FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0 Not tainted
------------------------------------------------------
syz.0.161/7229 is trying to acquire lock:
ffffffff8e2127e0 (console_owner){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:342 [inline]
ffffffff8e2127e0 (console_owner){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:267 [inline]
ffffffff8e2127e0 (console_owner){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
ffffffff8e2127e0 (console_owner){....}-{0:0}, at: console_flush_all+0x19f/0xea0 kernel/printk/printk.c:3157

but task is already holding lock:
ffff8880b873ea98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:598

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+0x2d/0x40 kernel/locking/spinlock.c:378
       raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:598
       raw_spin_rq_lock kernel/sched/sched.h:1505 [inline]
       task_rq_lock+0xc2/0x360 kernel/sched/core.c:700
       cgroup_move_task+0x97/0x5a0 kernel/sched/psi.c:1161
       css_set_move_task+0x72a/0x940 kernel/cgroup/cgroup.c:898
       cgroup_post_fork+0x252/0x880 kernel/cgroup/cgroup.c:6692
       copy_process+0x39dd/0x3d40 kernel/fork.c:2600
       kernel_clone+0x222/0x8e0 kernel/fork.c:2786
       user_mode_thread+0x12e/0x190 kernel/fork.c:2864
       rest_init+0x23/0x300 init/main.c:712
       start_kernel+0x47b/0x500 init/main.c:1105
       x86_64_start_reservations+0x26/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x9b/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #3 (&p->pi_lock){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
       try_to_wake_up+0xba/0x1490 kernel/sched/core.c:4165
       __wake_up_common kernel/sched/wait.c:89 [inline]
       __wake_up_common_lock+0x130/0x1e0 kernel/sched/wait.c:106
       tty_port_default_wakeup+0xa2/0xf0 drivers/tty/tty_port.c:69
       serial8250_tx_chars+0x6de/0x920 drivers/tty/serial/8250/8250_port.c:1821
       serial8250_handle_irq+0x62c/0xb70 drivers/tty/serial/8250/8250_port.c:1929
       serial8250_default_handle_irq+0xcd/0x1e0 drivers/tty/serial/8250/8250_port.c:1949
       serial8250_interrupt+0xa5/0x1e0 drivers/tty/serial/8250/8250_core.c:86
       __handle_irq_event_percpu+0x296/0xa60 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0x85/0x1f0 kernel/irq/handle.c:210
       handle_edge_irq+0x25b/0xc20 kernel/irq/chip.c:831
       generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
       handle_irq arch/x86/kernel/irq.c:247 [inline]
       call_irq_handler arch/x86/kernel/irq.c:259 [inline]
       __common_interrupt+0x132/0x230 arch/x86/kernel/irq.c:285
       common_interrupt+0xae/0xd0 arch/x86/kernel/irq.c:278
       asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:693
       native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
       arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
       acpi_safe_halt+0x1d/0x30 drivers/acpi/processor_idle.c:111
       acpi_idle_enter+0xdc/0x140 drivers/acpi/processor_idle.c:702
       cpuidle_enter_state+0x102/0x460 drivers/cpuidle/cpuidle.c:264
       cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:385
       call_cpuidle kernel/sched/idle.c:155 [inline]
       cpuidle_idle_call kernel/sched/idle.c:230 [inline]
       do_idle+0x371/0x5c0 kernel/sched/idle.c:326
       cpu_startup_entry+0x3e/0x60 kernel/sched/idle.c:424
       rest_init+0x2dc/0x300 init/main.c:747
       start_kernel+0x47b/0x500 init/main.c:1105
       x86_64_start_reservations+0x26/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x9b/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #2 (&tty->write_wait){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       __wake_up_common_lock+0x25/0x1e0 kernel/sched/wait.c:105
       tty_port_default_wakeup+0xa2/0xf0 drivers/tty/tty_port.c:69
       serial8250_tx_chars+0x6de/0x920 drivers/tty/serial/8250/8250_port.c:1821
       serial8250_handle_irq+0x62c/0xb70 drivers/tty/serial/8250/8250_port.c:1929
       serial8250_default_handle_irq+0xcd/0x1e0 drivers/tty/serial/8250/8250_port.c:1949
       serial8250_interrupt+0xa5/0x1e0 drivers/tty/serial/8250/8250_core.c:86
       __handle_irq_event_percpu+0x296/0xa60 kernel/irq/handle.c:158
       handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
       handle_irq_event+0x85/0x1f0 kernel/irq/handle.c:210
       handle_edge_irq+0x25b/0xc20 kernel/irq/chip.c:831
       generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
       handle_irq arch/x86/kernel/irq.c:247 [inline]
       call_irq_handler arch/x86/kernel/irq.c:259 [inline]
       __common_interrupt+0x132/0x230 arch/x86/kernel/irq.c:285
       common_interrupt+0xae/0xd0 arch/x86/kernel/irq.c:278
       asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:693
       __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
       _raw_spin_unlock_irqrestore+0xd4/0x140 kernel/locking/spinlock.c:194
       spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
       uart_port_unlock_irqrestore include/linux/serial_core.h:782 [inline]
       uart_write+0x3e0/0xa30 drivers/tty/serial/serial_core.c:636
       process_output_block drivers/tty/n_tty.c:574 [inline]
       n_tty_write+0xd5e/0x1230 drivers/tty/n_tty.c:2389
       iterate_tty_write drivers/tty/tty_io.c:1015 [inline]
       file_tty_write+0x546/0x9b0 drivers/tty/tty_io.c:1090
       new_sync_write fs/read_write.c:590 [inline]
       vfs_write+0xa35/0xd20 fs/read_write.c:683
       ksys_write+0x17f/0x2b0 fs/read_write.c:736
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x76/0x7e

-> #1 (&port_lock_key){-.-.}-{2:2}:
       __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
       _raw_spin_lock_irqsave+0xd1/0x120 kernel/locking/spinlock.c:162
       uart_port_lock_irqsave include/linux/serial_core.h:711 [inline]
       serial8250_console_write+0x1a3/0x1ec0 drivers/tty/serial/8250/8250_port.c:3352
       console_emit_next_record kernel/printk/printk.c:3092 [inline]
       console_flush_all+0x867/0xea0 kernel/printk/printk.c:3180
       __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
       console_unlock+0x14b/0x3b0 kernel/printk/printk.c:3279
       vprintk_emit+0x72c/0xa10 kernel/printk/printk.c:2407
       _printk+0xd1/0x120 kernel/printk/printk.c:2432
       register_console+0xbeb/0xfc0 kernel/printk/printk.c:4069
       univ8250_console_init+0x4e/0x90 drivers/tty/serial/8250/8250_core.c:513
       console_init+0x1b4/0x6d0 kernel/printk/printk.c:4262
       start_kernel+0x2d4/0x500 init/main.c:1040
       x86_64_start_reservations+0x26/0x30 arch/x86/kernel/head64.c:507
       x86_64_start_kernel+0x9b/0xa0 arch/x86/kernel/head64.c:488
       common_startup_64+0x13e/0x147

-> #0 (console_owner){....}-{0:0}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain kernel/locking/lockdep.c:3904 [inline]
       __lock_acquire+0x2f5e/0x8070 kernel/locking/lockdep.c:5202
       lock_acquire+0x1e9/0x540 kernel/locking/lockdep.c:5825
       console_lock_spinning_enable kernel/printk/printk.c:1905 [inline]
       console_emit_next_record kernel/printk/printk.c:3086 [inline]
       console_flush_all+0x7f4/0xea0 kernel/printk/printk.c:3180
       __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
       console_unlock+0x14b/0x3b0 kernel/printk/printk.c:3279
       vprintk_emit+0x72c/0xa10 kernel/printk/printk.c:2407
       _printk+0xd1/0x120 kernel/printk/printk.c:2432
       fail_dump lib/fault-inject.c:46 [inline]
       should_fail_ex+0x38d/0x4e0 lib/fault-inject.c:154
       strncpy_from_user+0x32/0x250 lib/strncpy_from_user.c:118
       strncpy_from_user_nofault+0x6d/0x140 mm/maccess.c:186
       bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
       ____bpf_probe_read_user_str kernel/trace/bpf_trace.c:224 [inline]
       bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:221
       bpf_prog_bc7c5c6b9645592f+0x36/0x38
       bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
       __bpf_prog_run include/linux/filter.h:701 [inline]
       bpf_prog_run include/linux/filter.h:708 [inline]
       __bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
       bpf_trace_run4+0x330/0x590 kernel/trace/bpf_trace.c:2359
       trace_sched_switch include/trace/events/sched.h:222 [inline]
       __schedule+0x2295/0x4bd0 kernel/sched/core.c:6687
       preempt_schedule_irq+0xf7/0x1b0 kernel/sched/core.c:7012
       irqentry_exit+0x57/0x80 kernel/entry/common.c:354
       asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:707
       lock_acquire+0x151/0x540 kernel/locking/lockdep.c:5801
       rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
       rcu_read_lock include/linux/rcupdate.h:849 [inline]
       __fget_files+0x4a/0x470 fs/file.c:1004
       __fget_light fs/file.c:1120 [inline]
       fdget+0x168/0x1e0 fs/file.c:1128
       sockfd_lookup_light net/socket.c:554 [inline]
       __sys_sendmsg+0xe3/0x380 net/socket.c:2686
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x76/0x7e

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.0.161/7229:
 #0: ffff8880b873ea98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 kernel/sched/core.c:598
 #1: ffffffff8e3371e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #1: ffffffff8e3371e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffffff8e3371e0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2315 [inline]
 #1: ffffffff8e3371e0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run4+0x240/0x590 kernel/trace/bpf_trace.c:2359
 #2: ffffffff8e212840 (console_lock){+.+.}-{0:0}, at: _printk+0xd1/0x120 kernel/printk/printk.c:2432
 #3: ffffffff8e212450 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:342 [inline]
 #3: ffffffff8e212450 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:267 [inline]
 #3: ffffffff8e212450 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:288 [inline]
 #3: ffffffff8e212450 (console_srcu){....}-{0:0}, at: console_flush_all+0x19f/0xea0 kernel/printk/printk.c:3157

stack backtrace:
CPU: 1 UID: 0 PID: 7229 Comm: syz.0.161 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:120
 print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2074
 check_noncircular+0x375/0x4a0 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain kernel/locking/lockdep.c:3904 [inline]
 __lock_acquire+0x2f5e/0x8070 kernel/locking/lockdep.c:5202
 lock_acquire+0x1e9/0x540 kernel/locking/lockdep.c:5825
 console_lock_spinning_enable kernel/printk/printk.c:1905 [inline]
 console_emit_next_record kernel/printk/printk.c:3086 [inline]
 console_flush_all+0x7f4/0xea0 kernel/printk/printk.c:3180
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0x14b/0x3b0 kernel/printk/printk.c:3279
 vprintk_emit+0x72c/0xa10 kernel/printk/printk.c:2407
 _printk+0xd1/0x120 kernel/printk/printk.c:2432
 fail_dump lib/fault-inject.c:46 [inline]
 should_fail_ex+0x38d/0x4e0 lib/fault-inject.c:154
 strncpy_from_user+0x32/0x250 lib/strncpy_from_user.c:118
 strncpy_from_user_nofault+0x6d/0x140 mm/maccess.c:186
 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
 ____bpf_probe_read_user_str kernel/trace/bpf_trace.c:224 [inline]
 bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:221
 bpf_prog_bc7c5c6b9645592f+0x36/0x38
 bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
 bpf_trace_run4+0x330/0x590 kernel/trace/bpf_trace.c:2359
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2295/0x4bd0 kernel/sched/core.c:6687
 preempt_schedule_irq+0xf7/0x1b0 kernel/sched/core.c:7012
 irqentry_exit+0x57/0x80 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lock_acquire+0x151/0x540
Code: 1c 25 c0 d7 03 00 48 81 c3 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 dd 02 00 00 83 3b 00 0f 85 62 01 00 00 <4c> 8d bc 24 80 00 00 00 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08
RSP: 0018:ffffc900034afa80 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880115246dc RCX: ffffffff816fbf30
RDX: 0000000000000000 RSI: ffffffff8bfc9540 RDI: ffffffff8bfc9500
RBP: ffffc900034afbc8 R08: ffffffff8fb0f1af R09: 1ffffffff1f61e35
R10: dffffc0000000000 R11: fffffbfff1f61e36 R12: 1ffff92000695f58
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888079346d00
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 __fget_files+0x4a/0x470 fs/file.c:1004
 __fget_light fs/file.c:1120 [inline]
 fdget+0x168/0x1e0 fs/file.c:1128
 sockfd_lookup_light net/socket.c:554 [inline]
 __sys_sendmsg+0xe3/0x380 net/socket.c:2686
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fbb0257e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbb033aa038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbb02736130 RCX: 00007fbb0257e719
RDX: 0000000000000000 RSI: 0000000020000300 RDI: ffffffffffffffff
RBP: 00007fbb033aa090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fbb02736130 R15: 00007ffc4ef45008
 </TASK>
CPU: 1 UID: 0 PID: 7229 Comm: syz.0.161 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:53 [inline]
 should_fail_ex+0x3ac/0x4e0 lib/fault-inject.c:154
 strncpy_from_user+0x32/0x250 lib/strncpy_from_user.c:118
 strncpy_from_user_nofault+0x6d/0x140 mm/maccess.c:186
 bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:215 [inline]
 ____bpf_probe_read_user_str kernel/trace/bpf_trace.c:224 [inline]
 bpf_probe_read_user_str+0x26/0x70 kernel/trace/bpf_trace.c:221
 bpf_prog_bc7c5c6b9645592f+0x36/0x38
 bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2316 [inline]
 bpf_trace_run4+0x330/0x590 kernel/trace/bpf_trace.c:2359
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x2295/0x4bd0 kernel/sched/core.c:6687
 preempt_schedule_irq+0xf7/0x1b0 kernel/sched/core.c:7012
 irqentry_exit+0x57/0x80 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lock_acquire+0x151/0x540
Code: 1c 25 c0 d7 03 00 48 81 c3 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 dd 02 00 00 83 3b 00 0f 85 62 01 00 00 <4c> 8d bc 24 80 00 00 00 4c 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08
RSP: 0018:ffffc900034afa80 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff8880115246dc RCX: ffffffff816fbf30
RDX: 0000000000000000 RSI: ffffffff8bfc9540 RDI: ffffffff8bfc9500
RBP: ffffc900034afbc8 R08: ffffffff8fb0f1af R09: 1ffffffff1f61e35
R10: dffffc0000000000 R11: fffffbfff1f61e36 R12: 1ffff92000695f58
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888079346d00
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 __fget_files+0x4a/0x470 fs/file.c:1004
 __fget_light fs/file.c:1120 [inline]
 fdget+0x168/0x1e0 fs/file.c:1128
 sockfd_lookup_light net/socket.c:554 [inline]
 __sys_sendmsg+0xe3/0x380 net/socket.c:2686
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x7e/0x180 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fbb0257e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fbb033aa038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbb02736130 RCX: 00007fbb0257e719
RDX: 0000000000000000 RSI: 0000000020000300 RDI: ffffffffffffffff
RBP: 00007fbb033aa090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 00007fbb02736130 R15: 00007ffc4ef45008
 </TASK>
----------------
Code disassembly (best guess):
   0:	1c 25                	sbb    $0x25,%al
   2:	c0 d7 03             	rcl    $0x3,%bh
   5:	00 48 81             	add    %cl,-0x7f(%rax)
   8:	c3                   	ret
   9:	dc 0a                	fmull  (%rdx)
   b:	00 00                	add    %al,(%rax)
   d:	48 89 d8             	mov    %rbx,%rax
  10:	48 c1 e8 03          	shr    $0x3,%rax
  14:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
  19:	84 c0                	test   %al,%al
  1b:	0f 85 dd 02 00 00    	jne    0x2fe
  21:	83 3b 00             	cmpl   $0x0,(%rbx)
  24:	0f 85 62 01 00 00    	jne    0x18c
* 2a:	4c 8d bc 24 80 00 00 	lea    0x80(%rsp),%r15 <-- trapping instruction
  31:	00
  32:	4c 89 fb             	mov    %r15,%rbx
  35:	48 c1 eb 03          	shr    $0x3,%rbx
  39:	42 80 3c 2b 00       	cmpb   $0x0,(%rbx,%r13,1)
  3e:	74 08                	je     0x48