------------[ cut here ]------------ ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.2.387/7586 is trying to acquire lock: ffffffff8eaf3f60 (console_owner){-.-.}-{0:0}, at: console_lock_spinning_enable+0x61/0x80 kernel/printk/printk.c:1902 but task is already holding lock: ffff88802b23b660 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:675 [inline] ffff88802b23b660 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x88/0x140 kernel/sched/core.c:659 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&rq->__lock){-.-.}-{2:2}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 _raw_spin_lock_nested+0x31/0x40 kernel/locking/spinlock.c:382 raw_spin_rq_lock_nested+0x2c/0x140 kernel/sched/core.c:667 raw_spin_rq_lock kernel/sched/sched.h:1653 [inline] _task_rq_lock+0xcf/0x500 kernel/sched/core.c:762 cgroup_move_task+0x81/0x320 kernel/sched/psi.c:1176 css_set_move_task+0x285/0x600 kernel/cgroup/cgroup.c:925 cgroup_post_fork+0x1f9/0x9a0 kernel/cgroup/cgroup.c:7009 copy_process+0x6b7a/0x8030 kernel/fork.c:2550 kernel_clone+0x176/0x9d0 kernel/fork.c:2748 user_mode_thread+0xcc/0x110 kernel/fork.c:2824 rest_init+0x21/0x260 init/main.c:682 start_kernel+0x48e/0x490 init/main.c:1175 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/0x158 -> #3 (&p->pi_lock){-.-.}-{2:2}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:166 class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:571 [inline] try_to_wake_up+0xbd/0x1c90 kernel/sched/core.c:4292 __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:1723 serial8250_handle_irq_locked+0x770/0x9a0 drivers/tty/serial/8250/8250_port.c:1837 serial8250_handle_irq.part.0+0xb4/0x530 drivers/tty/serial/8250/8250_port.c:1853 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1849 [inline] serial8250_default_handle_irq+0xc2/0x280 drivers/tty/serial/8250/8250_port.c:1867 serial8250_interrupt+0xf8/0x1b0 drivers/tty/serial/8250/8250_core.c:86 __handle_irq_event_percpu+0x232/0x880 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+0x34c/0x950 kernel/irq/chip.c:859 generic_handle_irq_desc include/linux/irqdesc.h:188 [inline] handle_irq arch/x86/kernel/irq.c:209 [inline] call_irq_handler arch/x86/kernel/irq.c:265 [inline] __common_interrupt+0xd8/0x2f0 arch/x86/kernel/irq.c:280 common_interrupt+0xb9/0xe0 arch/x86/kernel/irq.c:273 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:665 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:63 arch_safe_halt arch/x86/include/asm/paravirt.h:62 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:768 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x3a7/0x5b0 kernel/sched/idle.c:355 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:454 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x158 -> #2 (&tty->write_wait){-...}-{3:3}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:166 __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:1723 __start_tx+0x3e4/0x490 drivers/tty/serial/8250/8250_port.c:1430 serial8250_start_tx+0x368/0x540 drivers/tty/serial/8250/8250_port.c:1539 __uart_start+0x295/0x510 drivers/tty/serial/serial_core.c:161 uart_write+0x211/0xb20 drivers/tty/serial/serial_core.c:629 process_output_block drivers/tty/n_tty.c:557 [inline] n_tty_write+0x431/0x1160 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:595 [inline] vfs_write+0x6ac/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x840 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&port_lock_key){-.-.}-{3:3}: lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 kernel/locking/lockdep.c:5825 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:132 [inline] _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:166 uart_port_lock_irqsave include/linux/serial_core.h:719 [inline] serial8250_console_write+0x177/0x1a50 drivers/tty/serial/8250/8250_port.c:3344 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+0x3d5/0x5b0 kernel/printk/printk.c:4407 start_kernel+0x314/0x490 init/main.c:1112 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/0x158 -> #0 (console_owner){-.-.}-{0:0}: check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3165 check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x136c/0x1a40 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 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+0x34/0x141 lib/bug.c:248 report_bug+0xb2/0x220 lib/bug.c:286 handle_bug+0x16a/0x2a0 arch/x86/kernel/traps.c:436 exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:490 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:593 lockdep_assert_rq_held kernel/sched/sched.h:1641 [inline] lockdep_assert_rq_held kernel/sched/sched.h:1638 [inline] update_rq_clock+0x40a/0xd20 kernel/sched/core.c:865 pick_next_task kernel/sched/core.c:6338 [inline] __schedule+0x1e2d/0x6730 kernel/sched/core.c:7149 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa00 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 __exit_to_user_mode_loop kernel/entry/common.c:53 [inline] exit_to_user_mode_loop kernel/entry/common.c:101 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline] irqentry_exit+0x35c/0xa00 kernel/entry/common.c:165 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679 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.2.387/7586: #0: ffff88802b23b660 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:675 [inline] #0: ffff88802b23b660 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x88/0x140 kernel/sched/core.c:659 #1: ffffffff8ebd43a0 (console_lock){+.+.}-{0:0}, at: _printk+0xcf/0x110 kernel/printk/printk.c:2504 #2: ffffffff8ebd4418 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:305 [inline] #2: ffffffff8ebd4418 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:428 [inline] #2: ffffffff8ebd4418 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:291 [inline] #2: ffffffff8ebd4418 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfd/0xe50 kernel/printk/printk.c:3246 stack backtrace: CPU: 0 UID: 0 PID: 7586 Comm: syz.2.387 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 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+0xeb/0xe60 kernel/locking/lockdep.c:3165 check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x136c/0x1a40 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b9/0x370 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+0x34/0x141 lib/bug.c:248 report_bug+0xb2/0x220 lib/bug.c:286 handle_bug+0x16a/0x2a0 arch/x86/kernel/traps.c:436 exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:490 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:593 RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1641 [inline] RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1638 [inline] RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:865 Code: ab c8 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 58 20 e6 09 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 c0 0b 00 00 48 b8 00 00 00 00 00 RSP: 0000:ffffc9000746fc40 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff88802b33b600 RCX: 0000000000000001 RDX: 0000000000000046 RSI: ffffffff8e18433e RDI: ffffffff8c400c80 RBP: ffffc9000746fde8 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff9122b4d7 R11: 0000000000000000 R12: ffffffff9122e884 R13: ffff88802b33c4e0 R14: ffff88801c744a80 R15: ffff88802b23c198 pick_next_task kernel/sched/core.c:6338 [inline] __schedule+0x1e2d/0x6730 kernel/sched/core.c:7149 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa00 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__exit_to_user_mode_loop kernel/entry/common.c:53 [inline] RIP: 0010:exit_to_user_mode_loop kernel/entry/common.c:101 [inline] RIP: 0010:__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] RIP: 0010:irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline] RIP: 0010:irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline] RIP: 0010:irqentry_exit+0x35c/0xa00 kernel/entry/common.c:165 Code: 89 e8 25 30 10 00 00 48 3d 00 10 00 00 0f 84 19 02 00 00 41 f7 c5 37 03 00 00 0f 84 64 02 00 00 e8 49 56 59 f6 fb 41 f6 c5 30 <74> 21 66 90 41 0f b7 84 24 58 16 00 00 41 22 84 24 42 16 00 00 66 RSP: 0000:ffffc9000746ff00 EFLAGS: 00000202 RAX: 000000000000114f RBX: ffffc9000746ff48 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8e1aa1ca RDI: ffffffff8c400c80 RBP: ffffc9000746ff38 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888029d38000 R13: 0000000008000010 R14: 0000000000000000 R15: 0000000000000000 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679 RIP: 0023:0xf705b3e1 Code: 8b 44 24 08 8b 4c 24 10 89 58 04 8b 5c 24 14 83 c0 08 89 70 f8 89 0a 89 7a 04 8b 38 8b 0b 8b 6b 04 89 d3 89 7c 24 10 8b 78 04 <89> 44 24 08 e9 66 ff ff ff 8d b6 00 00 00 00 8b 7c 24 08 8b 4c 24 RSP: 002b:00000000ffb0fd00 EFLAGS: 00000286 RAX: 00000000f69dbd28 RBX: 00000000f69dc9f0 RCX: 000000008a2fb0fb RDX: 00000000f69dc9f0 RSI: 000000008a2fb0b3 RDI: 00000000ffffffff RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 debug_locks && !(lock_is_held(&(__rq_lockp(rq))->dep_map) != 0) WARNING: kernel/sched/sched.h:1641 at lockdep_assert_rq_held kernel/sched/sched.h:1641 [inline], CPU#0: syz.2.387/7586 WARNING: kernel/sched/sched.h:1641 at lockdep_assert_rq_held kernel/sched/sched.h:1638 [inline], CPU#0: syz.2.387/7586 WARNING: kernel/sched/sched.h:1641 at update_rq_clock+0x40a/0xd20 kernel/sched/core.c:865, CPU#0: syz.2.387/7586 Modules linked in: CPU: 0 UID: 0 PID: 7586 Comm: syz.2.387 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1641 [inline] RIP: 0010:lockdep_assert_rq_held kernel/sched/sched.h:1638 [inline] RIP: 0010:update_rq_clock+0x40a/0xd20 kernel/sched/core.c:865 Code: ab c8 0b 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f e9 58 20 e6 09 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 c0 0b 00 00 48 b8 00 00 00 00 00 RSP: 0000:ffffc9000746fc40 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffff88802b33b600 RCX: 0000000000000001 RDX: 0000000000000046 RSI: ffffffff8e18433e RDI: ffffffff8c400c80 RBP: ffffc9000746fde8 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff9122b4d7 R11: 0000000000000000 R12: ffffffff9122e884 R13: ffff88802b33c4e0 R14: ffff88801c744a80 R15: ffff88802b23c198 FS: 0000000000000000(0000) GS:ffff888096bdf000(0063) knlGS:0000000056d4f480 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000033f05ff8 CR3: 000000005f93d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: pick_next_task kernel/sched/core.c:6338 [inline] __schedule+0x1e2d/0x6730 kernel/sched/core.c:7149 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7556 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa00 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__exit_to_user_mode_loop kernel/entry/common.c:53 [inline] RIP: 0010:exit_to_user_mode_loop kernel/entry/common.c:101 [inline] RIP: 0010:__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] RIP: 0010:irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:244 [inline] RIP: 0010:irqentry_exit_to_user_mode include/linux/irq-entry-common.h:315 [inline] RIP: 0010:irqentry_exit+0x35c/0xa00 kernel/entry/common.c:165 Code: 89 e8 25 30 10 00 00 48 3d 00 10 00 00 0f 84 19 02 00 00 41 f7 c5 37 03 00 00 0f 84 64 02 00 00 e8 49 56 59 f6 fb 41 f6 c5 30 <74> 21 66 90 41 0f b7 84 24 58 16 00 00 41 22 84 24 42 16 00 00 66 RSP: 0000:ffffc9000746ff00 EFLAGS: 00000202 RAX: 000000000000114f RBX: ffffc9000746ff48 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8e1aa1ca RDI: ffffffff8c400c80 RBP: ffffc9000746ff38 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888029d38000 R13: 0000000008000010 R14: 0000000000000000 R15: 0000000000000000 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679 RIP: 0023:0xf705b3e1 Code: 8b 44 24 08 8b 4c 24 10 89 58 04 8b 5c 24 14 83 c0 08 89 70 f8 89 0a 89 7a 04 8b 38 8b 0b 8b 6b 04 89 d3 89 7c 24 10 8b 78 04 <89> 44 24 08 e9 66 ff ff ff 8d b6 00 00 00 00 8b 7c 24 08 8b 4c 24 RSP: 002b:00000000ffb0fd00 EFLAGS: 00000286 RAX: 00000000f69dbd28 RBX: 00000000f69dc9f0 RCX: 000000008a2fb0fb RDX: 00000000f69dc9f0 RSI: 000000008a2fb0b3 RDI: 00000000ffffffff RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: 89 e8 mov %ebp,%eax 2: 25 30 10 00 00 and $0x1030,%eax 7: 48 3d 00 10 00 00 cmp $0x1000,%rax d: 0f 84 19 02 00 00 je 0x22c 13: 41 f7 c5 37 03 00 00 test $0x337,%r13d 1a: 0f 84 64 02 00 00 je 0x284 20: e8 49 56 59 f6 call 0xf659566e 25: fb sti 26: 41 f6 c5 30 test $0x30,%r13b * 2a: 74 21 je 0x4d <-- trapping instruction 2c: 66 90 xchg %ax,%ax 2e: 41 0f b7 84 24 58 16 movzwl 0x1658(%r12),%eax 35: 00 00 37: 41 22 84 24 42 16 00 and 0x1642(%r12),%al 3e: 00 3f: 66 data16