FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
syz.1.194/6770 is trying to acquire lock:
ffffffff8e2d1680 (console_owner){-.-.}-{0:0}, at: console_lock_spinning_enable+0x61/0x80 kernel/printk/printk.c:1897
but task is already holding lock:
ffff8880b843a4d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:646 [inline]
ffff8880b843a4d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:631
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:638
raw_spin_rq_lock kernel/sched/sched.h:1547 [inline]
task_rq_lock+0xcf/0x490 kernel/sched/core.c:738
cgroup_move_task+0x81/0x2a0 kernel/sched/psi.c:1170
css_set_move_task+0x288/0x5f0 kernel/cgroup/cgroup.c:951
cgroup_post_fork+0x201/0x9d0 kernel/cgroup/cgroup.c:6913
copy_process+0x602d/0x76a0 kernel/fork.c:2425
kernel_clone+0xfc/0x930 kernel/fork.c:2609
user_mode_thread+0xc8/0x110 kernel/fork.c:2685
rest_init+0x23/0x2b0 init/main.c:722
start_kernel+0x3f6/0x4e0 init/main.c:1111
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
-> #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+0xb7/0x1870 kernel/sched/core.c:4181
create_worker+0x339/0x7e0 kernel/workqueue.c:2834
workqueue_init+0x4e5/0xbd0 kernel/workqueue.c:7944
kernel_init_freeable+0x332/0x920 init/main.c:1578
kernel_init+0x1c/0x2b0 init/main.c:1483
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
-> #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+0x26b/0x1160 kernel/workqueue.c:2301
queue_work_on+0x15f/0x1f0 kernel/workqueue.c:2392
queue_work include/linux/workqueue.h:669 [inline]
rpm_suspend+0xeba/0x11d0 drivers/base/power/runtime.c:688
rpm_idle+0x607/0x780 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/0x4b0 drivers/base/dd.c:1049
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537
device_add+0x1148/0x1aa0 drivers/base/core.c:3689
serial_base_port_add+0x362/0x4c0 drivers/tty/serial/serial_base_bus.c:183
serial_core_port_device_add drivers/tty/serial/serial_core.c:3284 [inline]
serial_core_register_port+0x13c/0x25d0 drivers/tty/serial/serial_core.c:3323
serial8250_register_8250_port+0x15a3/0x23e0 drivers/tty/serial/8250/8250_core.c:818
serial_pnp_probe+0x431/0x910 drivers/tty/serial/8250/8250_pnp.c:480
pnp_device_probe+0x2a8/0x4d0 drivers/pnp/driver.c:111
call_driver_probe drivers/base/dd.c:581 [inline]
really_probe+0x241/0xa90 drivers/base/dd.c:659
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:801
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831
__driver_attach+0x283/0x580 drivers/base/dd.c:1217
bus_for_each_dev+0x13e/0x1d0 drivers/base/bus.c:370
bus_add_driver+0x2e9/0x690 drivers/base/bus.c:678
driver_register+0x15c/0x4b0 drivers/base/driver.c:249
serial8250_init+0xc9/0x1e0 drivers/tty/serial/8250/8250_platform.c:320
do_one_initcall+0x123/0x6e0 init/main.c:1283
do_initcall_level init/main.c:1345 [inline]
do_initcalls init/main.c:1361 [inline]
do_basic_setup init/main.c:1380 [inline]
kernel_init_freeable+0x5c8/0x920 init/main.c:1593
kernel_init+0x1c/0x2b0 init/main.c:1483
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
-> #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+0x1b0/0x500 drivers/tty/serial/serial_core.c:149
uart_write+0x218/0xb30 drivers/tty/serial/serial_core.c:633
process_output_block drivers/tty/n_tty.c:561 [inline]
n_tty_write+0x41e/0x11e0 drivers/tty/n_tty.c:2377
iterate_tty_write drivers/tty/tty_io.c:1006 [inline]
file_tty_write.constprop.0+0x503/0x9b0 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+0xd4/0x150 drivers/tty/tty_io.c:1105
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x7d3/0x11d0 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+0xcd/0xfa0 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+0x181/0x1890 drivers/tty/serial/8250/8250_port.c:3301
console_emit_next_record kernel/printk/printk.c:3111 [inline]
console_flush_all+0x801/0xc60 kernel/printk/printk.c:3199
__console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3298
vprintk_emit+0x3d7/0x680 kernel/printk/printk.c:2423
_printk+0xc7/0x100 kernel/printk/printk.c:2448
register_console+0xc2d/0x11b0 kernel/printk/printk.c:4099
univ8250_console_init+0x5f/0x90 drivers/tty/serial/8250/8250_core.c:511
console_init+0x152/0x680 kernel/printk/printk.c:4298
start_kernel+0x29f/0x4e0 init/main.c:1048
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+0x126f/0x1c90 kernel/locking/lockdep.c:5237
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1897
console_emit_next_record kernel/printk/printk.c:3105 [inline]
console_flush_all+0x7aa/0xc60 kernel/printk/printk.c:3199
__console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3298
vprintk_emit+0x3d7/0x680 kernel/printk/printk.c:2423
_printk+0xc7/0x100 kernel/printk/printk.c:2448
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x4e7/0x640 lib/fault-inject.c:174
strncpy_from_user+0x3b/0x2e0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:192
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:214 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:309 [inline]
bpf_probe_read_compat_str+0xe8/0x180 kernel/trace/bpf_trace.c:305
bpf_prog_90bb9c41664be20a+0x57/0x68
bpf_dispatcher_nop_func include/linux/bpf.h:1350 [inline]
__bpf_prog_run include/linux/filter.h:721 [inline]
bpf_prog_run include/linux/filter.h:728 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2075 [inline]
bpf_trace_run2+0x239/0x590 kernel/trace/bpf_trace.c:2116
__bpf_trace_contention_end+0xc9/0x110 include/trace/events/lock.h:122
__do_trace_contention_end include/trace/events/lock.h:122 [inline]
trace_contention_end.constprop.0+0xdb/0x160 include/trace/events/lock.h:122
__pv_queued_spin_lock_slowpath+0x281/0xcf0 kernel/locking/qspinlock.c:374
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
raw_spin_rq_lock_nested kernel/sched/core.c:646 [inline]
raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:631
raw_spin_rq_lock kernel/sched/sched.h:1547 [inline]
rq_lock kernel/sched/sched.h:1869 [inline]
__schedule+0x307/0x5de0 kernel/sched/core.c:6833
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7113
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
rcu_preempt_deferred_qs_irqrestore+0x500/0xbc0 kernel/rcu/tree_plugin.h:573
rcu_read_unlock_special kernel/rcu/tree_plugin.h:770 [inline]
__rcu_read_unlock+0x2bc/0x550 kernel/rcu/tree_plugin.h:438
rcu_read_unlock include/linux/rcupdate.h:899 [inline]
xa_load+0x153/0x2c0 lib/xarray.c:1621
__io_uring_add_tctx_node+0xb1/0x500 io_uring/tctx.c:125
__io_uring_add_tctx_node_from_submit+0x89/0x130 io_uring/tctx.c:154
io_uring_add_tctx_node io_uring/tctx.h:32 [inline]
__do_sys_io_uring_enter+0x1239/0x1630 io_uring/io_uring.c:3509
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 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.1.194/6770:
#0: ffff8880b843a4d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:646 [inline]
#0: ffff8880b843a4d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:631
#1: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#1: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:867 [inline]
#1: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2074 [inline]
#1: ffffffff8e3c4460 (rcu_read_lock){....}-{1:3}, at: bpf_trace_run2+0x1bc/0x590 kernel/trace/bpf_trace.c:2116
#2: ffffffff8e3b1ac0 (console_lock){+.+.}-{0:0}, at: _printk+0xc7/0x100 kernel/printk/printk.c:2448
#3: ffffffff8e3b1b30 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire include/linux/rcupdate.h:336 [inline]
#3: ffffffff8e3b1b30 (console_srcu){....}-{0:0}, at: srcu_read_lock_nmisafe include/linux/srcu.h:335 [inline]
#3: ffffffff8e3b1b30 (console_srcu){....}-{0:0}, at: console_srcu_read_lock kernel/printk/printk.c:289 [inline]
#3: ffffffff8e3b1b30 (console_srcu){....}-{0:0}, at: console_flush_all+0x158/0xc60 kernel/printk/printk.c:3176
stack backtrace:
CPU: 1 UID: 0 PID: 6770 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2043
check_noncircular+0x14c/0x170 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+0x126f/0x1c90 kernel/locking/lockdep.c:5237
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5825
console_lock_spinning_enable+0x72/0x80 kernel/printk/printk.c:1897
console_emit_next_record kernel/printk/printk.c:3105 [inline]
console_flush_all+0x7aa/0xc60 kernel/printk/printk.c:3199
__console_flush_and_unlock kernel/printk/printk.c:3258 [inline]
console_unlock+0xd8/0x210 kernel/printk/printk.c:3298
vprintk_emit+0x3d7/0x680 kernel/printk/printk.c:2423
_printk+0xc7/0x100 kernel/printk/printk.c:2448
fail_dump lib/fault-inject.c:66 [inline]
should_fail_ex+0x4e7/0x640 lib/fault-inject.c:174
strncpy_from_user+0x3b/0x2e0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:192
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:214 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:309 [inline]
bpf_probe_read_compat_str+0xe8/0x180 kernel/trace/bpf_trace.c:305
bpf_prog_90bb9c41664be20a+0x57/0x68
bpf_dispatcher_nop_func include/linux/bpf.h:1350 [inline]
__bpf_prog_run include/linux/filter.h:721 [inline]
bpf_prog_run include/linux/filter.h:728 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2075 [inline]
bpf_trace_run2+0x239/0x590 kernel/trace/bpf_trace.c:2116
__bpf_trace_contention_end+0xc9/0x110 include/trace/events/lock.h:122
__do_trace_contention_end include/trace/events/lock.h:122 [inline]
trace_contention_end.constprop.0+0xdb/0x160 include/trace/events/lock.h:122
__pv_queued_spin_lock_slowpath+0x281/0xcf0 kernel/locking/qspinlock.c:374
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
raw_spin_rq_lock_nested kernel/sched/core.c:646 [inline]
raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:631
raw_spin_rq_lock kernel/sched/sched.h:1547 [inline]
rq_lock kernel/sched/sched.h:1869 [inline]
__schedule+0x307/0x5de0 kernel/sched/core.c:6833
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7113
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
rcu_preempt_deferred_qs_irqrestore+0x500/0xbc0 kernel/rcu/tree_plugin.h:573
rcu_read_unlock_special kernel/rcu/tree_plugin.h:770 [inline]
__rcu_read_unlock+0x2bc/0x550 kernel/rcu/tree_plugin.h:438
rcu_read_unlock include/linux/rcupdate.h:899 [inline]
xa_load+0x153/0x2c0 lib/xarray.c:1621
__io_uring_add_tctx_node+0xb1/0x500 io_uring/tctx.c:125
__io_uring_add_tctx_node_from_submit+0x89/0x130 io_uring/tctx.c:154
io_uring_add_tctx_node io_uring/tctx.h:32 [inline]
__do_sys_io_uring_enter+0x1239/0x1630 io_uring/io_uring.c:3509
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1dd678efc9
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:00007f1dd7671038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007f1dd69e6180 RCX: 00007f1dd678efc9
RDX: 0000000000000000 RSI: 00000000000847ba RDI: 0000000000000007
RBP: 00007f1dd7671090 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000001
R13: 00007f1dd69e6218 R14: 00007f1dd69e6180 R15: 00007ffff6ad7b08
CPU: 1 UID: 0 PID: 6770 Comm: syz.1.194 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x512/0x640 lib/fault-inject.c:174
strncpy_from_user+0x3b/0x2e0 lib/strncpy_from_user.c:118
strncpy_from_user_nofault+0x7f/0x180 mm/maccess.c:192
bpf_probe_read_user_str_common kernel/trace/bpf_trace.c:214 [inline]
____bpf_probe_read_compat_str kernel/trace/bpf_trace.c:309 [inline]
bpf_probe_read_compat_str+0xe8/0x180 kernel/trace/bpf_trace.c:305
bpf_prog_90bb9c41664be20a+0x57/0x68
bpf_dispatcher_nop_func include/linux/bpf.h:1350 [inline]
__bpf_prog_run include/linux/filter.h:721 [inline]
bpf_prog_run include/linux/filter.h:728 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2075 [inline]
bpf_trace_run2+0x239/0x590 kernel/trace/bpf_trace.c:2116
__bpf_trace_contention_end+0xc9/0x110 include/trace/events/lock.h:122
__do_trace_contention_end include/trace/events/lock.h:122 [inline]
trace_contention_end.constprop.0+0xdb/0x160 include/trace/events/lock.h:122
__pv_queued_spin_lock_slowpath+0x281/0xcf0 kernel/locking/qspinlock.c:374
pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:557 [inline]
queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
do_raw_spin_lock+0x20e/0x2b0 kernel/locking/spinlock_debug.c:116
raw_spin_rq_lock_nested kernel/sched/core.c:646 [inline]
raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:631
raw_spin_rq_lock kernel/sched/sched.h:1547 [inline]
rq_lock kernel/sched/sched.h:1869 [inline]
__schedule+0x307/0x5de0 kernel/sched/core.c:6833
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7113
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
rcu_preempt_deferred_qs_irqrestore+0x500/0xbc0 kernel/rcu/tree_plugin.h:573
rcu_read_unlock_special kernel/rcu/tree_plugin.h:770 [inline]
__rcu_read_unlock+0x2bc/0x550 kernel/rcu/tree_plugin.h:438
rcu_read_unlock include/linux/rcupdate.h:899 [inline]
xa_load+0x153/0x2c0 lib/xarray.c:1621
__io_uring_add_tctx_node+0xb1/0x500 io_uring/tctx.c:125
__io_uring_add_tctx_node_from_submit+0x89/0x130 io_uring/tctx.c:154
io_uring_add_tctx_node io_uring/tctx.h:32 [inline]
__do_sys_io_uring_enter+0x1239/0x1630 io_uring/io_uring.c:3509
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1dd678efc9
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:00007f1dd7671038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007f1dd69e6180 RCX: 00007f1dd678efc9
RDX: 0000000000000000 RSI: 00000000000847ba RDI: 0000000000000007
RBP: 00007f1dd7671090 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000e R11: 0000000000000246 R12: 0000000000000001
R13: 00007f1dd69e6218 R14: 00007f1dd69e6180 R15: 00007ffff6ad7b08