_lock fs/super.c:60 [inline]
 #0: ffff88803c7860d0 (&type->s_umount_key#75){++++}-{4:4}, at: super_lock+0x2d6/0x3d0 fs/super.c:122
4 locks held by syz.9.1106/14577:
3 locks held by syz.6.1109/14582:
3 locks held by syz.8.1108/14584:
 #0: ffff88801aada480 (sb_writers#5){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2710 [inline]
 #0: ffff88801aada480 (sb_writers#5){.+.+}-{0:0}, at: vfs_write+0x22d/0xba0 fs/read_write.c:684
 #1: ffff88804cbd34d8 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1028 [inline]
 #1: ffff88804cbd34d8 (&sb->s_type->i_mutex_key#14){+.+.}-{4:4}, at: shmem_file_write_iter+0x82/0x120 mm/shmem.c:3492
 #2: ffff8880b8933f90 ((lock)#2){+.+.}-{3:3}, at: spin_lock include/linux/spinlock_rt.h:45 [inline]
 #2: ffff8880b8933f90 ((lock)#2){+.+.}-{3:3}, at: __folio_batch_add_and_move+0x283/0xa90 mm/swap.c:-1
1 lock held by syz.5.1110/14594:
4 locks held by syz.0.1111/14600:
1 lock held by sed/14604:

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:346 [inline]
 watchdog+0xfd9/0x1030 kernel/hung_task.c:515
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5938 Comm: udevd Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:mas_validate_parent_slot lib/maple_tree.c:6981 [inline]
RIP: 0010:mt_validate+0x86d/0x4340 lib/maple_tree.c:7172
Code: 00 00 00 e8 95 e0 0e f7 f0 ff 05 ae 3f 9d 0e eb 0e 4d 39 fc 0f 84 f6 00 00 00 e8 3e cd a8 f6 48 39 5c 24 18 0f 84 be 01 00 00 <e8> 2e cd a8 f6 49 83 c5 08 48 ff c3 e9 54 fe ff ff e8 2d 2e 07 00
RSP: 0018:ffffc900051175c0 EFLAGS: 00000202
RAX: ffffffff8b1ba9c2 RBX: 0000000000000005 RCX: ffff88802fdfdb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900051177b0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff3371d2c R12: ffff88803b19ea0c
R13: ffff8880778c8a78 R14: 0000000000000002 R15: ffff88803df0080c
FS:  00007f9aacb38880(0000) GS:ffff88812643c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9aac1ea000 CR3: 0000000037e0a000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 validate_mm+0xd4/0x4c0 mm/vma.c:649
 vms_complete_munmap_vmas+0x9b1/0xc60 mm/vma.c:1345
 do_vmi_align_munmap+0x3bd/0x4d0 mm/vma.c:1585
 do_vmi_munmap+0x252/0x2d0 mm/vma.c:1633
 __vm_munmap+0x22c/0x3d0 mm/vma.c:3254
 __do_sys_munmap mm/mmap.c:1078 [inline]
 __se_sys_munmap mm/mmap.c:1075 [inline]
 __x64_sys_munmap+0x60/0x70 mm/mmap.c:1075
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9aacc9d097
Code: 73 01 c3 48 8b 0d 61 2d 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 31 2d 0d 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd309bb0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
RAX: ffffffffffffffda RBX: 000055804bbf6400 RCX: 00007f9aacc9d097
RDX: 000055804bc170a0 RSI: 0000000000000200 RDI: 00007f9aac1d5000
RBP: 000055804bc170a0 R08: 0000000000000000 R09: 0000000000000400
R10: 000055804bc17090 R11: 0000000000000246 R12: 00007f9aad378c00
R13: 00007f9aad37c39c R14: 0000000000000048 R15: 0000000000000001
 </TASK>