------------[ cut here ]------------ ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.2.995/9835 is trying to acquire lock: ffffffff8e6f3880 (console_owner){-...}-{0:0}, at: console_lock_spinning_enable+0x61/0x80 kernel/printk/printk.c:1902 but task is already holding lock: ffff8880b843b360 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:655 [inline] ffff8880b843b360 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x88/0x140 kernel/sched/core.c:639 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+0x2c/0x140 kernel/sched/core.c:647 raw_spin_rq_lock kernel/sched/sched.h:1618 [inline] _task_rq_lock+0xcf/0x490 kernel/sched/core.c:747 cgroup_move_task+0x81/0x2b0 kernel/sched/psi.c:1170 css_set_move_task+0x285/0x600 kernel/cgroup/cgroup.c:948 cgroup_post_fork+0x202/0x9b0 kernel/cgroup/cgroup.c:6993 copy_process+0x5717/0x7a40 kernel/fork.c:2467 kernel_clone+0xfc/0x9a0 kernel/fork.c:2653 user_mode_thread+0xcc/0x110 kernel/fork.c:2729 rest_init+0x21/0x260 init/main.c:725 start_kernel+0x47f/0x480 init/main.c:1210 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x12b/0x130 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:132 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:570 [inline] try_to_wake_up+0xb2/0x1a80 kernel/sched/core.c:4130 __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_port_default_wakeup+0x47/0x60 drivers/tty/tty_port.c:67 serial8250_tx_chars+0x68f/0x860 drivers/tty/serial/8250/8250_port.c:1721 serial8250_handle_irq_locked+0x5e6/0x7e0 drivers/tty/serial/8250/8250_port.c:1825 serial8250_handle_irq.part.0+0xb8/0x550 drivers/tty/serial/8250/8250_port.c:1841 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1837 [inline] serial8250_default_handle_irq+0xc2/0x2a0 drivers/tty/serial/8250/8250_port.c:1855 serial8250_interrupt+0xf8/0x1d0 drivers/tty/serial/8250/8250_core.c:86 __handle_irq_event_percpu+0x232/0x8e0 kernel/irq/handle.c:209 handle_irq_event_percpu kernel/irq/handle.c:246 [inline] handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:263 handle_edge_irq+0x375/0x970 kernel/irq/chip.c:855 generic_handle_irq_desc include/linux/irqdesc.h:186 [inline] handle_irq arch/x86/kernel/irq.c:262 [inline] call_irq_handler arch/x86/kernel/irq.c:318 [inline] __common_interrupt+0xd8/0x2f0 arch/x86/kernel/irq.c:333 common_interrupt+0xb9/0xe0 arch/x86/kernel/irq.c:326 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:688 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:178 [inline] _raw_spin_unlock_irqrestore+0x31/0x80 kernel/locking/spinlock.c:194 __pollwait+0x271/0x470 fs/select.c:231 poll_wait include/linux/poll.h:45 [inline] sock_poll_wait include/net/sock.h:2423 [inline] datagram_poll_queue+0x85/0x4e0 net/core/datagram.c:944 sock_poll+0x160/0x510 net/socket.c:1443 vfs_poll include/linux/poll.h:82 [inline] do_pollfd fs/select.c:866 [inline] do_poll fs/select.c:909 [inline] do_sys_poll+0x6e5/0xeb0 fs/select.c:1004 __do_sys_ppoll fs/select.c:1106 [inline] __se_sys_ppoll fs/select.c:1086 [inline] __x64_sys_ppoll+0x2b5/0x350 fs/select.c:1086 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 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:132 [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+0x47/0x60 drivers/tty/tty_port.c:67 serial8250_tx_chars+0x68f/0x860 drivers/tty/serial/8250/8250_port.c:1721 serial8250_handle_irq_locked+0x5e6/0x7e0 drivers/tty/serial/8250/8250_port.c:1825 serial8250_handle_irq.part.0+0xb8/0x550 drivers/tty/serial/8250/8250_port.c:1841 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1837 [inline] serial8250_default_handle_irq+0xc2/0x2a0 drivers/tty/serial/8250/8250_port.c:1855 serial8250_interrupt+0xf8/0x1d0 drivers/tty/serial/8250/8250_core.c:86 __handle_irq_event_percpu+0x232/0x8e0 kernel/irq/handle.c:209 handle_irq_event_percpu kernel/irq/handle.c:246 [inline] handle_irq_event+0xab/0x1e0 kernel/irq/handle.c:263 handle_edge_irq+0x375/0x970 kernel/irq/chip.c:855 generic_handle_irq_desc include/linux/irqdesc.h:186 [inline] handle_irq arch/x86/kernel/irq.c:262 [inline] call_irq_handler arch/x86/kernel/irq.c:318 [inline] __common_interrupt+0xd8/0x2f0 arch/x86/kernel/irq.c:333 common_interrupt+0xb9/0xe0 arch/x86/kernel/irq.c:326 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:62 arch_safe_halt arch/x86/include/asm/paravirt.h:73 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:767 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x464/0x590 kernel/sched/idle.c:352 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:451 rest_init+0x251/0x260 init/main.c:760 start_kernel+0x47f/0x480 init/main.c:1210 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x12b/0x130 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:132 [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:3316 console_emit_next_record kernel/printk/printk.c:3183 [inline] console_flush_one_record+0x790/0xe50 kernel/printk/printk.c:3269 console_flush_all kernel/printk/printk.c:3343 [inline] __console_flush_and_unlock kernel/printk/printk.c:3373 [inline] console_unlock+0x103/0x260 kernel/printk/printk.c:3413 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479 _printk+0xcf/0x110 kernel/printk/printk.c:2504 register_console.cold+0xc0/0x248 kernel/printk/printk.c:4208 univ8250_console_init+0x6f/0x80 drivers/tty/serial/8250/8250_core.c:515 console_init+0x423/0x620 kernel/printk/printk.c:4407 start_kernel+0x305/0x480 init/main.c:1147 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310 x86_64_start_kernel+0x12b/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+0x1cf/0x380 kernel/locking/lockdep.c:5825 console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1902 console_emit_next_record kernel/printk/printk.c:3177 [inline] console_flush_one_record+0x739/0xe50 kernel/printk/printk.c:3269 console_flush_all kernel/printk/printk.c:3343 [inline] __console_flush_and_unlock kernel/printk/printk.c:3373 [inline] console_unlock+0x103/0x260 kernel/printk/printk.c:3413 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479 _printk+0xcf/0x110 kernel/printk/printk.c:2504 __report_bug.cold+0x15/0x137 lib/bug.c:240 report_bug+0xb2/0x220 lib/bug.c:278 handle_bug+0x16a/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:1603 [inline] lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline] update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850 pick_next_task kernel/sched/core.c:6132 [inline] __schedule+0x1b7d/0x6120 kernel/sched/core.c:6852 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 __sanitizer_cov_trace_pc+0x54/0x70 kernel/kcov.c:222 __handle_mm_fault+0x127/0x2b60 mm/memory.c:6358 handle_mm_fault+0x36d/0xa20 mm/memory.c:6624 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x1f1/0x9e0 mm/gup.c:1912 madvise_populate mm/madvise.c:974 [inline] madvise_do_behavior+0x354/0x510 mm/madvise.c:1933 do_madvise+0x195/0x240 mm/madvise.c:2028 __do_sys_madvise mm/madvise.c:2037 [inline] __se_sys_madvise mm/madvise.c:2035 [inline] __x64_sys_madvise+0xa9/0x110 mm/madvise.c:2035 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f 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 *** 4 locks held by syz.2.995/9835: #0: ffff888028f2b440 (&mm->mmap_lock){++++}-{4:4}, at: mmap_read_lock_killable include/linux/mmap_lock.h:601 [inline] #0: ffff888028f2b440 (&mm->mmap_lock){++++}-{4:4}, at: __get_user_pages_locked mm/gup.c:1744 [inline] #0: ffff888028f2b440 (&mm->mmap_lock){++++}-{4:4}, at: faultin_page_range+0x3c7/0x9e0 mm/gup.c:1912 #1: ffff8880b843b360 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:655 [inline] #1: ffff8880b843b360 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x88/0x140 kernel/sched/core.c:639 #2: ffffffff8e7d3cc0 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x110 kernel/printk/printk.c:2504 #3: ffffffff8e7d3d38 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:317 [inline] #3: ffffffff8e7d3d38 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline] #3: ffffffff8e7d3d38 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline] #3: ffffffff8e7d3d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfd/0xe50 kernel/printk/printk.c:3246 stack backtrace: CPU: 0 UID: 0 PID: 9835 Comm: syz.2.995 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Call Trace: __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+0x1cf/0x380 kernel/locking/lockdep.c:5825 console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1902 console_emit_next_record kernel/printk/printk.c:3177 [inline] console_flush_one_record+0x739/0xe50 kernel/printk/printk.c:3269 console_flush_all kernel/printk/printk.c:3343 [inline] __console_flush_and_unlock kernel/printk/printk.c:3373 [inline] console_unlock+0x103/0x260 kernel/printk/printk.c:3413 vprintk_emit+0x407/0x6b0 kernel/printk/printk.c:2479 _printk+0xcf/0x110 kernel/printk/printk.c:2504 __report_bug.cold+0x15/0x137 lib/bug.c:240 report_bug+0xb2/0x220 lib/bug.c:278 handle_bug+0x16a/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:1603 [inline] RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline] RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850 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 df fc ff ff 90 0f 0b 90 e9 d6 fc ff ff 90 <0f> 0b 90 e9 92 fc ff ff 4c 8d 83 40 0b 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffffc90003b275d0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff8880b853b300 RCX: 0000000000000001 RDX: 0000000000000046 RSI: ffffffff8de5d4f2 RDI: ffffffff8c1b1da0 RBP: ffffc90003b27778 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff90d9ff17 R11: 0000000000000000 R12: ffffffff90da32e4 R13: ffff8880b853c140 R14: ffff88801e691e80 R15: ffff8880b853b300 pick_next_task kernel/sched/core.c:6132 [inline] __schedule+0x1b7d/0x6120 kernel/sched/core.c:6852 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__sanitizer_cov_trace_pc+0x54/0x70 kernel/kcov.c:222 Code: c3 cc cc cc cc 8b 82 a4 16 00 00 85 c0 74 f1 8b 82 80 16 00 00 83 f8 02 75 e6 48 8b 8a 88 16 00 00 8b 92 84 16 00 00 48 8b 01 <48> 83 c0 01 48 39 d0 73 cd 48 89 01 48 89 34 c1 c3 cc cc cc cc 0f RSP: 0018:ffffc90003b27880 EFLAGS: 00000246 RAX: 000000000007ffff RBX: 0000000000100cca RCX: ffffc90012bba000 RDX: 0000000000080000 RSI: ffffffff8259e467 RDI: ffff8880388017f8 RBP: ffff8880372d2a80 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000015 R13: 0000000000000000 R14: ffff888038ec3280 R15: 0000000000000000 __handle_mm_fault+0x127/0x2b60 mm/memory.c:6358 handle_mm_fault+0x36d/0xa20 mm/memory.c:6624 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x1f1/0x9e0 mm/gup.c:1912 madvise_populate mm/madvise.c:974 [inline] madvise_do_behavior+0x354/0x510 mm/madvise.c:1933 do_madvise+0x195/0x240 mm/madvise.c:2028 __do_sys_madvise mm/madvise.c:2037 [inline] __se_sys_madvise mm/madvise.c:2035 [inline] __x64_sys_madvise+0xa9/0x110 mm/madvise.c:2035 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa2cdb9c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa2ce98c028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007fa2cde16180 RCX: 00007fa2cdb9c819 RDX: 0000000000000017 RSI: ffffffffffff0005 RDI: 0000000000000000 RBP: 00007fa2cdc32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa2cde16218 R14: 00007fa2cde16180 R15: 00007ffd3890ec48 debug_locks && !(lock_is_held(&(__rq_lockp(rq))->dep_map) != 0) WARNING: kernel/sched/sched.h:1603 at lockdep_assert_rq_held kernel/sched/sched.h:1603 [inline], CPU#0: syz.2.995/9835 WARNING: kernel/sched/sched.h:1603 at lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline], CPU#0: syz.2.995/9835 WARNING: kernel/sched/sched.h:1603 at update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850, CPU#0: syz.2.995/9835 Modules linked in: CPU: 0 UID: 0 PID: 9835 Comm: syz.2.995 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1603 [inline] RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1600 [inline] RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:850 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 df fc ff ff 90 0f 0b 90 e9 d6 fc ff ff 90 <0f> 0b 90 e9 92 fc ff ff 4c 8d 83 40 0b 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffffc90003b275d0 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff8880b853b300 RCX: 0000000000000001 RDX: 0000000000000046 RSI: ffffffff8de5d4f2 RDI: ffffffff8c1b1da0 RBP: ffffc90003b27778 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff90d9ff17 R11: 0000000000000000 R12: ffffffff90da32e4 R13: ffff8880b853c140 R14: ffff88801e691e80 R15: ffff8880b853b300 FS: 00007fa2ce98c6c0(0000) GS:ffff888124340000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0059c799d3 CR3: 000000002e356000 CR4: 00000000003526f0 Call Trace: pick_next_task kernel/sched/core.c:6132 [inline] __schedule+0x1b7d/0x6120 kernel/sched/core.c:6852 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7238 irqentry_exit+0x17b/0x670 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__sanitizer_cov_trace_pc+0x54/0x70 kernel/kcov.c:222 Code: c3 cc cc cc cc 8b 82 a4 16 00 00 85 c0 74 f1 8b 82 80 16 00 00 83 f8 02 75 e6 48 8b 8a 88 16 00 00 8b 92 84 16 00 00 48 8b 01 <48> 83 c0 01 48 39 d0 73 cd 48 89 01 48 89 34 c1 c3 cc cc cc cc 0f RSP: 0018:ffffc90003b27880 EFLAGS: 00000246 RAX: 000000000007ffff RBX: 0000000000100cca RCX: ffffc90012bba000 RDX: 0000000000080000 RSI: ffffffff8259e467 RDI: ffff8880388017f8 RBP: ffff8880372d2a80 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000015 R13: 0000000000000000 R14: ffff888038ec3280 R15: 0000000000000000 __handle_mm_fault+0x127/0x2b60 mm/memory.c:6358 handle_mm_fault+0x36d/0xa20 mm/memory.c:6624 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x1f1/0x9e0 mm/gup.c:1912 madvise_populate mm/madvise.c:974 [inline] madvise_do_behavior+0x354/0x510 mm/madvise.c:1933 do_madvise+0x195/0x240 mm/madvise.c:2028 __do_sys_madvise mm/madvise.c:2037 [inline] __se_sys_madvise mm/madvise.c:2035 [inline] __x64_sys_madvise+0xa9/0x110 mm/madvise.c:2035 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa2cdb9c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa2ce98c028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007fa2cde16180 RCX: 00007fa2cdb9c819 RDX: 0000000000000017 RSI: ffffffffffff0005 RDI: 0000000000000000 RBP: 00007fa2cdc32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa2cde16218 R14: 00007fa2cde16180 R15: 00007ffd3890ec48 ---------------- Code disassembly (best guess): 0: c3 ret 1: cc int3 2: cc int3 3: cc int3 4: cc int3 5: 8b 82 a4 16 00 00 mov 0x16a4(%rdx),%eax b: 85 c0 test %eax,%eax d: 74 f1 je 0x0 f: 8b 82 80 16 00 00 mov 0x1680(%rdx),%eax 15: 83 f8 02 cmp $0x2,%eax 18: 75 e6 jne 0x0 1a: 48 8b 8a 88 16 00 00 mov 0x1688(%rdx),%rcx 21: 8b 92 84 16 00 00 mov 0x1684(%rdx),%edx 27: 48 8b 01 mov (%rcx),%rax * 2a: 48 83 c0 01 add $0x1,%rax <-- trapping instruction 2e: 48 39 d0 cmp %rdx,%rax 31: 73 cd jae 0x0 33: 48 89 01 mov %rax,(%rcx) 36: 48 89 34 c1 mov %rsi,(%rcx,%rax,8) 3a: c3 ret 3b: cc int3 3c: cc int3 3d: cc int3 3e: cc int3 3f: 0f .byte 0xf