------------[ cut here ]------------ ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G U L ------------------------------------------------------ syz.0.825/9641 is trying to acquire lock: ffffffff8e2d6a40 (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: -> #4 (&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+0x288/0x5f0 kernel/cgroup/cgroup.c:948 cgroup_post_fork+0x201/0x9e0 kernel/cgroup/cgroup.c:6910 copy_process+0x56b6/0x7430 kernel/fork.c:2465 kernel_clone+0xfc/0x910 kernel/fork.c:2651 user_mode_thread+0xc8/0x110 kernel/fork.c:2727 rest_init+0x23/0x2b0 init/main.c:722 start_kernel+0x3ef/0x4d0 init/main.c:1206 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:291 common_startup_64+0x13e/0x148 -> #3 (&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+0xb7/0x1860 kernel/sched/core.c:4106 __pollwake fs/select.c:205 [inline] pollwake+0x18c/0x210 fs/select.c:215 __wake_up_common+0x135/0x1f0 kernel/sched/wait.c:108 __wake_up_common_lock kernel/sched/wait.c:125 [inline] __wake_up+0x31/0x60 kernel/sched/wait.c:146 tty_ldisc_lock+0x59/0xb0 drivers/tty/tty_ldisc.c:311 tty_ldisc_hangup+0x225/0x730 drivers/tty/tty_ldisc.c:718 __tty_hangup.part.0+0x3fe/0x8c0 drivers/tty/tty_io.c:621 __tty_hangup drivers/tty/tty_io.c:688 [inline] tty_vhangup drivers/tty/tty_io.c:691 [inline] tty_vhangup drivers/tty/tty_io.c:688 [inline] tty_ioctl+0x1057/0x1650 drivers/tty/tty_io.c:2732 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&tty->write_wait){-.-.}-{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 __wake_up_common_lock kernel/sched/wait.c:124 [inline] __wake_up+0x1c/0x60 kernel/sched/wait.c:146 tty_port_default_wakeup+0x4d/0x60 drivers/tty/tty_port.c:67 serial8250_tx_chars+0x68e/0x860 drivers/tty/serial/8250/8250_port.c:1719 serial8250_handle_irq+0x761/0xcb0 drivers/tty/serial/8250/8250_port.c:1827 serial8250_default_handle_irq+0x9e/0x270 drivers/tty/serial/8250/8250_port.c:1846 serial8250_interrupt+0xf8/0x1d0 drivers/tty/serial/8250/8250_core.c:86 __handle_irq_event_percpu+0x236/0x890 kernel/irq/handle.c:211 handle_irq_event_percpu kernel/irq/handle.c:248 [inline] handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:265 handle_edge_irq+0x3ca/0x9e0 kernel/irq/chip.c:855 generic_handle_irq_desc include/linux/irqdesc.h:172 [inline] handle_irq arch/x86/kernel/irq.c:255 [inline] call_irq_handler arch/x86/kernel/irq.c:311 [inline] __common_interrupt+0xd0/0x2f0 arch/x86/kernel/irq.c:326 common_interrupt+0xba/0xe0 arch/x86/kernel/irq.c:319 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:81 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline] default_idle+0x13/0x20 arch/x86/kernel/process.c:767 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:191 [inline] do_idle+0x38d/0x510 kernel/sched/idle.c:332 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430 rest_init+0x16b/0x2b0 init/main.c:757 start_kernel+0x3ef/0x4d0 init/main.c:1206 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:291 common_startup_64+0x13e/0x148 -> #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+0x181/0x1890 drivers/tty/serial/8250/8250_port.c:3301 console_emit_next_record kernel/printk/printk.c:3129 [inline] console_flush_one_record+0x796/0xc60 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+0xef/0x240 kernel/printk/printk.c:3359 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2426 _printk+0xc7/0x100 kernel/printk/printk.c:2451 register_console+0x823/0x1210 kernel/printk/printk.c:4170 univ8250_console_init+0x5f/0x90 drivers/tty/serial/8250/8250_core.c:515 console_init+0x152/0x600 kernel/printk/printk.c:4369 start_kernel+0x298/0x4d0 init/main.c:1143 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x130/0x190 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+0x1669/0x2890 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x330 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+0x73f/0xc60 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+0xef/0x240 kernel/printk/printk.c:3359 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2426 _printk+0xc7/0x100 kernel/printk/printk.c:2451 __report_bug+0x3a6/0x520 lib/bug.c:243 report_bug+0xb2/0x220 lib/bug.c:281 handle_bug+0x127/0x260 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/0xc70 kernel/sched/core.c:837 pick_next_task kernel/sched/core.c:6092 [inline] __schedule+0x20fd/0x5ee0 kernel/sched/core.c:6809 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7194 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 lock_release+0x183/0x2d0 kernel/locking/lockdep.c:5893 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x3f9/0x20b0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:165 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1433 [inline] free_unref_folios+0xa22/0x1610 mm/page_alloc.c:3030 folios_put_refs+0x4be/0x750 mm/swap.c:1002 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x58f/0x1140 mm/shmem.c:1137 shmem_truncate_range mm/shmem.c:1249 [inline] shmem_evict_inode+0x39e/0xbe0 mm/shmem.c:1379 evict+0x3c2/0xad0 fs/inode.c:837 iput_final fs/inode.c:1954 [inline] iput.part.0+0x621/0x1190 fs/inode.c:2006 iput+0x35/0x40 fs/inode.c:1969 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:467 __dentry_kill+0x1d0/0x600 fs/dcache.c:670 finish_dput+0x76/0x480 fs/dcache.c:879 dput.part.0+0x451/0x570 fs/dcache.c:928 dput+0x1f/0x30 fs/dcache.c:920 __fput+0x51c/0xb70 fs/file_table.c:476 task_work_run+0x150/0x240 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x87f/0x2bd0 kernel/exit.c:971 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112 get_signal+0x2671/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop kernel/entry/common.c:75 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x38a/0x8c0 kernel/entry/common.c:196 asm_exc_stack_segment+0x26/0x30 arch/x86/include/asm/idtentry.h:611 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 *** 3 locks held by syz.0.825/9641: #0: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:647 [inline] #0: ffff8880b843add8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:632 #1: ffffffff8e3b6e80 (console_lock){+.+.}-{0:0}, at: _printk+0xc7/0x100 kernel/printk/printk.c:2451 #2: ffffffff8e3b6ef8 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:336 [inline] #2: ffffffff8e3b6ef8 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:409 [inline] #2: ffffffff8e3b6ef8 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:289 [inline] #2: ffffffff8e3b6ef8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x103/0xc60 kernel/printk/printk.c:3192 stack backtrace: CPU: 0 UID: 0 PID: 9641 Comm: syz.0.825 Tainted: G U L syzkaller #0 PREEMPT(full) Tainted: [U]=USER, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x275/0x340 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+0x1669/0x2890 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x179/0x330 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+0x73f/0xc60 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+0xef/0x240 kernel/printk/printk.c:3359 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2426 _printk+0xc7/0x100 kernel/printk/printk.c:2451 __report_bug+0x3a6/0x520 lib/bug.c:243 report_bug+0xb2/0x220 lib/bug.c:281 handle_bug+0x127/0x260 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/0xc70 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 c3 cc cc cc cc a8 04 0f 84 9c fd ff ff 90 0f 0b 90 e9 93 fd ff ff 90 <0f> 0b 90 e9 4f fd ff ff 48 8d bb 18 0e 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffffc9000408ec38 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff8880b853adc0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8daa5da7 RDI: ffffffff8bf2b400 RBP: 0000000000000001 R08: ffff8880b843b8c8 R09: fffffbfff2111fda R10: ffffffff9088fed7 R11: 0000000000000001 R12: ffffffff90892f54 R13: ffffffff8dd66620 R14: ffff88801da9bd00 R15: ffff8880b853adc0 pick_next_task kernel/sched/core.c:6092 [inline] __schedule+0x20fd/0x5ee0 kernel/sched/core.c:6809 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7194 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_release+0x183/0x2d0 kernel/locking/lockdep.c:5893 Code: 0f c1 05 58 43 19 12 83 f8 01 0f 85 03 01 00 00 9c 58 f6 c4 02 0f 85 ee 00 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 <65> 48 2b 05 ed fb 18 12 0f 85 32 01 00 00 48 83 c4 18 5b 41 5c 41 RSP: 0018:ffffc9000408eef0 EFLAGS: 00000206 RAX: 2d227a4cd37b6700 RBX: ffffffff8e3c94a0 RCX: ffffc9000408eefc RDX: 0000000000000000 RSI: ffffffff8daa5da7 RDI: ffffffff8bf2b400 RBP: 0000000000000001 R08: 0000000000000001 R09: 00000000ffffffff R10: 0000000000000002 R11: 00000000000131fa R12: ffffffff816c7a34 R13: 0000000000000206 R14: ffff8880203b9e80 R15: 0000000000000001 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x3f9/0x20b0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:165 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1433 [inline] free_unref_folios+0xa22/0x1610 mm/page_alloc.c:3030 folios_put_refs+0x4be/0x750 mm/swap.c:1002 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x58f/0x1140 mm/shmem.c:1137 shmem_truncate_range mm/shmem.c:1249 [inline] shmem_evict_inode+0x39e/0xbe0 mm/shmem.c:1379 evict+0x3c2/0xad0 fs/inode.c:837 iput_final fs/inode.c:1954 [inline] iput.part.0+0x621/0x1190 fs/inode.c:2006 iput+0x35/0x40 fs/inode.c:1969 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:467 __dentry_kill+0x1d0/0x600 fs/dcache.c:670 finish_dput+0x76/0x480 fs/dcache.c:879 dput.part.0+0x451/0x570 fs/dcache.c:928 dput+0x1f/0x30 fs/dcache.c:920 __fput+0x51c/0xb70 fs/file_table.c:476 task_work_run+0x150/0x240 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x87f/0x2bd0 kernel/exit.c:971 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112 get_signal+0x2671/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop kernel/entry/common.c:75 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x38a/0x8c0 kernel/entry/common.c:196 asm_exc_stack_segment+0x26/0x30 arch/x86/include/asm/idtentry.h:611 RIP: 0033:0x7f367f38f7d1 Code: Unable to access opcode bytes at 0x7f367f38f7a7. RSP: 002b:7fffffffffffffff EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f367f5e6180 RCX: 00007f367f38f7c9 RDX: ffffffffffffffff RSI: 7fffffffffffffff RDI: 0000000000000007 RBP: 00007f367f413f91 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f367f5e6218 R14: 00007f367f5e6180 R15: 00007ffd775dcb58 WARNING: kernel/sched/sched.h:1571 at lockdep_assert_rq_held kernel/sched/sched.h:1571 [inline], CPU#0: syz.0.825/9641 WARNING: kernel/sched/sched.h:1571 at lockdep_assert_rq_held kernel/sched/sched.h:1569 [inline], CPU#0: syz.0.825/9641 WARNING: kernel/sched/sched.h:1571 at update_rq_clock+0x34a/0xc70 kernel/sched/core.c:837, CPU#0: syz.0.825/9641 Modules linked in: CPU: 0 UID: 0 PID: 9641 Comm: syz.0.825 Tainted: G U L syzkaller #0 PREEMPT(full) Tainted: [U]=USER, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 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/0xc70 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 c3 cc cc cc cc a8 04 0f 84 9c fd ff ff 90 0f 0b 90 e9 93 fd ff ff 90 <0f> 0b 90 e9 4f fd ff ff 48 8d bb 18 0e 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffffc9000408ec38 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff8880b853adc0 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8daa5da7 RDI: ffffffff8bf2b400 RBP: 0000000000000001 R08: ffff8880b843b8c8 R09: fffffbfff2111fda R10: ffffffff9088fed7 R11: 0000000000000001 R12: ffffffff90892f54 R13: ffffffff8dd66620 R14: ffff88801da9bd00 R15: ffff8880b853adc0 FS: 0000000000000000(0000) GS:ffff8881248f8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0754db7560 CR3: 0000000075964000 CR4: 00000000003526f0 Call Trace: pick_next_task kernel/sched/core.c:6092 [inline] __schedule+0x20fd/0x5ee0 kernel/sched/core.c:6809 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7194 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_release+0x183/0x2d0 kernel/locking/lockdep.c:5893 Code: 0f c1 05 58 43 19 12 83 f8 01 0f 85 03 01 00 00 9c 58 f6 c4 02 0f 85 ee 00 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 <65> 48 2b 05 ed fb 18 12 0f 85 32 01 00 00 48 83 c4 18 5b 41 5c 41 RSP: 0018:ffffc9000408eef0 EFLAGS: 00000206 RAX: 2d227a4cd37b6700 RBX: ffffffff8e3c94a0 RCX: ffffc9000408eefc RDX: 0000000000000000 RSI: ffffffff8daa5da7 RDI: ffffffff8bf2b400 RBP: 0000000000000001 R08: 0000000000000001 R09: 00000000ffffffff R10: 0000000000000002 R11: 00000000000131fa R12: ffffffff816c7a34 R13: 0000000000000206 R14: ffff8880203b9e80 R15: 0000000000000001 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x3f9/0x20b0 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:165 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1433 [inline] free_unref_folios+0xa22/0x1610 mm/page_alloc.c:3030 folios_put_refs+0x4be/0x750 mm/swap.c:1002 folio_batch_release include/linux/pagevec.h:101 [inline] shmem_undo_range+0x58f/0x1140 mm/shmem.c:1137 shmem_truncate_range mm/shmem.c:1249 [inline] shmem_evict_inode+0x39e/0xbe0 mm/shmem.c:1379 evict+0x3c2/0xad0 fs/inode.c:837 iput_final fs/inode.c:1954 [inline] iput.part.0+0x621/0x1190 fs/inode.c:2006 iput+0x35/0x40 fs/inode.c:1969 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:467 __dentry_kill+0x1d0/0x600 fs/dcache.c:670 finish_dput+0x76/0x480 fs/dcache.c:879 dput.part.0+0x451/0x570 fs/dcache.c:928 dput+0x1f/0x30 fs/dcache.c:920 __fput+0x51c/0xb70 fs/file_table.c:476 task_work_run+0x150/0x240 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x87f/0x2bd0 kernel/exit.c:971 do_group_exit+0xd3/0x2a0 kernel/exit.c:1112 get_signal+0x2671/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop kernel/entry/common.c:75 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x38a/0x8c0 kernel/entry/common.c:196 asm_exc_stack_segment+0x26/0x30 arch/x86/include/asm/idtentry.h:611 RIP: 0033:0x7f367f38f7d1 Code: Unable to access opcode bytes at 0x7f367f38f7a7. RSP: 002b:7fffffffffffffff EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f367f5e6180 RCX: 00007f367f38f7c9 RDX: ffffffffffffffff RSI: 7fffffffffffffff RDI: 0000000000000007 RBP: 00007f367f413f91 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f367f5e6218 R14: 00007f367f5e6180 R15: 00007ffd775dcb58 ---------------- Code disassembly (best guess): 0: 0f c1 05 58 43 19 12 xadd %eax,0x12194358(%rip) # 0x1219435f 7: 83 f8 01 cmp $0x1,%eax a: 0f 85 03 01 00 00 jne 0x113 10: 9c pushf 11: 58 pop %rax 12: f6 c4 02 test $0x2,%ah 15: 0f 85 ee 00 00 00 jne 0x109 1b: 41 f7 c5 00 02 00 00 test $0x200,%r13d 22: 74 01 je 0x25 24: fb sti 25: 48 8b 44 24 10 mov 0x10(%rsp),%rax * 2a: 65 48 2b 05 ed fb 18 sub %gs:0x1218fbed(%rip),%rax # 0x1218fc1f <-- trapping instruction 31: 12 32: 0f 85 32 01 00 00 jne 0x16a 38: 48 83 c4 18 add $0x18,%rsp 3c: 5b pop %rbx 3d: 41 5c pop %r12 3f: 41 rex.B