rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P977/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=46921, q=27 ncpus=2)
task:kworker/0:2 state:R running task stack:19448 pid:977 tgid:977 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7086
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:gc_worker+0x397/0x1400
Code: bd f7 eb c6 4c 89 ff 48 89 8c 24 90 00 00 00 48 8b b4 24 90 00 00 00 e8 27 6a bd f7 4c 3b bc 24 90 00 00 00 0f 83 11 0a 00 00 <4c> 89 bc 24 88 00 00 00 4a 8d 1c fb 48 89 d8 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc90003a479c0 EFLAGS: 00000283
RAX: 0000000000000000 RBX: ffff888023c00000 RCX: ffff8880267a0000
RDX: 0000000000000000 RSI: 0000000000040000 RDI: 0000000000012204
RBP: ffffc90003a47b10 R08: ffffffff8a01f4a9 R09: 1ffffffff285871c
R10: dffffc0000000000 R11: fffffbfff285871d R12: 0000000000040000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000012204
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: rcu_preempt kthread timer wakeup didn't happen for 10495 jiffies! g46921 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=40438
rcu: rcu_preempt kthread starved for 10496 jiffies! g46921 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:25848 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5377 [inline]
__schedule+0x18bc/0x4c40 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6856
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2024
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2226
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 11770 Comm: syz.1.1519 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:variable_test_bit arch/x86/include/asm/bitops.h:227 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:239 [inline]
RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
RIP: 0010:cpumask_test_cpu include/linux/cpumask.h:570 [inline]
RIP: 0010:cpu_online include/linux/cpumask.h:1116 [inline]
RIP: 0010:trace_hrtimer_cancel include/trace/events/timer.h:317 [inline]
RIP: 0010:debug_deactivate+0x67/0x220 kernel/time/hrtimer.c:476
Code: e8 ce 6a 12 00 89 dd 48 89 e8 48 c1 e8 06 48 8d 3c c5 70 17 1a 90 be 08 00 00 00 e8 33 7b 76 00 31 db 48 0f a3 2d a9 25 6d 0e <40> 0f 92 c5 0f 92 c3 bf 02 00 00 00 89 de e8 96 6d 12 00 31 ff 89
RSP: 0018:ffffc90000a17f00 EFLAGS: 00000047
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff81acf1bd
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901a1770
RBP: 0000000000000001 R08: ffffffff901a1777 R09: 1ffffffff20342ee
R10: dffffc0000000000 R11: fffffbfff20342ef R12: 1ffff110170e58cb
R13: dffffc0000000000 R14: ffff88807df9f340 R15: ffff8880b872c600
FS: 00007f06609406c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002001b000 CR3: 0000000029dfe000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer kernel/time/hrtimer.c:1706 [inline]
__hrtimer_run_queues+0x305/0xd30 kernel/time/hrtimer.c:1802
hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1864
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:queue_work_on+0x269/0x380 kernel/workqueue.c:2395
Code: 75 19 e8 ea e5 37 00 eb 18 e8 e3 e5 37 00 e8 ee 02 66 0a 48 83 7c 24 10 00 74 e7 e8 d1 e5 37 00 fb 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 37 00 00 00 00 43 c7 44 37 09 00 00 00 00 66 43 c7 44 37
RSP: 0018:ffffc90000a18280 EFLAGS: 00000246
RAX: ffffffff8187769f RBX: 0000000000000000 RCX: ffff88802bc73c00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000a18378 R08: ffffffff8187766f R09: 1ffffffff2858729
R10: dffffc0000000000 R11: fffffbfff285872a R12: 0000000002000001
R13: 0000000000000046 R14: 1ffff92000143054 R15: dffffc0000000000
__ieee80211_queue_skb_to_iface net/mac80211/rx.c:233 [inline]
ieee80211_queue_skb_to_iface net/mac80211/rx.c:244 [inline]
ieee80211_rx_h_mgmt+0x50f/0x710 net/mac80211/rx.c:4069
ieee80211_rx_handlers+0x67fc/0xb8e0 net/mac80211/rx.c:4227
ieee80211_invoke_rx_handlers net/mac80211/rx.c:4257 [inline]
ieee80211_prepare_and_rx_handle+0x3212/0x6490 net/mac80211/rx.c:5107
__ieee80211_rx_handle_packet net/mac80211/rx.c:5348 [inline]
ieee80211_rx_list+0x2df4/0x3810 net/mac80211/rx.c:5483
ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5506
ieee80211_rx include/net/mac80211.h:5172 [inline]
ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441
tasklet_action_common+0x426/0x620 kernel/softirq.c:811
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5251
Code: c9 50 e8 79 09 0c 00 48 83 c4 08 4c 89 f7 e8 fd 39 00 00 e9 de 04 00 00 4c 89 f7 e8 e0 81 61 0a e8 cb 66 38 00 fb 48 8b 5d c0 <48> 8d bb 08 16 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc9000b91f588 EFLAGS: 00000282
RAX: 4e22d785fb8b2000 RBX: ffff88802bc73c00 RCX: ffffffff9a3ca903
RDX: dffffc0000000000 RSI: ffffffff8c0aa680 RDI: ffffffff8c5fac60
RBP: ffffc9000b91f5d0 R08: ffffffff901a1777 R09: 1ffffffff20342ee
R10: dffffc0000000000 R11: fffffbfff20342ef R12: 1ffff110170e7eb6
R13: dffffc0000000000 R14: ffff8880b863e780 R15: ffff8880b873f5b0
context_switch kernel/sched/core.c:5380 [inline]
__schedule+0x18c4/0x4c40 kernel/sched/core.c:6764
__schedule_loop kernel/sched/core.c:6841 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6856
schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
rdmsr_safe_on_cpu+0x16c/0x310 arch/x86/lib/msr-smp.c:181
msr_read+0x15d/0x260 arch/x86/kernel/msr.c:66
vfs_read+0x1f8/0xb40 fs/read_write.c:563
ksys_read+0x18f/0x2b0 fs/read_write.c:708
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f065fb8cda9
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:00007f0660940038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f065fda5fa0 RCX: 00007f065fb8cda9
RDX: 0000000000018ff8 RSI: 0000000020019680 RDI: 0000000000000003
RBP: 00007f065fc0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f065fda5fa0 R15: 00007ffc131c1ee8