------------[ cut here ]------------
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Tainted: G             L     
------------------------------------------------------
syz.2.1190/10841 is trying to acquire lock:
ffffffff8e4eeee0 (console_owner){-...}-{0:0}, at: console_lock_spinning_enable+0x61/0x80 kernel/printk/printk.c:1900

but task is already holding lock:
ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:647 [inline]
ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:632

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #5 (&rq->__lock){-.-.}-{2:2}:
       _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:639
       raw_spin_rq_lock kernel/sched/sched.h:1580 [inline]
       task_rq_lock+0xcf/0x490 kernel/sched/core.c:739
       cgroup_move_task+0x81/0x2a0 kernel/sched/psi.c:1170
       css_set_move_task+0x285/0x600 kernel/cgroup/cgroup.c:948
       cgroup_post_fork+0x1fe/0x9b0 kernel/cgroup/cgroup.c:6910
       copy_process+0x57b0/0x7890 kernel/fork.c:2465
       kernel_clone+0xfc/0x930 kernel/fork.c:2651
       user_mode_thread+0xcc/0x110 kernel/fork.c:2727
       rest_init+0x21/0x260 init/main.c:722
       start_kernel+0x47a/0x480 init/main.c:1206
       x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
       x86_64_start_kernel+0x122/0x130 arch/x86/kernel/head64.c:291
       common_startup_64+0x13e/0x148

-> #4 (&p->pi_lock){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
       class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:557 [inline]
       try_to_wake_up+0xb2/0x1a60 kernel/sched/core.c:4106
       create_worker+0x33a/0x740 kernel/workqueue.c:2828
       workqueue_init+0x768/0x930 kernel/workqueue.c:7958
       kernel_init_freeable+0x3d4/0x790 init/main.c:1673
       kernel_init+0x1f/0x1e0 init/main.c:1578
       ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246

-> #3 (&pool->lock){-.-.}-{2:2}:
       __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
       _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
       __queue_work+0x270/0x10f0 kernel/workqueue.c:2295
       queue_work_on+0x1a9/0x1e0 kernel/workqueue.c:2386
       queue_work include/linux/workqueue.h:669 [inline]
       rpm_suspend+0xe90/0x1160 drivers/base/power/runtime.c:688
       rpm_idle+0x5e8/0x760 drivers/base/power/runtime.c:562
       __pm_runtime_idle+0xba/0x1a0 drivers/base/power/runtime.c:1129
       pm_runtime_put include/linux/pm_runtime.h:563 [inline]
       __device_attach+0x37e/0x4d0 drivers/base/dd.c:1051
       device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1088
       bus_probe_device+0x64/0x160 drivers/base/bus.c:574
       device_add+0x11d9/0x1950 drivers/base/core.c:3689
       serial_base_port_add+0x227/0x2b0 drivers/tty/serial/serial_base_bus.c:186
       serial_core_port_device_add drivers/tty/serial/serial_core.c:3252 [inline]
       serial_core_register_port+0x13c/0x1720 drivers/tty/serial/serial_core.c:3291
       serial8250_register_8250_port+0x155a/0x2260 drivers/tty/serial/8250/8250_core.c:822
       serial_pnp_probe+0x436/0x930 drivers/tty/serial/8250/8250_pnp.c:480
       pnp_device_probe+0x2b3/0x4a0 drivers/pnp/driver.c:111
       call_driver_probe drivers/base/dd.c:583 [inline]
       really_probe+0x241/0xa60 drivers/base/dd.c:661
       __driver_probe_device+0x1de/0x400 drivers/base/dd.c:803
       driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:833
       __driver_attach+0x217/0x5c0 drivers/base/dd.c:1227
       bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:383
       bus_add_driver+0x305/0x5b0 drivers/base/bus.c:715
       driver_register+0x1e2/0x360 drivers/base/driver.c:249
       serial8250_init+0xcc/0x1b0 drivers/tty/serial/8250/8250_platform.c:317
       do_one_initcall+0x11d/0x690 init/main.c:1378
       do_initcall_level init/main.c:1440 [inline]
       do_initcalls init/main.c:1456 [inline]
       do_basic_setup init/main.c:1475 [inline]
       kernel_init_freeable+0x6e5/0x790 init/main.c:1688
       kernel_init+0x1f/0x1e0 init/main.c:1578
       ret_from_fork+0x754/0xaf0 arch/x86/kernel/process.c:158
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246

-> #2 (&dev->power.lock){-.-.}-{3:3}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
       __pm_runtime_resume+0xa9/0x170 drivers/base/power/runtime.c:1196
       pm_runtime_get include/linux/pm_runtime.h:494 [inline]
       __uart_start+0x1b0/0x510 drivers/tty/serial/serial_core.c:149
       uart_write+0x211/0xb20 drivers/tty/serial/serial_core.c:633
       process_output_block drivers/tty/n_tty.c:557 [inline]
       n_tty_write+0x44f/0x12d0 drivers/tty/n_tty.c:2366
       iterate_tty_write drivers/tty/tty_io.c:1006 [inline]
       file_tty_write.isra.0+0x4d2/0x890 drivers/tty/tty_io.c:1081
       tty_write drivers/tty/tty_io.c:1102 [inline]
       redirected_tty_write drivers/tty/tty_io.c:1125 [inline]
       redirected_tty_write+0xd4/0x120 drivers/tty/tty_io.c:1105
       new_sync_write fs/read_write.c:593 [inline]
       vfs_write+0x6ac/0x1070 fs/read_write.c:686
       ksys_write+0x12a/0x250 fs/read_write.c:738
       do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
       do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&port_lock_key){-.-.}-{3:3}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
       uart_port_lock_irqsave include/linux/serial_core.h:717 [inline]
       serial8250_console_write+0x17e/0x1900 drivers/tty/serial/8250/8250_port.c:3301
       console_emit_next_record kernel/printk/printk.c:3129 [inline]
       console_flush_one_record+0x790/0xe50 kernel/printk/printk.c:3215
       console_flush_all kernel/printk/printk.c:3289 [inline]
       __console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
       console_unlock+0x103/0x260 kernel/printk/printk.c:3359
       vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2426
       _printk+0xcf/0x110 kernel/printk/printk.c:2451
       register_console.cold+0xc0/0x248 kernel/printk/printk.c:4170
       univ8250_console_init+0x6f/0x80 drivers/tty/serial/8250/8250_core.c:515
       console_init+0x371/0x520 kernel/printk/printk.c:4369
       start_kernel+0x300/0x480 init/main.c:1143
       x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
       x86_64_start_kernel+0x122/0x130 arch/x86/kernel/head64.c:291
       common_startup_64+0x13e/0x148

-> #0 (console_owner){-...}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3165 [inline]
       check_prevs_add kernel/locking/lockdep.c:3284 [inline]
       validate_chain kernel/locking/lockdep.c:3908 [inline]
       __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237
       lock_acquire kernel/locking/lockdep.c:5868 [inline]
       lock_acquire+0x17c/0x330 kernel/locking/lockdep.c:5825
       console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1900
       console_emit_next_record kernel/printk/printk.c:3123 [inline]
       console_flush_one_record+0x739/0xe50 kernel/printk/printk.c:3215
       console_flush_all kernel/printk/printk.c:3289 [inline]
       __console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
       console_unlock+0x103/0x260 kernel/printk/printk.c:3359
       vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2426
       _printk+0xcf/0x110 kernel/printk/printk.c:2451
       __report_bug.cold+0x15/0x137 lib/bug.c:243
       report_bug+0xb2/0x220 lib/bug.c:281
       handle_bug+0x166/0x2a0 arch/x86/kernel/traps.c:435
       exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:489
       asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616
       lockdep_assert_rq_held kernel/sched/sched.h:1571 [inline]
       lockdep_assert_rq_held kernel/sched/sched.h:1569 [inline]
       update_rq_clock+0x34a/0xd30 kernel/sched/core.c:837
       pick_next_task kernel/sched/core.c:6092 [inline]
       __schedule+0x1b0d/0x5e10 kernel/sched/core.c:6809
       preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7051
       preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
       __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
       _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194
       spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
       __wake_up_common_lock kernel/sched/wait.c:127 [inline]
       __wake_up+0x3f/0x60 kernel/sched/wait.c:146
       stop_this_handle+0x3cd/0x4b0 fs/jbd2/transaction.c:732
       jbd2_journal_stop+0x569/0xe50 fs/jbd2/transaction.c:1962
       __ext4_journal_stop+0xdd/0x210 fs/ext4/ext4_jbd2.c:136
       ext4_dirty_inode+0xed/0x130 fs/ext4/inode.c:6503
       __mark_inode_dirty+0x1ec/0x1560 fs/fs-writeback.c:2587
       generic_update_time+0xcf/0xf0 fs/inode.c:2158
       inode_update_time fs/inode.c:2171 [inline]
       file_update_time_flags+0x401/0x510 fs/inode.c:2398
       ext4_page_mkwrite+0x35b/0x1980 fs/ext4/inode.c:6668
       do_page_mkwrite+0x17a/0x440 mm/memory.c:3531
       do_shared_fault mm/memory.c:5834 [inline]
       do_fault+0x3d7/0x1990 mm/memory.c:5896
       do_pte_missing mm/memory.c:4404 [inline]
       handle_pte_fault mm/memory.c:6276 [inline]
       __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414
       handle_mm_fault+0x36d/0xa20 mm/memory.c:6583
       do_user_addr_fault+0x74c/0x12f0 arch/x86/mm/fault.c:1385
       handle_page_fault arch/x86/mm/fault.c:1474 [inline]
       exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
       asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618

other info that might help us debug this:

Chain exists of:
  console_owner --> &p->pi_lock --> &rq->__lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&rq->__lock);
                               lock(&p->pi_lock);
                               lock(&rq->__lock);
  lock(console_owner);

 *** DEADLOCK ***

6 locks held by syz.2.1190/10841:
 #0: ffff8880284e0340 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_trylock include/linux/mmap_lock.h:410 [inline]
 #0: ffff8880284e0340 (&mm->mmap_lock){++++}-{4:4}, at: get_mmap_lock_carefully mm/mmap_lock.c:390 [inline]
 #0: ffff8880284e0340 (&mm->mmap_lock){++++}-{4:4}, at: lock_mm_and_find_vma+0x35/0x6f0 mm/mmap_lock.c:450
 #1: ffff88814de62518 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x17a/0x440 mm/memory.c:3531
 #2: ffff88814de66950 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0xfaa/0x13a0 fs/jbd2/transaction.c:444
 #3: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:647 [inline]
 #3: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:632
 #4: ffffffff8e5cf320 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x110 kernel/printk/printk.c:2451
 #5: ffffffff8e5cf398 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:336 [inline]
 #5: ffffffff8e5cf398 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:409 [inline]
 #5: ffffffff8e5cf398 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:289 [inline]
 #5: ffffffff8e5cf398 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfd/0xe50 kernel/printk/printk.c:3192

stack backtrace:
CPU: 0 UID: 0 PID: 10841 Comm: syz.2.1190 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043
 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175
 check_prev_add kernel/locking/lockdep.c:3165 [inline]
 check_prevs_add kernel/locking/lockdep.c:3284 [inline]
 validate_chain kernel/locking/lockdep.c:3908 [inline]
 __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237
 lock_acquire kernel/locking/lockdep.c:5868 [inline]
 lock_acquire+0x17c/0x330 kernel/locking/lockdep.c:5825
 console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1900
 console_emit_next_record kernel/printk/printk.c:3123 [inline]
 console_flush_one_record+0x739/0xe50 kernel/printk/printk.c:3215
 console_flush_all kernel/printk/printk.c:3289 [inline]
 __console_flush_and_unlock kernel/printk/printk.c:3319 [inline]
 console_unlock+0x103/0x260 kernel/printk/printk.c:3359
 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2426
 _printk+0xcf/0x110 kernel/printk/printk.c:2451
 __report_bug.cold+0x15/0x137 lib/bug.c:243
 report_bug+0xb2/0x220 lib/bug.c:281
 handle_bug+0x166/0x2a0 arch/x86/kernel/traps.c:435
 exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:489
 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1571 [inline]
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1569 [inline]
RIP: 0010:update_rq_clock+0x34a/0xd30 kernel/sched/core.c:837
Code: ab 48 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 c8 eb a2 09 a8 04 0f 84 9e fd ff ff 90 0f 0b 90 e9 95 fd ff ff 90 <0f> 0b 90 e9 51 fd ff ff 48 8d bb 18 0e 00 00 48 b8 00 00 00 00 00
RSP: 0018:ffffc90002ee7640 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880b853adc0 RCX: 0000000000000001
RDX: 0000000000000046 RSI: ffffffff8dc1b3c0 RDI: ffffffff8bfa32a0
RBP: ffffc90002ee77e8 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90b771d7 R11: 0000000000000000 R12: ffffffff90b7a254
R13: ffff8880b853bbf0 R14: ffff88801deebd00 R15: ffff8880b853adc0
 pick_next_task kernel/sched/core.c:6092 [inline]
 __schedule+0x1b0d/0x5e10 kernel/sched/core.c:6809
 preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7051
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __wake_up_common_lock kernel/sched/wait.c:127 [inline]
 __wake_up+0x3f/0x60 kernel/sched/wait.c:146
 stop_this_handle+0x3cd/0x4b0 fs/jbd2/transaction.c:732
 jbd2_journal_stop+0x569/0xe50 fs/jbd2/transaction.c:1962
 __ext4_journal_stop+0xdd/0x210 fs/ext4/ext4_jbd2.c:136
 ext4_dirty_inode+0xed/0x130 fs/ext4/inode.c:6503
 __mark_inode_dirty+0x1ec/0x1560 fs/fs-writeback.c:2587
 generic_update_time+0xcf/0xf0 fs/inode.c:2158
 inode_update_time fs/inode.c:2171 [inline]
 file_update_time_flags+0x401/0x510 fs/inode.c:2398
 ext4_page_mkwrite+0x35b/0x1980 fs/ext4/inode.c:6668
 do_page_mkwrite+0x17a/0x440 mm/memory.c:3531
 do_shared_fault mm/memory.c:5834 [inline]
 do_fault+0x3d7/0x1990 mm/memory.c:5896
 do_pte_missing mm/memory.c:4404 [inline]
 handle_pte_fault mm/memory.c:6276 [inline]
 __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583
 do_user_addr_fault+0x74c/0x12f0 arch/x86/mm/fault.c:1385
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f828986f4c0
Code: 83 e6 07 0f 85 19 01 00 00 be 08 00 00 00 4c 89 ff 83 c5 01 e8 11 95 fe ff 49 8b 47 40 41 83 47 30 08 48 8d 48 f8 49 89 4f 40 <48> 89 58 f8 49 83 c5 01 45 3b 6c 24 04 0f 82 fd fe ff ff 41 80 7f
RSP: 002b:00007ffc5180acb0 EFLAGS: 00010202
RAX: 0000001b310d0000 RBX: ffffffff84979ece RCX: 0000001b310cfff8
RDX: 0000001b30b24220 RSI: 0000000000000008 RDI: 00007f828a745720
RBP: 0000000000000038 R08: 00007f8289c00000 R09: 00007f8289c02000
R10: 0000000084979ed2 R11: 0000000000000005 R12: 00007f8289c16038
R13: 0000000000000037 R14: ffffffff849795fe R15: 00007f828a745720
 </TASK>
debug_locks && !(lock_is_held(&(__rq_lockp(rq))->dep_map) != 0)
WARNING: kernel/sched/sched.h:1571 at lockdep_assert_rq_held kernel/sched/sched.h:1571 [inline], CPU#0: syz.2.1190/10841
WARNING: kernel/sched/sched.h:1571 at lockdep_assert_rq_held kernel/sched/sched.h:1569 [inline], CPU#0: syz.2.1190/10841
WARNING: kernel/sched/sched.h:1571 at update_rq_clock+0x34a/0xd30 kernel/sched/core.c:837, CPU#0: syz.2.1190/10841
Modules linked in:
CPU: 0 UID: 0 PID: 10841 Comm: syz.2.1190 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1571 [inline]
RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1569 [inline]
RIP: 0010:update_rq_clock+0x34a/0xd30 kernel/sched/core.c:837
Code: ab 48 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 c8 eb a2 09 a8 04 0f 84 9e fd ff ff 90 0f 0b 90 e9 95 fd ff ff 90 <0f> 0b 90 e9 51 fd ff ff 48 8d bb 18 0e 00 00 48 b8 00 00 00 00 00
RSP: 0018:ffffc90002ee7640 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8880b853adc0 RCX: 0000000000000001
RDX: 0000000000000046 RSI: ffffffff8dc1b3c0 RDI: ffffffff8bfa32a0
RBP: ffffc90002ee77e8 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90b771d7 R11: 0000000000000000 R12: ffffffff90b7a254
R13: ffff8880b853bbf0 R14: ffff88801deebd00 R15: ffff8880b853adc0
FS:  0000555574e2f500(0000) GS:ffff8881245e3000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b310cfff8 CR3: 000000007a37e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 pick_next_task kernel/sched/core.c:6092 [inline]
 __schedule+0x1b0d/0x5e10 kernel/sched/core.c:6809
 preempt_schedule_common+0x42/0xc0 kernel/sched/core.c:7051
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
 _raw_spin_unlock_irqrestore+0x61/0x80 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 __wake_up_common_lock kernel/sched/wait.c:127 [inline]
 __wake_up+0x3f/0x60 kernel/sched/wait.c:146
 stop_this_handle+0x3cd/0x4b0 fs/jbd2/transaction.c:732
 jbd2_journal_stop+0x569/0xe50 fs/jbd2/transaction.c:1962
 __ext4_journal_stop+0xdd/0x210 fs/ext4/ext4_jbd2.c:136
 ext4_dirty_inode+0xed/0x130 fs/ext4/inode.c:6503
 __mark_inode_dirty+0x1ec/0x1560 fs/fs-writeback.c:2587
 generic_update_time+0xcf/0xf0 fs/inode.c:2158
 inode_update_time fs/inode.c:2171 [inline]
 file_update_time_flags+0x401/0x510 fs/inode.c:2398
 ext4_page_mkwrite+0x35b/0x1980 fs/ext4/inode.c:6668
 do_page_mkwrite+0x17a/0x440 mm/memory.c:3531
 do_shared_fault mm/memory.c:5834 [inline]
 do_fault+0x3d7/0x1990 mm/memory.c:5896
 do_pte_missing mm/memory.c:4404 [inline]
 handle_pte_fault mm/memory.c:6276 [inline]
 __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414
 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583
 do_user_addr_fault+0x74c/0x12f0 arch/x86/mm/fault.c:1385
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f828986f4c0
Code: 83 e6 07 0f 85 19 01 00 00 be 08 00 00 00 4c 89 ff 83 c5 01 e8 11 95 fe ff 49 8b 47 40 41 83 47 30 08 48 8d 48 f8 49 89 4f 40 <48> 89 58 f8 49 83 c5 01 45 3b 6c 24 04 0f 82 fd fe ff ff 41 80 7f
RSP: 002b:00007ffc5180acb0 EFLAGS: 00010202
RAX: 0000001b310d0000 RBX: ffffffff84979ece RCX: 0000001b310cfff8
RDX: 0000001b30b24220 RSI: 0000000000000008 RDI: 00007f828a745720
RBP: 0000000000000038 R08: 00007f8289c00000 R09: 00007f8289c02000
R10: 0000000084979ed2 R11: 0000000000000005 R12: 00007f8289c16038
R13: 0000000000000037 R14: ffffffff849795fe R15: 00007f828a745720
 </TASK>