rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-...!: (1 GPs behind) idle=79c4/1/0x4000000000000000 softirq=68115/68116 fqs=2
(detected by 1, t=10505 jiffies, g=113801, q=46 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3620 Comm: kworker/0:7 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x7b/0x290 mm/kasan/generic.c:189
Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 <0f> 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf
RSP: 0018:ffffc90000007b58 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff1ce712d RCX: ffffffff816a8827
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e738968
RBP: 0000000000000001 R08: dffffc0000000000 R09: fffffbfff1ce712d
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff92000000f7c
R13: ffffffff8179ba20 R14: fffffbfff1ce712e R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555569d1938 CR3: 000000005c4d4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:72 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:444 [inline]
cpu_online include/linux/cpumask.h:1030 [inline]
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xc7/0xa20 kernel/locking/lockdep.c:5673
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x75/0x130 kernel/locking/spinlock.c:194
__run_hrtimer kernel/time/hrtimer.c:1682 [inline]
__hrtimer_run_queues+0x4b0/0xe50 kernel/time/hrtimer.c:1750
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:console_emit_next_record+0xd67/0x1000 kernel/printk/printk.c:2786
Code: 2a 1c 00 44 0f b6 74 24 1f 48 83 7c 24 30 00 75 07 e8 6d 2a 1c 00 eb 06 e8 66 2a 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <43> c7 04 2c 00 00 00 00 4b c7 44 2c 0a 00 00 00 00 4b c7 44 2c 12
RSP: 0018:ffffc9000446efc0 EFLAGS: 00000287
RAX: ffffffff816e62ea RBX: ffffffff816e602c RCX: 0000000000040000
RDX: ffffc9001279b000 RSI: 0000000000016c41 RDI: 0000000000016c42
RBP: ffffc9000446f270 R08: ffffffff816e62c2 R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200088de0c R14: 0000000000000001 R15: 0000000000000000
console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906
vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
dev_vprintk_emit+0x2aa/0x323 drivers/base/core.c:4922
dev_printk_emit+0xd9/0x118 drivers/base/core.c:4933
_dev_info+0x11e/0x165 drivers/base/core.c:4991
show_string drivers/usb/core/hub.c:2326 [inline]
announce_device drivers/usb/core/hub.c:2344 [inline]
usb_new_device+0x1004/0x18f0 drivers/usb/core/hub.c:2601
hub_port_connect drivers/usb/core/hub.c:5477 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5617 [inline]
port_event drivers/usb/core/hub.c:5773 [inline]
hub_event+0x2efe/0x5730 drivers/usb/core/hub.c:5855
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: rcu_preempt kthread starved for 10495 jiffies! g113801 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:R running task stack:25528 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 3708 Comm: kworker/u4:6 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline]
RIP: 0010:smp_call_function_many_cond+0x1fb0/0x3460 kernel/smp.c:998
Code: 2f 44 89 ee 83 e6 01 31 ff e8 ec 42 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 77 3f 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc900046175a0 EFLAGS: 00000293
RAX: ffffffff817f4dfb RBX: 1ffff1101730859d RCX: ffff88801f3e1dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004617980 R08: ffffffff817f4dc4 R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9842ce8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa55f021000 CR3: 000000000ce8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1334 [inline]
text_poke_bp_batch+0x2bb/0x940 arch/x86/kernel/alternative.c:1534
text_poke_flush arch/x86/kernel/alternative.c:1725 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1732
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x480 mm/kfence/core.c:804
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [kworker/u4:6:3708]
Modules linked in:
irq event stamp: 16656098
hardirqs last enabled at (16656097): [] asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
hardirqs last disabled at (16656098): [] sysvec_apic_timer_interrupt+0xa/0xb0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (16604850): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last enabled at (16604850): [] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
softirqs last disabled at (16604813): [] invoke_softirq kernel/softirq.c:445 [inline]
softirqs last disabled at (16604813): [] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
CPU: 1 PID: 3708 Comm: kworker/u4:6 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:424 [inline]
RIP: 0010:smp_call_function_many_cond+0x1fb0/0x3460 kernel/smp.c:998
Code: 2f 44 89 ee 83 e6 01 31 ff e8 ec 42 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 0a e8 77 3f 0b 00 e9 1b ff ff ff f3 90 <42> 0f b6 04 2b 84 c0 75 14 41 f7 07 01 00 00 00 0f 84 fe fe ff ff
RSP: 0018:ffffc900046175a0 EFLAGS: 00000293
RAX: ffffffff817f4dfb RBX: 1ffff1101730859d RCX: ffff88801f3e1dc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90004617980 R08: ffffffff817f4dc4 R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000800000000
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b9842ce8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa55f021000 CR3: 000000000ce8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1166
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:1334 [inline]
text_poke_bp_batch+0x2bb/0x940 arch/x86/kernel/alternative.c:1534
text_poke_flush arch/x86/kernel/alternative.c:1725 [inline]
text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1732
arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
static_key_enable_cpuslocked+0x12e/0x250 kernel/jump_label.c:177
static_key_enable+0x16/0x20 kernel/jump_label.c:190
toggle_allocation_gate+0xbf/0x480 mm/kfence/core.c:804
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3620 Comm: kworker/0:7 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1703 [inline]
RIP: 0010:__hrtimer_run_queues+0x71e/0xe50 kernel/time/hrtimer.c:1750
Code: 24 38 48 8b 54 24 20 0f 85 93 02 00 00 0f b6 1a 89 de 83 e6 01 31 ff e8 30 d3 10 00 83 e3 01 75 21 e8 c6 d0 10 00 48 8b 3c 24 <4c> 89 ee 31 d2 e8 08 2a 00 00 eb 11 e8 b1 d0 10 00 4c 8b 6c 24 38
RSP: 0018:ffffc90000007d60 EFLAGS: 00000046
RAX: ffffffff8179bc8a RBX: 0000000000000000 RCX: ffff88801f58d940
RDX: 0000000000010002 RSI: 0000000000000000 RDI: ffff888078eb7340
RBP: ffffc90000007eb0 R08: ffffffff8179bc80 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8880b982a4c0
R13: ffff8880b982a5c0 R14: ffff8880b982a4c0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555569d1938 CR3: 000000005c4d4000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:console_emit_next_record+0xd67/0x1000 kernel/printk/printk.c:2786
Code: 2a 1c 00 44 0f b6 74 24 1f 48 83 7c 24 30 00 75 07 e8 6d 2a 1c 00 eb 06 e8 66 2a 1c 00 fb 48 c7 84 24 a0 00 00 00 0e 36 e0 45 <43> c7 04 2c 00 00 00 00 4b c7 44 2c 0a 00 00 00 00 4b c7 44 2c 12
RSP: 0018:ffffc9000446efc0 EFLAGS: 00000287
RAX: ffffffff816e62ea RBX: ffffffff816e602c RCX: 0000000000040000
RDX: ffffc9001279b000 RSI: 0000000000016c41 RDI: 0000000000016c42
RBP: ffffc9000446f270 R08: ffffffff816e62c2 R09: fffffbfff2093845
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff9200088de0c R14: 0000000000000001 R15: 0000000000000000
console_unlock+0x278/0x7c0 kernel/printk/printk.c:2906
vprintk_emit+0x523/0x740 kernel/printk/printk.c:2303
dev_vprintk_emit+0x2aa/0x323 drivers/base/core.c:4922
dev_printk_emit+0xd9/0x118 drivers/base/core.c:4933
_dev_info+0x11e/0x165 drivers/base/core.c:4991
show_string drivers/usb/core/hub.c:2326 [inline]
announce_device drivers/usb/core/hub.c:2344 [inline]
usb_new_device+0x1004/0x18f0 drivers/usb/core/hub.c:2601
hub_port_connect drivers/usb/core/hub.c:5477 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5617 [inline]
port_event drivers/usb/core/hub.c:5773 [inline]
hub_event+0x2efe/0x5730 drivers/usb/core/hub.c:5855
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308