[syzbot] [bpf?] [net?] possible deadlock in tick_setup_sched_timer

From: syzbot
Date: Fri Mar 29 2024 - 11:01:55 EST

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Hello,

syzbot found the following issue on:

HEAD commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree: upstream
console+strace: https://syzkaller.appspot.com/x/log.txt?x=169feab1180000
kernel config: https://syzkaller.appspot.com/x/.config?x=aef2a55903e5791c
dashboard link: https://syzkaller.appspot.com/bug?extid=e4374f6c021d422de3d1
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1422aeb1180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17103c51180000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/089e25869df5/disk-fe46a7dd.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/423b1787914f/vmlinux-fe46a7dd.xz
kernel image: https://storage.googleapis.com/syzbot-assets/4c043e30c07d/bzImage-fe46a7dd.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e4374f6c021d422de3d1@xxxxxxxxxxxxxxxxxxxxxxxxx

=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
6.8.0-syzkaller-08951-gfe46a7dd189e #0 Not tainted
-----------------------------------------------------
swapper/0/0 [HC0[0]:SC1[3]:HE0:SE0] is trying to acquire:
ffffc900036083e0 (&htab->buckets[i].lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline]
ffffc900036083e0 (&htab->buckets[i].lock){+.-.}-{2:2}, at: sock_hash_delete_elem+0xcb/0x260 net/core/sock_map.c:939

and this task is already holding:
ffff8880b943d5d8 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x38e/0x1170 kernel/workqueue.c:2357
which would create a new lock dependency:
(&pool->lock){-.-.}-{2:2} -> (&htab->buckets[i].lock){+.-.}-{2:2}

but this new dependency connects a HARDIRQ-irq-safe lock:
(&pool->lock){-.-.}-{2:2}

.. which became HARDIRQ-irq-safe at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
__queue_work+0x39e/0x1170 kernel/workqueue.c:2360
queue_work_on+0xf4/0x120 kernel/workqueue.c:2435
tick_nohz_activate kernel/time/tick-sched.c:1491 [inline]
tick_setup_sched_timer+0x47c/0x790 kernel/time/tick-sched.c:1592
hrtimer_switch_to_hres kernel/time/hrtimer.c:750 [inline]
hrtimer_run_queues+0x33c/0x450 kernel/time/hrtimer.c:1918
run_local_timers kernel/time/timer.c:2453 [inline]
update_process_times+0xcf/0x220 kernel/time/timer.c:2475
tick_periodic+0x7e/0x230 kernel/time/tick-common.c:100
tick_handle_periodic+0x45/0x120 kernel/time/tick-common.c:112
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x410 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
console_flush_all+0xa19/0xd70 kernel/printk/printk.c:2979
console_unlock+0xae/0x290 kernel/printk/printk.c:3042
vprintk_emit kernel/printk/printk.c:2342 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2367
__clocksource_select+0x33f/0x400 kernel/time/clocksource.c:1046
clocksource_select kernel/time/clocksource.c:1061 [inline]
clocksource_done_booting+0x39/0x50 kernel/time/clocksource.c:1085
do_one_initcall+0x128/0x690 init/main.c:1241
do_initcall_level init/main.c:1303 [inline]
do_initcalls init/main.c:1319 [inline]
do_basic_setup init/main.c:1338 [inline]
kernel_init_freeable+0x69d/0xc40 init/main.c:1550
kernel_init+0x1c/0x2a0 init/main.c:1439
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243

to a HARDIRQ-irq-unsafe lock:
(&htab->buckets[i].lock){+.-.}-{2:2}

.. which became HARDIRQ-irq-unsafe at:
..
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
sock_hash_free+0x130/0x820 net/core/sock_map.c:1154
bpf_map_free_deferred+0x1ce/0x420 kernel/bpf/syscall.c:734
process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243

other info that might help us debug this:

Possible interrupt unsafe locking scenario:

CPU0 CPU1
---- ----
lock(&htab->buckets[i].lock);
local_irq_disable();
lock(&pool->lock);
lock(&htab->buckets[i].lock);
<Interrupt>
lock(&pool->lock);

*** DEADLOCK ***

4 locks held by swapper/0/0:
#0: ffffc90000007cb0 (&(&krcp->monitor_work)->timer){..-.}-{0:0}, at: call_timer_fn+0x11a/0x5b0 kernel/time/timer.c:1789
#1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#1: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: __queue_work+0xf2/0x1170 kernel/workqueue.c:2324
#2: ffff8880b943d5d8 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x38e/0x1170 kernel/workqueue.c:2357
#3: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#3: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#3: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: __bpf_trace_run kernel/trace/bpf_trace.c:2380 [inline]
#3: ffffffff8d7b08e0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run1+0xdc/0x410 kernel/trace/bpf_trace.c:2419

the dependencies between HARDIRQ-irq-safe lock and the holding lock:
-> (&pool->lock){-.-.}-{2:2} {
IN-HARDIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
__queue_work+0x39e/0x1170 kernel/workqueue.c:2360
queue_work_on+0xf4/0x120 kernel/workqueue.c:2435
tick_nohz_activate kernel/time/tick-sched.c:1491 [inline]
tick_setup_sched_timer+0x47c/0x790 kernel/time/tick-sched.c:1592
hrtimer_switch_to_hres kernel/time/hrtimer.c:750 [inline]
hrtimer_run_queues+0x33c/0x450 kernel/time/hrtimer.c:1918
run_local_timers kernel/time/timer.c:2453 [inline]
update_process_times+0xcf/0x220 kernel/time/timer.c:2475
tick_periodic+0x7e/0x230 kernel/time/tick-common.c:100
tick_handle_periodic+0x45/0x120 kernel/time/tick-common.c:112
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x410 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
console_flush_all+0xa19/0xd70 kernel/printk/printk.c:2979
console_unlock+0xae/0x290 kernel/printk/printk.c:3042
vprintk_emit kernel/printk/printk.c:2342 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2297
vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
_printk+0xc8/0x100 kernel/printk/printk.c:2367
__clocksource_select+0x33f/0x400 kernel/time/clocksource.c:1046
clocksource_select kernel/time/clocksource.c:1061 [inline]
clocksource_done_booting+0x39/0x50 kernel/time/clocksource.c:1085
do_one_initcall+0x128/0x690 init/main.c:1241
do_initcall_level init/main.c:1303 [inline]
do_initcalls init/main.c:1319 [inline]
do_basic_setup init/main.c:1338 [inline]
kernel_init_freeable+0x69d/0xc40 init/main.c:1550
kernel_init+0x1c/0x2a0 init/main.c:1439
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
IN-SOFTIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
__queue_work+0x39e/0x1170 kernel/workqueue.c:2360
call_timer_fn+0x1a0/0x5b0 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1838 [inline]
__run_timers+0x567/0xab0 kernel/time/timer.c:2408
__run_timer_base kernel/time/timer.c:2419 [inline]
__run_timer_base kernel/time/timer.c:2412 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2428
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2438
__do_softirq+0x218/0x8de kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:633 [inline]
irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
default_idle+0xf/0x20 arch/x86/kernel/process.c:742
default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:191 [inline]
do_idle+0x32c/0x3f0 kernel/sched/idle.c:332
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
rest_init+0x16f/0x2b0 init/main.c:730
arch_call_rest_init+0x13/0x40 init/main.c:831
start_kernel+0x3a3/0x490 init/main.c:1077
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x148
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
__queue_work+0x39e/0x1170 kernel/workqueue.c:2360
queue_work_on+0xf4/0x120 kernel/workqueue.c:2435
queue_work include/linux/workqueue.h:605 [inline]
start_poll_synchronize_rcu_expedited+0x147/0x180 kernel/rcu/tree_exp.h:1017
rcu_init+0x1625/0x20c0 kernel/rcu/tree.c:5240
start_kernel+0x19e/0x490 init/main.c:969
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x148
}
... key at: [<ffffffff929d9de0>] __key.17+0x0/0x40

the dependencies between the lock to be acquired
and HARDIRQ-irq-unsafe lock:
-> (&htab->buckets[i].lock){+.-.}-{2:2} {
HARDIRQ-ON-W at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
sock_hash_free+0x130/0x820 net/core/sock_map.c:1154
bpf_map_free_deferred+0x1ce/0x420 kernel/bpf/syscall.c:734
process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
IN-SOFTIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
sock_hash_delete_elem+0xcb/0x260 net/core/sock_map.c:939
___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
__bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run1+0x149/0x410 kernel/trace/bpf_trace.c:2419
__bpf_trace_workqueue_activate_work+0x98/0xd0 include/trace/events/workqueue.h:59
trace_workqueue_activate_work include/trace/events/workqueue.h:59 [inline]
__queue_work+0xd0d/0x1170 kernel/workqueue.c:2399
call_timer_fn+0x1a0/0x5b0 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1838 [inline]
__run_timers+0x567/0xab0 kernel/time/timer.c:2408
__run_timer_base kernel/time/timer.c:2419 [inline]
__run_timer_base kernel/time/timer.c:2412 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2428
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2438
__do_softirq+0x218/0x8de kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:633 [inline]
irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x85/0x510 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:332
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
rest_init+0x16f/0x2b0 init/main.c:730
arch_call_rest_init+0x13/0x40 init/main.c:831
start_kernel+0x3a3/0x490 init/main.c:1077
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x148
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
sock_hash_free+0x130/0x820 net/core/sock_map.c:1154
bpf_map_free_deferred+0x1ce/0x420 kernel/bpf/syscall.c:734
process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
}
... key at: [<ffffffff949c67c0>] __key.0+0x0/0x40
... acquired at:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
sock_hash_delete_elem+0xcb/0x260 net/core/sock_map.c:939
___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
__bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run1+0x149/0x410 kernel/trace/bpf_trace.c:2419
__bpf_trace_workqueue_activate_work+0x98/0xd0 include/trace/events/workqueue.h:59
trace_workqueue_activate_work include/trace/events/workqueue.h:59 [inline]
__queue_work+0xd0d/0x1170 kernel/workqueue.c:2399
call_timer_fn+0x1a0/0x5b0 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1838 [inline]
__run_timers+0x567/0xab0 kernel/time/timer.c:2408
__run_timer_base kernel/time/timer.c:2419 [inline]
__run_timer_base kernel/time/timer.c:2412 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2428
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2438
__do_softirq+0x218/0x8de kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:633 [inline]
irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline]
acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x85/0x510 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:332
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
rest_init+0x16f/0x2b0 init/main.c:730
arch_call_rest_init+0x13/0x40 init/main.c:831
start_kernel+0x3a3/0x490 init/main.c:1077
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x148

stack backtrace:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
<IRQ>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_bad_irq_dependency kernel/locking/lockdep.c:2626 [inline]
check_irq_usage+0xe3c/0x1490 kernel/locking/lockdep.c:2865
check_prev_add kernel/locking/lockdep.c:3138 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain kernel/locking/lockdep.c:3869 [inline]
__lock_acquire+0x248e/0x3b30 kernel/locking/lockdep.c:5137
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:356 [inline]
sock_hash_delete_elem+0xcb/0x260 net/core/sock_map.c:939
___bpf_prog_run+0x3e51/0xae80 kernel/bpf/core.c:1997
__bpf_prog_run32+0xc1/0x100 kernel/bpf/core.c:2236
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline]
bpf_trace_run1+0x149/0x410 kernel/trace/bpf_trace.c:2419
__bpf_trace_workqueue_activate_work+0x98/0xd0 include/trace/events/workqueue.h:59
trace_workqueue_activate_work include/trace/events/workqueue.h:59 [inline]
__queue_work+0xd0d/0x1170 kernel/workqueue.c:2399
call_timer_fn+0x1a0/0x5b0 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1838 [inline]
__run_timers+0x567/0xab0 kernel/time/timer.c:2408
__run_timer_base kernel/time/timer.c:2419 [inline]
__run_timer_base kernel/time/timer.c:2412 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2428
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2438
__do_softirq+0x218/0x8de kernel/softirq.c:554
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:633 [inline]
irq_exit_rcu+0xb9/0x120 kernel/softirq.c:645
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 d8 60 31 75 48 8b 00 a8 08 75 0c 66 90 0f 00 2d c8 73 a7 00 fb f4 <fa> c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffffff8d407d68 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8ad255f9
RDX: 0000000000000001 RSI: ffff88801bab8000 RDI: ffff88801bab8064
RBP: ffff88801bab8064 R08: 0000000000000001 R09: ffffed1017286fdd
R10: ffff8880b9437eeb R11: 0000000000000000 R12: ffff8880173d4800
R13: ffffffff8e31fbc0 R14: 0000000000000000 R15: 0000000000000000
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x85/0x510 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x313/0x3f0 kernel/sched/idle.c:332
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
rest_init+0x16f/0x2b0 init/main.c:730
arch_call_rest_init+0x13/0x40 init/main.c:831
start_kernel+0x3a3/0x490 init/main.c:1077
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:509
x86_64_start_kernel+0xb2/0xc0 arch/x86/kernel/head64.c:490
common_startup_64+0x13e/0x148
</TASK>
----------------
Code disassembly (best guess):
0: 90 nop
1: 90 nop
2: 90 nop
3: 90 nop
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 65 48 8b 05 d8 60 31 mov %gs:0x753160d8(%rip),%rax # 0x753160f0
17: 75
18: 48 8b 00 mov (%rax),%rax
1b: a8 08 test $0x8,%al
1d: 75 0c jne 0x2b
1f: 66 90 xchg %ax,%ax
21: 0f 00 2d c8 73 a7 00 verw 0xa773c8(%rip) # 0xa773f0
28: fb sti
29: f4 hlt
* 2a: fa cli <-- trapping instruction
2b: c3 ret
2c: cc int3
2d: cc int3
2e: cc int3
2f: cc int3
30: 90 nop
31: 90 nop
32: 90 nop
33: 90 nop
34: 90 nop
35: 90 nop
36: 90 nop
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop

---
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